Xerox Phaser 7800 error and solving error codes

Xerox Phaser 7800 error and solving error codes

– Compatible Printer model: Xerox Phaser 7800
– Xerox Phaser 7800 Error Codes with quick guides:

• Code: 309.006.00
• Description: 2nd BTR Unit (Transfer Roller) End Warning The 2nd BTR must be replaced.
• Troubleshooting Guides: 1. Replace the 2nd BTR Assembly. 2. Reset the Transfer Roller (Printer Control Panel menu > Printer > Tools > Setup > Service Tools > Reset HFSI Counters. 3. Select Transfer Roller. 4. Touch Reset Counter. 5. After the reset is complete, the display returns to the previous screen with new life counter information for the reset component. 6. Touch the Back Arrow to return to the Service Tools menu.

• Code: 309.607.00
• Description: IBT CLN Unit End Warning The IBT Cleaner needs to be replaced soon.
• Troubleshooting Guides: 1. Replace the IBT Belt Cleaner Assembly. 2. Reset the Transfer Roller (Printer Control Panel menu > Printer > Tools > Setup > Service Tools > Reset HFSI Counters. 3. Select Belt Cleaner. 4. Touch Reset Counter. 5. After the reset is complete, the display returns to the previous screen with new life counter information for the reset component 6. Touch the Back Arrow to return to the Service Tools menu.

• Code: 309.608
• Description: 1/2/3/4 Yellow/ Magenta/ Cyan/ Black Developer Housing/ Developer Beads End of Life The Yellow/ Magenta/ Cyan/ Black Developer Housing Developer Beads has reached the end of its life span.
• Troubleshooting Guides: The rated life of the developer housing and beads is 480K prints. If this fault occurs at an unexpected time or if this fault does not occur at expected timing, check the following: 1. Check the HFSI counter for the developer or beads corresponding to the chain link displayed. • From the Control Menu menu, select Printer > Tools > Setup > Service Tools > Service Diagnostics > Maintenance > dc135 (dc135 CRU/HFSI Status and Reset). • Select Reset HFSI > Developer X Counters. If the message is premature, reset the Developer life counter, perform the following procedure.
  1. Replace the effected Developer and beads. Reset the HFSI counter for the Developer(s) that was replaced in. 2. From the Control Menu, select Printer > Tools > Setup > Service Tools > Service Diagnostics > Maintenance > dc135 (dc135 CRU/HFSI Status and Reset). NOTE: Check the remaining life on the other Developers. If they are also near the end of their life, all developers and beads near end of life should be replaced on the same service call.

• Code: 309.609
• Description: Tray 1 (MPT)/ 2/ 3/ 4/ 5 Feed/ Retard/ Nudge Roll The Tray 1/ 2/ 3/ 4/ 5 Feed/ Retard/ Nudge Roll has reached the end of life.
• Troubleshooting Guides: If this fault occurs at an unexpected time or if this fault does not occur at expected timing, check steps 4 and 5 in the notes. 1. Replace the Feed/ Retard/ Nudge Rollers following the appropriate REP: • 309-609-1: Tray 1(MPT) • 309-609-2: Tray 2 • 309-609-3: Tray 3, 3TM, TTM • 309-609-4: Tray 4, 3TM, TTM • 309-609-5: Tray 5, 3TM, TTM 2. Reset the HFSI counter for the tray the rollers were replaced in. From the Control Panel menu, select Printer > Tools > Setup > Service Tools > Reset HFSI > Feed Rollers X Counters. 3. HFSI counters can be accessed through Service Diagnostics in dc135 CRU/HFSI Status and Reset to determine life remaining. NOTE: 1. If the retard roller is being replaced for multi-pick failures and the failures continue with the new retard roller, replace the friction clutch PL 9.5 item 19 or, for Tray 1/MPT, PL13.4 item 5. 2. If the Tray 1/MPT Pick Roller is replaced for pick failures and the failures continue with the new Roller, replace the Oneway Clutch (PL 13.3 Item 14 & PL 13.3 Item 15). 3. The Tray 1/MPT Feed/ Retard/ Nudge Rollers are a different part than the Feed/ Retard/ Nudge Rollers for Trays 2, 3, 4, 5. The surface texture is different because the Tray1/MPT Rollers rotate in a direction opposite that of the other trays. 4. Feed Roller life for Tray 1/MPT is 100K feeds. If this fault occurs before 100K feeds, just reset the HFSI counter. 5. Feed Roller life for Trays 2, 3, 4, 5 is 300K feeds. If this fault occurs before 300K feeds, just reset the HFSI counter.

• Code: 309.612.00
• Description: Fuser EOL The Fuser has reached the end of life.
• Troubleshooting Guides: The rated life of the fuser is 360K letter/A4 prints. If this fault occurs at an unexpected time or a replacement fuser does not reset the EOL message, check the following: Condition 1 – Existing Fuser 1. If this fault occurs prematurely, check the HFSI counter for the fuser corresponding to the status chain link displayed. • From the Control Panel menu, select Printer > Tools > Setup > Service Tools > Service Diagnostics > Maintenance > dc135 (dc135 CRU/HFSI Status and Reset). • Select Reset HFSI > Fuser Counters. If the message is premature, reset the fuser life counter, otherwise perform the following procedure. Condition 2 – New Fuser The customer could be trying to use a Fuser that was installed briefly in the printer for troubleshooting purposes. If this is the case the new Fuser fuse would have been blown and the printer can’t sense that the Fuser is a new replacement. 1. In this case the Fuser life can be reset: From the Control Panel menu, select Printer > Tools > Setup > Service Tools > Service Diagnostics > Maintenance > dc135 (dc135 CRU/HFSI Status and Reset). Select Reset HFSI > Fuser Counters.

• Code: 309.613.00
• Description: IBT Unit End Warning The IBT Assembly must be replaced.
• Troubleshooting Guides: 1. Replace the IBT Assembly. 2. Clear dc135 CRU/HFSI Status and Reset [954-820] (IBT Unit).

• Code: 309.670.00
• Description: Suction Filter EOL The Suction Filter has reached the end of life.
• Troubleshooting Guides: 1. Replace the Suction Filter.

• Code: 310.329
• Description: Fuser Cut Fail After the fuser is replaced with new one, the fuse (fuse1) did not change to Open state in 1 sec.
• Troubleshooting Guides: • Turn the power Off and check whether the Fuser Assembly is installed properly. Power back on and if the error has not cleared, follow the procedure.
  Remove the Fuser Assembly and check the resistance between pins A1 and A2 on the Fuser Assembly. Is the readying ~0 ohms? Y↓ N→Check the wiring between DJ600-A10 and J431-2 on the MCU PWB. Is the resistance ~0 ohms? Y↓ N→Repair the wiring. Is the voltage between DJ600 A11 (+) and the GND (-) +3.3VDC? Y↓ N→Is the voltage between J431-1 (+) and the GND (-) +3.3VDC? Y↓ N→Repair the wiring Replace the MCU PWB. Replace the MCU PWB. Replace the MCU PWB.

• Code: 310.330
• Description: Fuser Motor Fault. The Fuser Drive Motor revolution failure was detected.
• Troubleshooting Guides: • Turn the power Off and check whether the Fuser Assembly is installed properly. • With the Fuser in closed state, rotate the Roller manually to check for loading.
  Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Turn the power On and enter Service Diagnostics Menu (Entering Service Diagnostics). Turn On dc330 Component Control [010-006] (Fuser Drive Motor). Does the Fuser Drive Motor rotate? Y↓ N→Is the voltage between the Fuser Drive Motor P/J242-1 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Is the voltage between the Fuser Drive Motor P/J243-1 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power. Turn the power Off and check the connection between the MD PWB P/J525 and the Fuser Drive Motor P/J243 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Fuser Drive Motor • MD PWB • MCU PWB Press the Stop button. Check the operation of dc330 Component Control [094-012] (1st BTR Contact) and dc330 Component Control [094-013] (1st BTR Retract) alternately. Does the Fuser Drive Motor rotate? Y↓ N→Turn the power Off and check the 1st BTR Contact/Retract Gear for blockage or damage. Turn the power Off and check the connection between the Fuser Drive Motor P/J243-8 and the MD PWB P/J525-A1 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 310.360
• Description: IH Driver Input High Voltage Fault. The input voltage of the IH Driver is high voltage (150VAC or higher). (Status code 0x1 is received)
• Troubleshooting Guides: Turn the power Off. Remove the Right Cover and remove the Front LVPS Fan. Turn the main power On (turn On the Main Power Switch). Is the voltage between the Main LVPS P/J6-1 and J6-3 100VAC? Y↓ N→Go to AC Power RAP. Turn the main power Off and replace the following parts in sequence: • IH Drive PWB • MCU PWB

• Code: 310.361
• Description: IH Driver Input Low Voltage Fault. The input voltage of the IH Driver is low voltage (80VAC or lower). (Status code 0x2 is received)
• Troubleshooting Guides: Turn the power Off. Remove the Right Cover and remove the Front LVPS Fan. Turn the main power On (turn On the Main Power Switch). Is the voltage between the Main LVPS P/J6-1 and P/J6-3 100VAC? Y↓ N→Go to AC Power RAP. Turn the main power Off and replace the following parts in sequence: • IH Driver PWB • MCU PWB

• Code: 310.362
• Description: IH Driver Surge Fault. The IH Driver detected surge. (Status code 0x3 is received)
• Troubleshooting Guides: 1. Turn the power Off and On. If the error does not clear, continue to step 2. 2. Check the voltage and voltage variation at customer’s outlet. If the problem was not resolved by turning the power Off then On and no problems were found after checking the voltage and voltage noise at the outlet, replace the IH Driver PWB.

Solve Xerox Phaser 7800 Error codes

• Code: 310.363
• Description: IGBT Temperature High Fault. The IGBT Temperature Sensor detected high temperature. (Status code 0x4 is received)
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Turn the power On and enter the Service Diagnostics Menu (Entering Service Diagnostics). Turn On dc330 Component Control [042-016] (IH Intake Fan). Is the IH Intake Fan rotating? Y↓ N→Proceed to the 342.332 RAP. Is the IH Exhaust Fan rotating? Y↓ N→Proceed to the 342.330 RAP. Press the Stop button. Turn the power Off and check the connection between the IH Driver P/J530 and the MCU PWB P/J414 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • IH Driver PWB • MCU PWB

• Code: 310.364
• Description: IGBT Temperature Sensor Fault. An open circuit, short circuit, or abnormal change in Sensor value was detected at the IGBT Temperature Sensor. (Status code 0x5 is received)
• Troubleshooting Guides: 1. Turn the power Off and On. If the error doesn’t clear, go to step 2. 2. Turn the power Off and check the connection between the IH Driver P/J530 and the MCU PWB P/J414 for open circuit, short circuit, and poor contact. 3. If no problems are found, replace the following parts in sequence: • IH Driver PWB • MCU PWB

• Code: 310.367
• Description: Input Low Current Fault. The input current was below the lower limit continuously for the specified time. (Status code 0x8 is received)
• Troubleshooting Guides: Turn the power Off and remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc.
  • The relay connector P/J634 for poor contact • The connection between the IH Driver T60 and the Fuser Assembly DJ600-1 for short circuit and poor contact • The connection between the IH Driver T61 and the Fuser Assembly DJ600-3 for short circuit and poor contact If no problems are found, replace the following parts in sequence: • IH Driver PWB • Fuser Assembly • MCU PWB

• Code: 310.368
• Description: Encoder Pulse Fault. The level change of the Belt Speed Sensor was in less than 1 second. (Status code 0x9 is received)
• Troubleshooting Guides: • Turn the power Off and remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Check the following connections for short circuits and poor contacts. • Between MCU PWB P/J431-12 and Fuser Assembly DJ600-B7 • Between MCU PWB P/J431-13 and Fuser Assembly DJ600-B6 • Between MCU PWB P/J431-14 and Fuser Assembly DJ600-B5 If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.369
• Description: IH Driver Communication Fault. Communication error between the IH Driver and the MCU PWB has occurred. (Status code 0xC is received. Or, communication error between the DD and the IH was detected)
• Troubleshooting Guides: 1. Turn the power Off and On. If the error doesn’t clear, go to step 2. 2. Turn the power Off and check the connection between the MCU PWB P/J414 and the IH Driver PWB P/J530 for open circuit, short circuit, and poor contact. 3. If no problems are found, replace the following parts in sequence: • IH Driver PWB • MCU PWB

• Code: 310.370
• Description: IH Driver Freeze Fault. The IH Driver Freeze port became Active (Low). (The CPU of the IH Driver has hanged.)
• Troubleshooting Guides: 1. Turn the power Off and On. If the error doesn’t clear, go to step 2. 2. Turn the power Off and check the connection between the MCU PWB P/J414 and the IH Driver PWB P/J530 for open circuit, short circuit, and poor contact. 3. If no problems are found, replace the following parts in sequence: • IH Driver PWB • MCU PWB

• Code: 310.371
• Description: Heat Belt STS Center Disconnection Fault. The open circuit AD value of the Center Thermistor was detected 3 times in a row.
• Troubleshooting Guides: • Turn the power Off and remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Measure the resistance between Fuser Assembly P600-A7 and P600-A8. Is the resistance infinite? Y↓ N→Check the following connections for open circuits, short circuits, and poor contacts. • Between DJ600-A5 and MCU PWB P/J431-7 • Between DJ600-A4 and MCU PWB P/J431-8 If no problems are found, replace the MCU PWB. Replace the Fuser Assembly.

• Code: 310.372
• Description: Heat Roll STS Center Over Temperature Fault. The AD value of the Center Thermistor was detected to be higher than the defined value 4 times in a row.
• Troubleshooting Guides: • Turn the power Off and remove the Fuser Assembly. Check whether foreign substances or paper is wound around the Heat Roll. • Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Check the following connections for short circuits and poor contacts. • Between DJ600-A5 and MCU PWB P/J431-7 • Between DJ600-A4 and MCU PWB P/J431-8 If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.373
• Description: Heat Belt STS Rear Disconnection Fault. The open circuit AD value of the Rear Thermistor was detected 3 times in a row.
• Troubleshooting Guides: • Turn the power Off and remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Measure the resistance between Fuser Assembly P600-A9 and P600-A10. Is the resistance infinite? Y↓ N→Check the following connections for open circuits, short circuits, and poor contacts. • Between DJ600-A3 and MCU PWB P/J431-9 • Between DJ600-A2 and MCU PWB P/J431-10 If no problems are found, replace the MCU PWB. Replace the Fuser Assembly.

• Code: 310.374
• Description: Heat Belt STS Rear Over Temperature Fault. The AD value of the Rear Thermistor was detected to be higher than the defined value 4 times in a row.
• Troubleshooting Guides: • Turn the power Off and remove the Fuser Assembly. Check whether foreign substances or paper is wound around the Heat Roll. • Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Check the following connections for short circuits and poor contacts. • Between DJ600-A3 and MCU PWB P/J431-9 • Between DJ600-A2 and MCU PWB P/J431-10 If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.375
• Description: Heat Belt STS Center Warm Up Time Fault. When transitioning from the Wait state, the specified Temperature is not reached within the specified time.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether IH Driver Input Low Voltage Fault has occurred. Has Fault 310.361 occurred? Y↓ N→Turn the power Off and check the following: • Remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • The connection between the DJ600-A4/A5 and the MCU PWB P/J431-8/7 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB Proceed to the 310.361 RAP.

• Code: 310.376
• Description: Heat Belt STS Rear Warm Up Time Fault. When transitioning from the Wait state, the specified Temperature is not reached within the specified time.
• Troubleshooting Guides: 1. Turn the power Off and On. If the error does not clear, continue to step 2. 2. Turn the power Off and check the following: • Remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • The connection between the DJ600-A2/A3 and the MCU PWB P/J431-10/9 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.377
• Description: Fuser On Time Fault. When in Ready or Standby states, the temperature monitor value of the Rear Thermistor did not reach the specified temperature within the specified time after the IH power had turned On.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the following: • Remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • The connection between the DJ600-A2/A3 and the MCU PWB P/J431-10/9 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.378
• Description: Heat Belt Rotation Fault. The Belt Speed Sensor output has not changed for 500ms or longer after the Fuser Motor On.
• Troubleshooting Guides: 1. Turn the power Off and On. If the error does not clear, continue to step 2. 2. Turn the power Off and check the following: • Remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • The connection between the DJ600-B7/B6/B5 and the MCU PWB P/J431-12/13/14 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.379
• Description: Fuser Hot Not Ready Return Time Fault. The time taken to recover from High Temperature Not Ready state has exceeded the specified time.
• Troubleshooting Guides: 1. Turn the power Off and On. If the error does not clear, continue to step 2. 2. Turn the power Off and check the following: • Remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Inspect the connection between the Fuser Assembly DJ600 and the MCU PWB P/ J431 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB

• Code: 310.380
• Description: P/Roll Latch Motor Fault. When in the P/Roll Contact/Retract operation, the Latch Position Sensor detected a Latch position error of the P/Roll.
• Troubleshooting Guides: • Turn the power Off and check whether the Fuser Assembly is installed properly. • Remove the Fuser Assembly and check the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [010-009] (P/Roll Latch On) and DC330 [010-010] (P/Roll Latch Off) alternately. Does the Latch Motor rotate? Y↓ N→Is the voltage between the MD PWB P/J520-9 (+) and the GND +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Latch Motor wire wound resistance. Disconnect the Latch Motor P/J254, then measure the following resistances. • Between Latch Motor P/J254 pin-2 and P/J254 pin-6 • Between Latch Motor P/J254 pin-1 and P/J254 pin-5 Is the resistance approx. 5.7 Ohm for each? (At 25° C / 77° F) Y↓ N→Replace the Fuser Assembly. Measure the resistance between the disconnected connector P/J254-1/2/5/6 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB Press the Stop button. Turn On dc330 Component Control [010-009] (P/Roll Latch On) and DC330 [010-202] (P/Roll Latch Sensor), as well as DC330 [010-010] (P/Roll Latch Off) and DC330 [010-202] (P/Roll Latch Sensor) alternately. Does the display change between Low/High? Y↓ N→Is the voltage between the MCU PWB P/J431-4 (+) and the GND +1.2VDC? Y↓ N→Press the Stop button and turn the power Off. Remove the Fuser Assembly and check the connection between the DJ600-A8/A7 and the MCU PWB P/J431-4/5 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB Press the Stop button and turn the power Off. Remove the Fuser Assembly and check the connection between the DJ600-A6 and the MCU PWB P/J431-6 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Fuser Assembly • MCU PWB Turn the power Off and check the Latch Motor Gear for wear or damage. If no problems are found, replace the following parts in sequence: • MCU PWB • MD PWB

• Code: 310.381
• Description: Fuser Assy Illegal Fault. A different type of Fuser Assembly (rapid heating/accumulative heating) was installed.
• Troubleshooting Guides: 1. Turn the power Off and On. If the error does not clear, continue to step 2. 2. Turn the power Off and replace with the correct Fuser Assembly.

• Code: 310.382
• Description: Fuser Thermostat Fault. The Fuser Assembly Thermostat is broken.
• Troubleshooting Guides: • Turn the power Off and remove the Fuser Assembly. Inspect the Drawer Connector between the Fuser Assembly and the Main Unit ( DJ600) for broken/bent pins, foreign substances, burns, and etc. • Check whether the MCU PWB connector P/J431 is connected properly.
  Measure the resistance between P600 pin-A11 and P600 pin-B9. Is the resistance infinite? Y↓ N→Check the following connections for open circuits, short circuits, and poor contacts. • Between DJ600-A1 and MCU PWB P/J431-11 • Between DJ600-B1 and MCU PWB P/J431-18 If no problems are found, replace the MCU PWB. Replace the Fuser Assembly.

• Code: 310.398
• Description: Fuser Fan Fault. The Fuser Fan error was detected.
• Troubleshooting Guides: Rotate the Fuser Fan manually to check for loading.
  Enter dc122 Fault History. Has 041-350 faults (MD PWB F7 Open) occurred? Y↓ N→Enter Service Diagnostics menu (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Fuser Fan rotating and does the test return a fuser fan error? Y↓ N→Turn the power Off and check the connection between the Fuser Fan P/J230-4/3/1 and the MD PWB P/J524-10/11/13 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Fuser Fan • MD PWB • MCU PWB Replace the Fuser Fan. Press the Stop button and turn the power Off. Check the connection between the Fuser Fan P/J230-2 and the MD PWB P/J524-12 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB Go to the 341.350 RAP.

• Code: 310.420
• Description: Fuser Assembly Near Life Warning The Fuser Assembly is near the end of its life span.
• Troubleshooting Guides: Replace the Fuser Assembly with a new one and clear dc135 CRU/HFSI Read & Reset [954-850]. If the problem persists, replace the MCU PWB.

• Code: 310.421
• Description: Fuser Assembly Life Over Warning. The Fuser Assembly has reached the end of its life span.
• Troubleshooting Guides: Replace the Fuser Assembly with a new one and clear dc135 CRU/HFSI Read & Reset [954-850]. If the problem persists, replace the MCU PWB.

• Code: 312.111
• Description: H-Transport Entrance Sensor Off Jam A. The H-Transport Entrance Sensor did not turn off within the specified time after it turned on.
• Troubleshooting Guides: Check the H-Transport Drive Rolls (PL 23.4) and Pinch Rolls (PL 23.3) for wear or contamination. Check for obstructions or damage in the paper path. The Paper Path is OK. Y↓ N→Clean or replace as required. Execute dc330 Component Control [012-190], H-Transport Entrance Sensor. Actuate the HTransport Entrance Sensor (PL 23.4). The display changes. Y↓ N→Check the wire between P/J8861 pin 2 and J8897 pin 6 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8897, pins 4 and 5 on the Finisher PWB (Horizontal Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8897, pin 6 on the Finisher PWB and GND (Horizontal Paper Transportation). Actuate the H-Transport Entrance Sensor. The voltage changes. Y↓ N→Replace the H-Transport Entrance Sensor (PL 23.4). Replace the Finisher PWB. Power Off the printer. Open the H-Transport Top Cover. Cheat the H-Transport Interlock Sensor. Power On the printer. The H-Transport Belt rotates. Y↓ N→Check the wires between P/J8862 on the H-Transport Motor and J8897 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the resistance of the H-Transport Motor between each pin P/J8862-1/2/5/6 (Horizontal Paper Transportation). The resistance is approx. 20 Ohm. Y↓ N→Replace the H-Transport Motor. Replace the Finisher PWB. If the problem persists, replace the H-Transport Motor. Check the H-Transport Entrance Sensor and H-Transport Motor circuits for an intermittent condition. If the problem continues, replace the Finisher PWB.

• Code: 312.112
• Description: H-Transport Entrance Sensor On Jam A. After the Fuser Exit Sensor turned on, the H-Transport Entrance Sensor did not turn on within the specified time.
• Troubleshooting Guides: Check the H-Transport Drive Rolls (PL 23.4) and Pinch Rolls (PL 23.3) for wear or contamination. Check for obstructions or damage in the paper path. The Paper Path is OK. Y↓ N→Clean or replace as required. Execute dc330 Component Control [012-190], H-Transport Entrance Sensor. Actuate the HTransport Entrance Sensor (PL 23.4). The display changes. Y↓ N→Check the wire between P/J8861 pin 2 and P8987 pin 6 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P8987, pins 4 and 5 on the Finisher PWB (Horizontal Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P8987, pin 6 on the Finisher PWB and GND (Horizontal Paper Transportation). Actuate the H-Transport Entrance Sensor. The voltage changes. Y↓ N→Replace the H-Transport Entrance Sensor (PL 23.4). Replace the Finisher PWB. Power Off the printer. Open the H-Transport Top Cover. Cheat the H-Transport Interlock Sensor. Power On the printer. The H-Transport Belt rotates. Y↓ N→Check the wires between P/J8862 on the H-Transport Motor and P8987 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the resistance of the H-Transport Motor between each pin P/J8862-1/2/5/6 (Horizontal Paper Transportation). The resistance is approx. 20 Ohm. Y↓ N→Replace the H-Transport Motor. Replace the Finisher PWB. If the problem persists, replace the H-Transport Motor. Check the H-Transport Entrance Sensor and H-Transport Motor circuits for an intermittent condition. If the problem continues, replace the Finisher PWB.

• Code: 312.112
• Description: H-Transport Entrance Sensor On Jam. H-Transport Entrance Sensor is not turned on within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check the H-Transport Motor Belt for wear or damage. • Check the Guides on the H-Transport Cover for damage, wear or faulty installation.
  Enter dc330 Component Control [012-190], H-Transport Entrance Sensor (PL 24.4 Item 12). Select Start. Open the H-Transport Cover and actuate the H-Transport Entrance Sensor. The display changes. Y↓ N→Go to Finisher Horizontal Transportation (1 of 2). Check the circuit of the HTransport Entrance Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-090], H-Transport Motor (PL 24.6 Item 22). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the HTransport Motor. Refer to the Transmissive Sensor for troubleshooting procedure. Select Stop. Close the H-Transport Cover. Select [012-086] or [012-087], Gate Solenoid (PL 24.41 Item 37). Select Start. The Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the H-Transport Entrance Sensor (PL 24.4 Item 12). If the problem persists, replace the Finisher Main PWB.

• Code: 312.113
• Description: Booklet In Sensor On Jam. The Booklet In Sensor did not turn on within the specified time after Punch Out Sensor On.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the Booklet In Sensor (PL 24.57 Item 5) for obstructions. • Check for transportation failure of non-standard paper. • Check the Booklet In Roll for wear or damage.
  Enter dc330 Component Control [013-135], Booklet In Sensor (PL 24.57 Item 5). Select Start. Actuate the Booklet In Sensor. The display changes. Y↓ N→Go to Booklet Transportation. Check the circuit of the Booklet In Sensor. Refer to the Transmissive Sensor for troubleshooting procedure. Select [013-068] and/or [013-069], Booklet Gate Solenoid (PL 24.42 Item 9). Select Start. The Booklet Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check the circuit of the Booklet Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [012-001], Finisher Transport Motor (PL 24.41 Item 26). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the Finisher Transport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or alignment. • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Booklet In Sensor (PL 24.57 Item 5). If the problem persists, replace the Finisher Main PWB.

• Code: 312.114
• Description: Booklet In Sensor Off Jam. The Booklet In Sensor did not turn off within the specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the Booklet In Sensor (PL 24.57 Item 5) for obstructions. • Check for transportation failure of non-standard paper. • Check the Booklet In Roll for wear or damage.
  Enter dc330 Component Control [013-135], Booklet In Sensor (PL 24.57 Item 5). Select Start. Actuate the Booklet In Sensor. The display changes. Y↓ N→Go to Booklet Transportation. Check the circuit of the Booklet In Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [013-068] and/or [013-069], Booklet Gate Solenoid (PL 24.42 Item 9). Select Start. The Booklet Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check the circuit of the Booklet Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [013-064], Booklet Paper Path Motor (PL 24.58 Item 4). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check the circuit of the Booklet Paper Path Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or alignment. • Check the Booklet Paper Path Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Booklet In Sensor (PL 24.57 Item 5). If the problem persists, replace the Finisher Main PWB.

• Code: 312.115
• Description: Booklet Folder Roll Exit Sensor On Jam. Booklet Folder Roll Exit Sensor is not turned off within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the Booklet Folder Roll Exit Sensor (PL 24.57 Item 21) for obstructions. • Check for transportation failure of non-standard paper. • Check the Booklet Folding Roll for wear or damage. • Check the Booklet Eject Roll Drive rolls for wear or damage.
  Enter dc330 Component Control [013-103], Booklet Folder Roll Exit Sensor (PL 24.57 Item 21). Select Start. Actuate the Booklet Folder Roll Exit Sensor. The display changes. Y↓ N→Go to Booklet Transportation. Check the circuit of the Booklet Folder Roll Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [013-064], Booklet Paper Path Motor (PL 24.58 Item 4). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check the circuit of the Booklet Paper Path Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [013-008], Booklet Folder Roll Motor (PL 24.58 Item 2). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check the circuit of the Booklet Folder Roll Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Booklet Paper Path Motor and its associated gears and belts for damage, contamination or alignment. • Check the Booklet Folder Roll Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Booklet Folder Roll Exit Sensor (PL 24.57 Item 21). If the problem persists, replace the Finisher Main PWB.

• Code: 312.123
• Description: H-Transport Exit Sensor On Jam. H-Transport Exit Sensor is not turned on within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the H-Transport Motor Belt for wear or damage. • Check the Guides on the H-Transport Cover for damage, wear or faulty installation.
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor (PL 24.6 Item 8). Select Start. Open the H-Transport Cover and actuate the H-Transport Exit Sensor. The display changes. Y↓ N→Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the HTransport Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-090], H-Transport Motor (PL 24.6 Item 22). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the HTransport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Close the H-Transport Cover. Select [012-086] or [012-087], H-Transport Gate Solenoid (PL 24.2). Select Start. The Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the H-Transport Exit Sensor (PL 24.6 Item 8). If the problem persists, replace the Finisher Main PWB.

• Code: 312.124
• Description: H-Transport Top Tray Exit Sensor Off Jam. H-Transport Top Tray Exit Sensor is not turned off within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the H-Transport Motor Belt for wear or damage. • Check the Guides on the H-Transport Cover for damage, wear or faulty installation.
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor (PL 24.6 Item 8). Select Start. Open the H-Transport Cover and actuate the H-Transport Exit Sensor. The display changes. Y↓ N→Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the HTransport Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Select [012-090], H-Transport Motor (PL 24.6 Item 22). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the HTransport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Close the H-Transport Cover. Select [012-086] or [012-087], H-Transport Gate Solenoid (PL 24.2). Select Start. The Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the H-Transport Exit Sensor (PL 24.6 Item 8). If the problem persists, replace the Finisher Main PWB.

• Code: 312.125
• Description: Gate Sensor On Jam. Gate Sensor is not turned on within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check the Finisher Drive Motor Gears and Drive rolls for wear or damage.
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor. Select Start. Open the H-Transport Cover and actuate the H-Transport Exit Sensor. The display changes. Y↓ N→Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the HTransport Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Enter dc330 Component Control [012-102], Gate Sensor (PL 24.43 Item 19). Select Start. Actuate the Gate Sensor. The display changes. Y↓ N→Go to Finisher Transport, Top Tray Gating. Check the circuit of the Gate Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-001], Finisher Transport Motor 1 Speed (PL 24.41). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Finisher Transport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Finisher is docked properly. • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the Gate Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.132
• Description: Transport Entrance Sensor On Jam. Transport Entrance Sensor is not turned on within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation.
  Enter dc330 Component Control [012-100], Transport Entrance Sensor (PL 24.41 Item 19). Select Start. Actuate the Transport Entrance Sensor. The display changes. Y↓ N→Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Entrance Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-001], Finisher Transport Motor 1 Speed (PL 24.41). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives. Check the circuit of the Finisher Transport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or alignment. • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Transport Entrance Sensor (PL 24.41 Item 19). If the problem persists, replace the Finisher Main PWB.

• Code: 312.142
• Description: Buffer Path Sensor On Jam. Buffer Path Sensor is not turned on within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check the Finisher Transport Motor Belt, Gears and Drive Rolls for wear or damage.
  Enter dc330 Component Control [012-101], Buffer Path Sensor (PL 24.41 Item 10). Select Start. Actuate the Buffer Path Sensor. The display changes. Y↓ N→Go to Finisher Buffer Transport. Check the circuit of the Buffer Path Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-001], Finisher Transport Motor 1 Speed (PL 24.41). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives. Check the circuit of the Finisher Transport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-015] and/or [012-016], Buffer Gate Solenoid. Select Start. The Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Buffer Transport. Check the circuit of the Buffer Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Buffer Rolls for obstructions. • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the Buffer Path Sensor (PL 24.41 Item 10). If the problem persists, replace the Finisher Main PWB.

• Code: 312.151
• Description: Compiler Exit Sensor Off Jam. After the Compiler Exit Sensor turned On, the Compiler Exit Sensor did not turn Off within the specified time.
• Troubleshooting Guides: Execute dc330 Component Control [012-150], Compiler Exit Sensor. Actuate the Compiler Exit Sensor (PL 23.14). The display changes. Y↓ N→Check the wire between J8869 pin 2 and P/J8988 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 6 and 4 on the Finisher PWB (Finisher Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 5 on the Finisher PWB and GND (Finisher Paper Transportation). Actuate the Compiler Exit Sensor. The voltage changes. Y↓ N→Replace the Compiler Exit Sensor (PL 23.14). Replace the Finisher PWB. Execute dc330 Component Control [012-038], Transport Motor. The Transport Motor rotates. Y↓ N→Check the wires between P/J8879 on the Transport Motor and P/J8893 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the resistance of the Transport Motor between each pin J8879-1/2/5/6 (Finisher Paper Transportation). The resistance is approx. 20 Ohm. Y↓ N→Replace the Transport Motor. Replace the Finisher PWB. If the problem persists, replace the Transport Motor. Check the Exit Roller, Paddle Shaft and Eject Belt for wear, damage or contamination (PL 23.13). Check the Compiler Exit Sensor and Transport Motor circuits for an intermittent condition. If the problem continues, replace the Finisher PWB.

• Code: 312.151
• Description: Compiler Exit Sensor Off Jam. The Compiler Exit Sensor did not turn Off within the specified time after Compiler Exit Sensor On.
• Troubleshooting Guides: • Check the Buffer Reverse Roll for wear or damage. • Check the Compile Exit Roll for wear or damage. • Check for paper transportation failure due to a foreign substance/burr on the paper path. • Check for transportation failure of non-standard paper.
  Enter dc330 Component Control [012-150], Compiler Exit Sensor (PL 24.36 Item 3). Select Start. Actuate the Compiler Exit Sensor. The display changes. Y↓ N→Go to Finisher Compiling Check the circuit of the Compiler Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Select [012-011] or [012-012], Transport Gate Solenoid (PL 24.41 Item 37), and Select Start. The Transport Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Select [012-015] or [012-016], Buffer Gate Solenoid (PL 24.41 Item 39), and Select Start. The Buffer Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Buffer Transport. Check the circuit of the Buffer Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [012-007], Exit Motor (PL 24.43 Item 7). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives. Check the circuit of the Exit Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Check the Exit Motor and its associated gears and belts for damage, contamination or tension If the above checks are OK, then replace the Compiler Exit Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.152
• Description: Compiler Exit Sensor On Jam. After the H-Transport Exit Sensor turned On, the Compiler Exit Sensor did not turn On within the specified time.
• Troubleshooting Guides: Execute dc330 Component Control [012-150], Compiler Exit Sensor. Actuate the Compiler Exit Sensor (PL 23.14). The display changes. Y↓ N→Check the wire between J8869 pin 2 and P/J8988 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 6 and 4 on the Finisher PWB (Finisher Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 5 on the Finisher PWB and GND (Finisher Paper Transportation). Actuate the Compiler Exit Sensor. The voltage changes. Y↓ N→Replace the Compiler Exit Sensor (PL 23.14). Replace the Finisher PWB. Execute dc330 Component Control [012-038], Transport Motor. The Transport Motor rotates. Y↓ N→Check the wires between P/J8878 on the Transport Motor and P/J8893 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the resistance of the Transport Motor between each pin P/J8879-1/2/5/6 (Finisher Paper Transportation). The resistance is approx. 20 Ohm. Y↓ N→Replace the Transport Motor. Replace the Finisher PWB. If the problem persists, replace the Transport Motor. Check the Exit Roller, Entrance Roller, Paddle Shaft and Eject Belt for wear, damage or contamination (PL 23.13). Check the Compiler Exit Sensor and Transport Motor circuits for an intermittent condition. If the problem continues, replace the Finisher PWB.

• Code: 312.152
• Description: Compiler Exit Sensor On Jam. Not in the Punch mode: The Compiler Exit Sensor did not turn On within the specified time after Punch Out Sensor On. In Punch mode: The Compiler Exit Sensor did not turn On within the specified time after the punching operation had begun.
• Troubleshooting Guides: • Check the Buffer Roll for wear or damage. • Check the Compile Exit Roll for wear or damage. • Check for paper transportation failure due to a foreign substance/burr on the paper path. • Check for transportation failure of non-standard paper.
  Enter dc330 Component Control [012-150], Compiler Exit Sensor (PL 24.36 Item 3). Select Start. Actuate the Compiler Exit Sensor. The display changes. Y↓ N→Go to Finisher Compiling. Check the circuit of the Compiler Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Select [012-015] or [012-016], Buffer Gate Solenoid (PL 24.41 Item 39), and Select Start. The Buffer Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Buffer Transport. Check the circuit of the Buffer Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Select [012-011] or [012-012], Transport Gate Solenoid (PL 24.41 Item 37). Select Start. The Transport Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [012-007], Exit Motor (PL 24.43 Item 7). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives. Check the circuit of the Exit Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Check the Exit Motor and its associated gears and belts for damage, contamination or tension If the above checks are OK, then replace the Compiler Exit Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.161
• Description: Finisher Set Eject Jam. After the Eject Motor turned On, the Compiler Tray No Paper Sensor did not turn Off within the specified time.
• Troubleshooting Guides: Enter dc330 Component Control [012-151], Compiler Tray No Paper Sensor. Select Start. Actuate the Compiler Tray No Paper Sensor. The display changes. Y↓ N→Check the wire between J8880 pin 2 and J8894 pin 2 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8894 pins 3 and 1 on the Finisher PWB (Set Eject Control (1 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8894 pin 2 on the Finisher PWB and GND (Tamping Control (2 of 2)). Actuate the Compiler Tray No Paper Sensor. The voltage changes. Y↓ N→Replace the Compiler Tray No Paper Sensor (PL 23.12). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-054 Eject Motor FORWARD LO] and dc330 Component Control [012-055 Eject Motor FORWARD HI]. The Eject Motor starts up. Y↓ N→Check the wires between P/J8878 on the Eject Motor and P/J8893 on the Finisher PWB (Set Eject Control (1 of 2)) for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the resistance of the Eject Motor between each point of P/J8878-1/3/4/6 (Set Eject Control (1 of 2)). The resistance is approx. 20 Ohm. Y↓ N→Replace the Eject Motor. Replace the Eject Motor. If the problem persists, replace the Finisher PWB (PL 23.16). Check the Exit Roller, Entrance Roller, Paddle Shaft and Eject Belt for wear, damage or contamination (PL 23.13). Check the Compiler Tray No Paper Sensor and Eject Motor circuits for an intermittent condition. If the problem continues, replace the Finisher PWB.

• Code: 312.161
• Description: Set Eject Jam. The Compiler Exit Sensor did not turn off within the specified time after the Eject operation has begun.
• Troubleshooting Guides: • Check the Buffer Reverse Roll for wear or damage. • Check the Compile Exit Roll for wear or damage. • Check for paper transportation failure due to a foreign substance/burr on the paper path. • Check for transportation failure of non-standard paper.
  Enter dc330 Component Control [012-150], Compiler Exit Sensor (PL 24.36 Item 3). Select Start. Actuate the Compiler Exit Sensor. The display changes. Y↓ N→Go to Finisher Compiling Check the circuit of the Compiler Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-007] Exit Motor (PL 24.43 Item 7). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives. Check the circuit of the Exit Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-011] or [012-012], Transport Gate Solenoid (PL 24.41 Item 37). Select Start. The Transport Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Exit Motor and its associated gears and belts for damage, contamination or tension. If the above checks are OK, then replace the Compiler Exit Sensor (PL 24.36 Item 3). If the problem persists, replace the Finisher Main PWB.

• Code: 312.162
• Description: H-Transport Exit Sensor On Jam. H-Transport Exit Sensor is not turned On within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the H-Transport Motor Belt for wear or damage. • Check the Guides on the H-Transport Cover for damage, wear or faulty installation. • Check the Fuser Exit Switch actuator for damage, installed properly, or actuator spring damaged or missing.
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor (PL 24.6 Item 8). Select Start. Open the H-Transport Cover and actuate the H-Transport Exit Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the H-Transport Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-090], H-Transport Motor (PL 24.6 Item 21). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the HTransport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the H-Transport Exit Sensor (PL 24.6 Item 8). If the problem persists, replace the Finisher Main PWB.

• Code: 312.171
• Description: Top Tray Exit Sensor On Jam. Not in the Punch mode: The Top Tray Exit Sensor did not turn on within the specified time after Punch Out Sensor on. In Punch mode: The Top Tray Exit Sensor did not turn on within the specified time after the punching operation had begun.
• Troubleshooting Guides: • Check Top Tray Exit for operation failure. • Check paper transportation failure due to a foreign substance/burr on the paper path. • Check transportation failure of non-standard paper.
  Enter dc330 Component Control [012-115], Top Tray Exit Sensor (PL 24.36 Item 3). Select Start. Actuate the Top Tray Exit Sensor. The display changes. Y↓ N→Go to Finisher Top Tray Stacking Check the circuit of the Top Tray Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-007], Exit Motor (PL 24.43 Item 7). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives Check the circuit of the Exit Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-011] or [012-012], Transport Gate Solenoid (PL 24.41 Item 37). Select Start. The Transport Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [012-001], Finisher Transport Motor (PL 24.41 Item 26). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives Check the circuit of the Finisher Transport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Exit Motor and its associated gears and belts for damage, contamination or misalignment. • Exit Drive Shaft for wear and a revolution failure • The Exit Pinch Rolls for wear and/or damage If the above checks are OK, then replace the Top Tray Exit Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.172
• Description: Top Tray Exit Sensor Off Jam. Top Tray Exit Sensor Off was not detected at the rear edge of paper within the specified time after Punch Out Sensor detected at the leading edge of the same paper. Top Tray Exit Sensor Off was not detected at the rear edge of paper within the specified time after the punching operation had begun.
• Troubleshooting Guides: • Check Top Tray Exit for operation failure. • Check paper transportation failure due to a foreign substance/burr on the paper path. • Check transportation failure of non-standard paper.
  Enter dc330 Component Control [012-115], Top Tray Exit Sensor (PL 24.36 Item 3). Select Start. Actuate the Top Tray Exit Sensor. The display changes. Y↓ N→Go to Finisher Transport, Top Tray Gating. Check the circuit of the Top Tray Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-007], Exit Motor (PL 24.43 Item 7). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher Drives. Check the circuit of the Exit Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-011] or [012-012], Transport Gate Solenoid (PL 24.41 Item 37). Select Start. The Transport Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [012-001], Finisher Transport Motor (PL 24.41 Item 26). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Finisher H-Transport Drives. Check the circuit of the Finisher Transport Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Exit Motor and its associated gears and belts for damage, contamination or misalignment. • Exit Drive Shaft for wear and a revolution failure • The Exit Pinch Rolls for wear and/or damage If the above checks are OK, then replace the top Tray Exit Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.180
• Description: Booklet Folder Roll Exit Sensor Off Jam. Booklet Folder Roll Exit Sensor is not turned off within a specified time.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check the Booklet Folder Roll Exit Sensor (PL 24.57 Item 21) for obstructions. • Check for transportation failure of non-standard paper. • Check the Booklet Folding Roll for wear or damage. • Check the Booklet Eject Roll Drive rolls for wear or damage.
  Enter dc330 Component Control [013-103], Booklet Folder Roll Exit Sensor (PL 24.57 Item 21). Select Start. Actuate the Booklet Folder Roll Exit Sensor. The display changes. Y↓ N→Go to Booklet Transportation. Check the circuit of the Booklet Folder Roll Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [013-064], Booklet Paper Path Motor (PL 24.58 Item 4). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check the circuit of the Booklet Paper Path Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [013-008], Booklet Folder Roll Motor (PL 24.58 Item 4). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check the circuit of the Booklet Folder Roll Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Booklet Paper Path Motor and its associated gears and belts for damage, contamination or alignment. • Check the Booklet Folder Roll Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Booklet Folder Roll Exit Sensor (PL 24.57 Item 21). If the problem persists, replace the Finisher Main PWB.

• Code: 312.210
• Description: NVM Fail. NVM error has occurred.
• Troubleshooting Guides: Check any of the following cases. Check the continuity from J8889 pin 3 on the Finisher PWB to P/J590 pin 9 on the MD PWB. Is there continuity? Y↓ N→Repair or replace the wiring. Replace the finisher PWB.

• Code: 312.211
• Description: Stacker Tray Fault. Stack Height Sensor 1 is not On within the specified time after stacker tray starts elevating. While Stacker Tray is elevating or lowering, the state of the Encoder Sensor does not change within the specified time.
• Troubleshooting Guides: • Check for obstructions under the tray. • Check the operation of the Stacker Height Sensor 1 actuator. • Check the tray raise/lower mechanism for damage or contamination.
  Execute dc330 Component Control [012-264], Stacker Height Sensor 1. Actuate the Stacker Height Sensor 1. The display changes. Y↓ N→Check the wire between J8873 pin 2 and P/J8988 pin 17 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 16 and 18 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 17 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 1. Replace the Finisher PWB. Execute dc330 Component Control [012-263], Stacker Encoder Sensor. Manually rotate the Encoder (PL 23.7) to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8874 pin 2 and P/J8988 pin 23 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 22 and 24 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 23 on the Finisher PWB and GND (Stacker Tray Control). Manually rotate the Encoder (PL 23.7) to block and unblock the Stacker Encoder Sensor. The voltage changes. Y↓ N→Replace the Stacker Encoder Sensor (PL 23.7). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-060], Stacker Motor Up, and [012-061], Stacker Motor Down. The Stacker Motor (PL 23.7) Moves. Y↓ N→There is +24 VDC from P/J8986 pin 12 to GND (Stacker Tray Control) Y↓ N→Go to Finisher Interlock Switching and check the circuit of the Option Switch (PL 23.9). Repair/reconnect as required. Check the wires between P/J8986 pins 11 and 12, and the Stacker Motor for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Replace the Stacker Elevator Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.211
• Description: Stacker Tray Fault. The Stack Height Sensor did not turn Off in 500msec after the Stacker Tray started to drive down. The Tray Height Sensor Lower did not turn On in 5000msec after the Stacker Tray started lifting up.
• Troubleshooting Guides: • The Stack Height Sensor for improper installation. • The Stack Height Sensor connectors for connection failure. • The Tray Height Sensor Lower for improper installation. • The Tray Height Sensor Lower connectors for connection failure. • The Elevator Motor for operation failure. • The Elevator Motor connectors for connection failure. • The Elevator Gear for deformation.
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor Up (PL 24.31 Item 26), alternately. Select Start. The Elevator Motor runs. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.212
• Description: Stacker Tray Upper Limit Fault. The stacker has continued to elevate after the defined period of time has passed since Stacker No Paper Sensor is ON during stacker elevation.
• Troubleshooting Guides: • Check for obstructions under the tray. • Check the operation of the Stacker Height Sensor actuators. • Check the tray raise/lower mechanism for damage or contamination.
  Execute dc330 Component Control [012-264], Stacker Height Sensor 1. Actuate the Stacker Height Sensor 1. The display changes. Y↓ N→Check the wire between J8873 pin 2 and P/J8988 pin 17 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 16 and 18 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 17 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 1. Replace the Finisher PWB. Execute dc330 Component Control [012-265], Stacker Height Sensor 2. Block and unblock the Stacker Height Sensor 2. The display changes. Y↓ N→Check the wire between J8874 pin 2 and P/J8988 pin 20 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 19 and 21 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 20 on the Finisher PWB and GND (Stacker Tray Control).Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 2. Replace the Finisher PWB. Execute dc330 Component Control [012-263], Stacker Encoder Sensor. Manually rotate the Encoder (PL 23.7) to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8875 pin 2 and P/J8988 pin 23 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 22 and 24 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 3 on the Finisher PWB and GND (Stacker Tray Control). Manually rotate the Encoder (PL 23.7) to block and unblock the Stacker Encoder Sensor. The voltage changes. Y↓ N→Replace the Stacker Encoder Sensor (PL 23.7). Replace the Finisher PWB. Execute dc330 Component Control [012-262], Stacker No Paper Sensor. Block and unblock the Sensor (PL 23.7). The display changes. Y↓ N→Check the wire between J8872 pin 2 and P/J8988 pin 14 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 13 and 15 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 14 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker No Paper Sensor. The voltage changes. Y↓ N→Replace the Stacker No Paper Sensor (PL 23.7). Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.212
• Description: Stacker Upper Limit Fault. When Stack Height Sensor 2 On was detected after the Stacker Tray had started lifting up.
• Troubleshooting Guides: • The Upper Limit SW for improper installation. • The Upper Limit SW connectors for connection failure. • The Elevator Motor for operation failure. • The Elevator Motor connectors for connection failure.
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060], Elevator Motor UP (PL 24.31 Item 24), alternately. Select Start. The Elevator Motor runs. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-262], Stacker No Paper Sensor (PL 23.7 Item 32). Select Start. Block/unblock the Stacker No Paper Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Stacker No Paper Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Stacker No Paper Sensor (PL 23.7 Item 32). If the problem continues, replace the Finisher Main PWB. Select [012-260], Upper Limit Sensor (PL 24.31 Item 17). Block/unblock the Upper Limit Sensor. Select Start. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Upper Limit Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Upper Limit Sensor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.213
• Description: Stacker Tray Lower Limit Fault. Stacker descended lower than normal levels, below low limit height.
• Troubleshooting Guides: • Check for obstructions under the tray. • Check the operation of the Stacker Height Sensor actuators. • Check the tray raise/lower mechanism for damage or contamination.
  Height Sensor 1. The display changes. Y↓ N→Check the wire between J8873 pin 2 and P/J8988 pin 17 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 16 and 18 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 17 on the Finisher PWB and GND (Stacker Tray Control).Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 1 (PL 23.11). Replace the Finisher PWB. Execute dc330 Component Control [012-265], Stacker Height Sensor 2. Block and unblock the Stacker Height Sensor 2. The display changes. Y↓ N→Check the wire between J8874 pin 2 and P/J8988 pin 20 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 19 and 21 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 20 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 2 (PL 23.11). Replace the Finisher PWB. Execute dc330 Component Control [012-263], Stacker Encoder Sensor. Manually rotate the Encoder (PL 23.7) to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8875 pin 2 and P/J8988 pin 23 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 22 and 24 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 23 on the Finisher PWB and GND (Stacker Tray Control). Manually rotate the Encoder (PL 23.7) to block and unblock the Stacker Encoder Sensor. The voltage changes. Y↓ N→Replace the Stacker Encoder Sensor (PL 23.7). Replace the Finisher PWB. Execute dc330 Component Control [012-262], Stacker No Paper Sensor. Block and unblock the Sensor (PL 23.7). The display changes. Y↓ N→Check the wire between J8872 pin 2 and P/J8988 pin 14 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 13 and 15 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 14 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker No Paper Sensor. The voltage changes. Y↓ N→Replace the Stacker No Paper Sensor (PL 23.7). Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.213
• Description: Stacker Lower Limit Fault. When Lower Limit Sensor On was detected after the Stacker Tray had started driving down.
• Troubleshooting Guides: • The Upper Limit SW for improper installation • The Upper Limit SW connectors for connection failure • The Elevator Motor for operation failure • The Elevator Motor connectors for connection failure
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor Up (PL 24.31 Item 26), alternately. Select Start. The Elevator Motor runs. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.221
• Description: Front Tamper Home Sensor On Fault. After the Front Tamper started moving to the home position, the Front Tamper Home Sensor did not turn On within 800ms.
• Troubleshooting Guides: Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly. Y↓ N→Replace the parts that are interfering with operation. Execute dc330 Component Control [012-220], Front Tamper Home Sensor. Manually operate the Tamper mechanism to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8881 pin 2 and J8984 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984, pins 6 and 4 on the Finisher PWB (Tamping Control (2 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984, pin 5 on the Finisher PWB and GND (Tamping Control (2 of 2)). Manually operate the Tamper mechanism to block and unblock the Front Tamper Home Sensor. The voltage changes. Y↓ N→Replace the Front Tamper Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-020], Front Tamper Motor Front and [012- 023], Front Tamper Motor Rear. The Front Tamper Motor moves. Y↓ N→There is +24 VDC from J8984 pin 19 on the Finisher PWB to GND Y↓ N→There is +24 VDC from J8982 pin 4 on the Finisher PWB to GND Y↓ N→Go to Finisher Interlock Switching and check the +24V circuit feeding pin 4. Repair/reconnect as required. Replace the Finisher PWB. Check the wires between J8984, pins 18 ~ 22 on the Finisher PWB, and the Front Tamper Motor J8984 for an open or short circuit, or a loose or damaged connector. The wires are OK. Repair/reconnect as required. Replace the front Tamper Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.221
• Description: Front Tamper Home Sensor On Fault. The Front Tamper Home Sensor did not turn On within the specified time after the Tamper Motor had started running.
• Troubleshooting Guides: • The Front Tamper Actuator for deformation • The Front Tamper Home Sensor for proper installation • The Front Tamper Home Sensor connectors • The Front Tamper Motor for proper operation • The Front Tamper Motor connectors
  Enter dc330 Component Control [012-020] and [012-023], Front Tamper Motor (PL 24.35 Item 6), alternately. Select Start. The Front Tamper Motor runs. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Front Tamper Motor. Refer to Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-220], Front Tamper Home Sensor (PL 24.35 Item 2). Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Front Tamper Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.223
• Description: Front Tamper Home Sensor Off Fault. After the Front Tamper started moving away from the home position, the Front Tamper Home Sensor did not turn Off within the specified time.
• Troubleshooting Guides: Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly. Y↓ N→Replace the parts that are interfering with operation. Execute dc330 Component Control [012-220], Front Tamper Home Sensor. Manually operate the Tamper mechanism to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8881 pin 2 and J8984 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984, pins 6 and 4 on the Finisher PWB (Tamping Control (1 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984, pin 5 on the Finisher PWB and GND (Tamping Control (1 of 2). Manually operate the Tamper mechanism to block and unblock the Front Tamper Home Sensor. The voltage changes. Y↓ N→Replace the Front Tamper Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-020], Front Tamper Motor Front and [012- 023], Front Tamper Motor Rear. The Front Tamper Motor moves. Y↓ N→There is +24 VDC from J8984 pin 19 on the Finisher PWB to GND Y↓ N→There is +24 VDC from J8984 pin 4 on the Finisher PWB to GND Y↓ N→Go to Finisher Interlock Switching and check the +24V circuit feeding pin 4. Repair/reconnect as required. Replace the Finisher PWB. Check the wires between J8984, pins 18 ~ 22 on the Finisher PWB, and the Front Tamper Motor J8984 for an open or short circuit, or a loose or damaged connector. The wires are OK. Repair/reconnect as required. Replace the Front Tamper Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.223
• Description: Front Tamper Home Sensor Off Fault. Front Tamper Home Sensor is not turned off within a specified time. Front Tamper Home Sensor is not turned off after the stop following Front Tamper Home Sensor Off.
• Troubleshooting Guides: • The Front Tamper Actuator for deformation • The Front Tamper Home Sensor for proper installation • The Front Tamper Home Sensor connectors • The Front Tamper Motor for proper operation • The Front Tamper Motor connectors
  Enter dc330 Component Control [012-020] and [012-023], Front Tamper Motor (PL 24.35 Item 6), alternately. Select Start. The Front Tamper Motor runs. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Front Tamper Motor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Select [012-220], Front Tamper Home Sensor (PL 24.35 Item 2). Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Front Tamper Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.224
• Description: Rear Tamper Home Sensor Off Fault. After the Rear Tamper started moving away from the home position, the Rear Tamper Home Sensor did not turn Off within the specified time.
• Troubleshooting Guides: Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly. Y↓ N→Replace the parts that are interfering with operation. Execute dc330 Component Control [012-221], Rear Tamper Home Sensor. Manually operate the Tamper mechanism to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8882 pin 2 and J8984 pin 8 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984, pins 9 and 7 on the Finisher PWB (Tamping Control (2 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984, pin 8 on the Finisher PWB and GND (Tamping Control (2 of 2)). Manually operate the Tamper mechanism to block and unblock the Rear Tamper Home Sensor. The voltage changes. Y↓ N→Replace the Rear Tamper Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-026], Rear Tamper Motor Front and [012- 029], Rear Tamper Motor Rear. The Rear Tamper Motor moves. Y↓ N→There is +24 VDC from J8984 pin 19 on the Finisher PWB to GND Y↓ N→There is +24 VDC from J8982 pin 4 on the Finisher PWB to GND Y↓ N→Go to Finisher Interlock Switching and check the +24V circuit feeding pin 4. Repair/reconnect as required. Replace the Finisher PWB. Check the wires between J8984, pins 13 ~ 17 on the Finisher PWB, and the Rear Tamper Motor P/J8883 for an open or short circuit, or a loose or damaged connector. The wires are OK. Repair/reconnect as required. Replace the Rear Tamper Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.224
• Description: Rear Tamper Home Sensor Off Fault. Rear Tamper Home Sensor is not turned off within a specified time. Rear Tamper Home Sensor is not turned off after the stop following Rear Tamper Home Sensor Off.
• Troubleshooting Guides: • The Rear Tamper Actuator for deformation • The Rear Tamper Home Sensor for proper installation • The Rear Tamper Home Sensor connectors • The Rear Tamper Motor for proper operation • The Rear Tamper Motor connectors
  Enter dc330 Component Control [012-026] and [012-029], Rear Tamper Motor (PL 24.35 Item 7), alternately. Select Start. The Rear Tamper Motor runs. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Rear Tamper Motor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Select [012-221], Rear Tamper Home Sensor (PL 24.35 Item 2). Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Rear Tamper Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.225
• Description: Booklet Tamper F Home Sensor On Fault. Tamper Home Sensor Front is not turned on within 1000msec from motor On while Booklet Tamper Front is returning to Home.
• Troubleshooting Guides: • The Booklet Tamper Home Sensor Front for improper installation • The Booklet Tamper Home Sensor Front connectors for connection failure • The Booklet Tamper Motor Front connectors for connection failure • The Booklet Tamper Motor Front for improper installation • The gear part for wear or damage • The Booklet Tamper Front for deformation
  Enter dc330 Component Control [013-048] Booklet Tamper Motor F Rear 1 and dc330 Component Control [013-052], Booklet Tamper Motor Front (PL 24.55 Item 10), alternately. Select Start. The Booklet Tamper Motor Front energizes. Y↓ N→Select Stop. Go to Booklet Tamper Control (1 of 2). Check continuity between the Booklet Tamper Motor Front and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Tamper Motor Front (PL 24.55 Item 10). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-134], Booklet Tamper Home Sensor Front (PL 24.55 Item 7). Select Start. Block/unblock the Booklet Tamper Home Sensor Front. The display changes. Y↓ N→Select Stop. Go to Booklet Tamper Control (2 of 2). Check continuity between the Booklet Tamper Home Sensor Front and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Tamper Home Sensor Front (PL 24.55 Item 7). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.226
• Description: Booklet Tamper F Home Sensor Off Fault. Even when Booklet tamper Front motor outputs 75pulse, Tamper Front Home Sensor is not turned off.
• Troubleshooting Guides: • The Booklet Tamper Home Sensor Front for improper installation • The Booklet Tamper Home Sensor Front connectors for connection failure • The Booklet Tamper Motor Front connectors for connection failure • The Booklet Tamper Motor Front for improper installation • The gear part for wear or damage • The Booklet Tamper Front for deformation
  Enter dc330 Component Control [013-048] Booklet Tamper Motor F Rear 1 and dc330 Component Control [013-052], Booklet Tamper Motor Front (PL 24.55 Item 10), alternately. Select Start. The Booklet Tamper Motor Front energizes. Y↓ N→Select Stop. Go to Booklet Tamper Control (1 of 2). Check continuity between the Booklet Tamper Motor Front and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Tamper Motor Front (PL 24.55 Item 10). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-134], Booklet Tamper Home Sensor Front (PL 24.55 Item 7). Select Start. Block/unblock the Booklet Tamper Home Sensor Front. The display changes. Y↓ N→Select Stop. Go to Booklet Tamper Control (2 of 2). Check continuity between the Booklet Tamper Home Sensor Front and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Tamper Home Sensor Front (PL 24.55 Item 7). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.227
• Description: Booklet End Guide Home Sensor Off Fault. Even when Booklet End Guide motor outputs 200 pulse after the start, Booklet End Guide Home Sensor is not turned off.
• Troubleshooting Guides: • The Booklet End Guide Home Sensor for improper installation • The Booklet End Guide Home Sensor connectors for connection failure • The Booklet End Guide Motor connectors for connection failure • The Guide for deformation • The Guide for a foreign substance
  Enter dc330 Component Control [013-013] and [013-016], Booklet End Guide Motor (PL 24.53 Item 2), alternately. Select Start. The Booklet End Guide Motor energizes. Y↓ N→Select Stop. Go to Booklet End Guide Control. Check continuity between the Booklet End Guide Motor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet End Guide Motor (PL 24.53 Item 2). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-137] Booklet End Guide Home Sensor. Block/unblock the Booklet End Guide Home Sensor to the light with paper strip. Select Start. The display changes. Y↓ N→Select Stop. Go to Booklet End Guide Control Check continuity between the Booklet End Guide Home Sensor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet End Guide Home Sensor (PL 24.53 Item 7). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Check the following: • The Booklet End Guide Motor for proper installation • Booklet End Guide Belt for proper tension • Booklet End Guide Belt for wear or damage If the above checks are OK, replace the Finisher Main PWB.

• Code: 312.228
• Description: Booklet End Guide Home Sensor On Fault. Booklet End Guide Home Sensor is not turned on within 2000ms from motor On while Booklet End Guide is returning to Home.
• Troubleshooting Guides: • The Booklet End Guide Home Sensor for improper installation • The Booklet End Guide Home Sensor connectors for connection failure • The Booklet End Guide Motor connectors for connection failure • The Guide for deformation • The Guide for a foreign substance
  Enter dc330 Component Control [013-013] and [013-016], Booklet End Guide Motor (PL 24.53 Item 2), alternately. Select Start. The Booklet End Guide Motor energizes. Y↓ N→Select Stop. Go to Booklet End Guide Control. Check continuity between the Booklet End Guide Motor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet End Guide Motor (PL 24.53 Item 2). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Enter dc330 Component Control [013-137] Booklet End Guide Home Sensor. Select Start. Block/unblock the Booklet End Guide Home Sensor. The display changes. Y↓ N→Select Stop. Go to Booklet End Guide Control. Check continuity between the Booklet End Guide Home Sensor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet End Guide Home Sensor (PL 24.53 Item 7). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Check the following: • The Booklet End Guide Motor for proper installation • Booklet End Guide Belt for proper tension • Booklet End Guide Belt for wear or damage If the above checks are OK, replace the Finisher Main PWB.

• Code: 312.229
• Description: Booklet Tamper R Home Sensor On Fault. Tamper Home Sensor Rear is not turned on within 1000msec from motor On while Booklet Tamper Rear is returning to Home.
• Troubleshooting Guides: • The Booklet Tamper Home Sensor Rear for improper installation • The Booklet Tamper Home Sensor Rear connectors for connection failure • The Booklet Tamper Motor Rear connectors for connection failure • The Booklet Tamper Motor Rear for improper installation • The gear part for wear or damage • The Booklet Tamper Rear for deformation
  Enter dc330 Component Control [013-056] and dc330 Component Control [013-060], Booklet Rear Tamper Motor (PL 24.55 Item 9), alternately. Select Start. The Booklet Tamper Motor Rear energizes. Y↓ N→Select Stop. Go to Booklet Tamper Control (1 of 2). Check continuity between the Booklet Rear Tamper Motor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Rear Tamper Motor (PL 24.55 Item 9). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-136], Booklet Front Tamper Home Sensor (PL 24.55 Item 10). Select Start. Block/unblock the Booklet Tamper Home Sensor Front. The display changes. Y↓ N→Select Stop. Go to Booklet Tamper Control (2 of 2). Check continuity between the Booklet Rear Tamper Home Sensor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Tamper Home Sensor Rear (PL 24.55 Item 7). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.230
• Description: Booklet Tamper R Home Sensor Off Fault. Even when Booklet tamper Rear motor outputs 75pulse, Tamper Rear Home Sensor is not turned off.
• Troubleshooting Guides: • The Booklet Tamper Home Sensor Rear for improper installation • The Booklet Tamper Home Sensor Rear connectors for connection failure • The Booklet Tamper Motor Rear connectors for connection failure • The Booklet Tamper Motor Rear for improper installation • The gear part for wear or damage • The Booklet Tamper Rear for deformation
  Enter dc330 Component Control [013-056] and [013-060], Booklet Rear Tamper Motor (PL 24.55 Item 9), alternately. Select Start. The Booklet Tamper Motor Rear energizes. Y↓ N→Select Stop. Go to Booklet Tamper Control (1 of 2). Check continuity between the Booklet Rear Tamper Motor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Rear Tamper Motor (PL 24.55 Item 9). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-136], Booklet Tamper Home Sensor (PL 24.55 Item 10). Select Start. Block/unblock the Booklet Front Tamper Home Sensor. The display changes. Y↓ N→Select Stop. Go to Booklet Tamper Control (2 of 2). Check continuity between the Booklet Rear Tamper Home Sensor and the Booklet PWB and the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Rear Tamper Home Sensor (PL 24.55 Item 7). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.231
• Description: Punch Home Sensor On Fault. The Punch Home Sensor did not turn ON within the specified time after the Punch Motor started running.
• Troubleshooting Guides: • Punch Home Actuator for deformation • Punch Home Sensor for proper installation • Punch Home Sensor connectors • Punch Motor for proper operation • Punch Motor connectors
  Enter dc330 Component Control [12-074] and [12-078], Punch Motor (PL 23.5), alternately. Select Start. The Punch Motor runs. Y↓ N→Select Stop. Check circuit of the Punch Motor. Refer to (dc330 Component Control) to troubleshoot the Circuit. Select Stop. Select [12-271], Punch Home Sensor (PL 23.5). Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Go to dc330 Component Control. Check circuit of the Punch Home Sensor. Select Stop. If the problem continues, replace the Finisher PWB.

• Code: 312.231
• Description: Puncher Home Sensor On Fault. The Puncher Home Sensor did not turn On within the specified time after the Puncher Motor started running.
• Troubleshooting Guides: • The Puncher Home Actuator for deformation • The Puncher Home Sensor for proper installation • The Puncher Home Sensor connectors • The Puncher Motor for proper operation • The Puncher Motor connectors
  Enter dc330 Component Control [012-078] and [012-075], Puncher Move Motor (PL 24.32 Item 15), alternately. Select Start. The Puncher Motor runs. Y↓ N→Select Stop. Go to BSD 14 22 Finisher Punch Drive. Check circuit of the Punch Motor. Refer to Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-271], Puncher Move Home Sensor. Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Go to Finisher Punch Hole Control. Check circuit of the Puncher Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.232
• Description: Puncher Home Sensor Off Fault. The Puncher Home Sensor did not turn Off within 100 msec. after the Puncher Motor had started running.
• Troubleshooting Guides: • The Puncher Home Actuator for deformation • The Puncher Home Sensor for proper installation • The Puncher Home Sensor connectors • The Puncher Motor for proper operation • The Puncher Motor connectors
  Enter dc330 Component Control [012-078] and [012-075], Puncher Move Motor (PL 24.32 Item 15), alternately. Select Start. The Puncher Motor runs. Y↓ N→Select Stop. Go to BSD 14 22 Finisher Punch Drive. Check circuit of the Punch Motor. Refer to Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-271], Puncher Move Home Sensor. Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Select Stop. Go to Finisher Punch Hole Control. Check circuit of the Puncher Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.233
• Description: Puncher Move Home Sensor On Fault. Puncher Move Home Sensor is not turned On after the lapse of 400(300*500**)msec from operation start. Puncher Move Home Sensor is not turned on after the stop following Puncher Move Home Sensor On.
• Troubleshooting Guides: • The Actuator for deformation • The Puncher Move Home Sensor for improper installation • The Puncher Move Home Sensor connectors for connection failure • The Puncher Move Motor connectors for connection failure
  Enter dc330 Component Control [012-071] and [012-073], Puncher Move Motor (PL 24.32 Item 15), alternately. Select Start. The Puncher Move Motor energizes. Y↓ N→Select Stop. Go to BSD 14 22 Finisher Punch Drive. Check continuity between the Puncher Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Move Motor (PL 24.32 Item 15). If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-270], Puncher Move Home Sensor. Select Start. Block/ unblock the Puncher Move Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Punch Hole Control. Check continuity between the Puncher Move Home Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Move Home Sensor. If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • Puncher Move Motor rack and gear for binding, wear, or damage If the above check is OK, replace the Finisher Main PWB.

• Code: 312.234
• Description: Puncher Move Home Sensor Off Fault. Puncher Move Home Sensor not turned Off after the lapse of 1000 (100*) msec from operation start. Puncher Move Home Sensor is not turned off after the Stop following Puncher Move Home Sensor Off.
• Troubleshooting Guides: • The Actuator for deformation • The Puncher Move Home Sensor for improper installation. • The Puncher Move Home Sensor connectors for connecEnter dc330 Component Control [012-071] and [012-073], Puncher Move Motor (PL 24.32 Item 15), alternately. Select Start. The Puncher Move Motor run. Y↓ N→Select Stop. Go to BSD 14 22 Finisher Punch Drive. Check continuity between the Puncher Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Move Motor (PL 24.32 Item 15). If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-270], Puncher Move Home Sensor. Select Start. Block/ unblock the Puncher Move Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Punch Hole Control. Check continuity between the Puncher Move Home Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Move Home Sensor. If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • The Puncher Move Motor Belt for improper tension • The Puncher Move Motor Belt for disengagement If the above checks are OK, replace the Finisher Main PWB.tion failure • The Puncher Move Motor connectors for connection failure

• Code: 312.243
• Description: Booklet Folder Home Sensor On Fault. Folder Home Sensor is not turned on after the lapse of 500ms from Motor ON while Folder Knife is returning to Home.
• Troubleshooting Guides: • The Folder Home Sensor for improper installation • The Folder Home Sensor connectors for connection failure • The Folder Knife Motor connectors for connection failure • The Knife drive mechanism for a foreign substance
  Enter dc330 Component Control [013-022], Folder Knife Motor FWD and [013-023], Folder Knife Motor REV alternately. Select Start. The Fold Knife Motor energizes. Y↓ N→Select Stop. Refer to Folder Control. Check continuity between the Booklet Folder Knife Motor ( P/J8905) and the Finisher PWB ( J8985), and between the Booklet PWB ( P/J8994) and the Finisher PWB ( J8985). The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Folder Knife Motor (PL 23.15 Item 15). If the problem continues, replace the Booklet PWB. Select Stop. Enter dc330 Component Control [13-101], Folder Home Sensor. Select Start. Block/unblock the Folder Home Sensor. The display changed. Y↓ N→Check the wire between J8904 pin 2 and P/J8990 pin 2 on the FInisher PWB for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8990, pins 3 and 1 on the Finisher PWB (Folder Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8990, pin 2 on the Finisher PWB and GND (Folder Control). Block/unblock the Folder Home Sensor. The voltage changes. Y↓ N→Replace the Folder Home Sensor (PL 23.15 Item 16). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.243
• Description: Booklet Knife Home Sensor On Fault. Knife Home Sensor is not turned on after the lapse of 500ms from Clutch On while Booklet Knife is returning to Home.
• Troubleshooting Guides: Check the following: • The Knife Home Sensor for improper installation • The Knife Home Sensor connectors for connection failure • The Booklet Fold Motor connectors for connection failure • The Knife Clutch connectors for connection failure • The Knife Clutch for improper installation • The Knife drive mechanism for a foreign substance
  Manually move the Booklet Tamper to both ends. Enter dc330 Component Control [013-008] and [013-009], Booklet Folder Roll Motor (PL 24.58 Item 2), alternately. Select Start. The Booklet Folder Roll Motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check continuity between the Booklet Folder Roll Motor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Folder Roll Motor (PL 24.58 Item 2). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-010], Knife Solenoid, (PL 24.58 Item 10). Select Start. The Knife Solenoid actuates. Y↓ N→Select Stop. Go to Booklet Knife Control. Check continuity between the Knife Solenoid and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Knife Solenoid (PL 24.58 Item 10). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select [013-101], Booklet Knife Home Sensor (PL 24.54 Item 3). Select Start. Block/unblock the Knife Home Sensor. The display changed. Select Stop. Go to Booklet Knife Control. Check continuity between the Knife Home Sensor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Knife Home Sensor (PL 24.54 Item 3). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.246
• Description: Booklet Stapler Fault. Error signal On and Ready signal Off output from the Booklet Stapler were detected after Booklet Stapling operation. The Stapler Ready signal did not turn to ‘Not Ready’ within the specified time after Booklet Stapler Start signal On. Error signal On and Ready signal Off output from the Booklet Stapler were detected after Stapler Power On check was performed at Power On or when the interlock was closed. Error signal On was detected just before the Booklet Stapling operation.
• Troubleshooting Guides: Check continuity between the Staple and Booklet PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Go to Figure 1. Check continuity between the Booklet PWB and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler. The problem is resolved. Y↓ N→Replace the Booklet PWB (PL 24.51 Item 1). If the problem continues, replace the Finisher Main PWB. If the problem continues, replace the Finisher Main PWB.

• Code: 312.247
• Description: Side Registration Sensor Off Fault. Side Registration Sensor not turned off after the lapse of 500msec from operation start. Side Registration Sensor is not turned off after the stop following Side Registration Sensor Off. Target Side Registration Sensor1 or Side Registration Sensor2 is not turned off at operation start.
• Troubleshooting Guides: • The Actuator for deformation • The Side Reg 1 and 2 Sensors for improper installation • The Side Reg 1 and 2 Sensors connectors for connection failure • The Puncher Move Motor connectors for connection failure
  Enter dc330 Component Control [012-071] and [012-073], Puncher Move Motor (PL 24.32 Item 26), alternately. Select Start. The Puncher Move Motor run. Y↓ N→Select Stop. Go to BSD 14 22 Finisher Punch Drive. Check continuity between the Puncher Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Move Motor (PL 24.32 Item 26). If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-200], Side Registration 1 Sensor (PL 24.32 Item 10). Select Start. Block/unblock the Side Reg 1 Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check continuity between the Side Reg 1 Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Side Reg 1 Sensor (PL 24.32 Item 10). If the problem continues, replace the Finisher Main PWB. Select [012-201], Side Reg 2 Sensor (PL 24.32 Item 10). Select Start. Block/unblock the Side Reg 2 Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check continuity between the Side Reg 2 Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Side Reg 2 Sensor (PL 24.32 Item 10). If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • The Puncher Move Motor Belt for improper tension • The Puncher Move Motor Belt for disengagement If the above checks are OK, replace the Finisher Main PWB.

• Code: 312.249
• Description: Booklet Front Stapler Fault. The Booklet Front Staple Home Switch is not On (does not return to home position) within the specified time after the Booklet Front Staple Motor starts to reverse.
• Troubleshooting Guides: Enter dc330 Component Control [12-024], Staple Motor FWD, and then [12-025], Staple Motor REV. The Front Booklet Stapler cycles normally. Y↓ N→There is +24 VDC from P/J8993 pin 5 on the Booklet PWB to GND. Y↓ N→Check the circuit from the Booklet PWB to the Booklet Stapler Cover Switch (Finisher Interlock Switching). Repair/replace as required (PL 23.21). Switch Off the power. Check the wires between P/J8994 on the Booklet PWB and P/ J8994 on the Front Booklet Stapler (Booklet Staple Control (1 of 2)) for a loose or damaged connector, or an open or short circuit. If the wires are OK, replace the Front Booklet Stapler Assembly. If the problem remains, replace the Booklet Maker PWB. Switch Off the power. Check the wire between P/J8995, pin 5 on the Booklet PWB and J8894 pin 3 on the Front Booklet Stapler (Booklet Staple Control (1 of 2)) for a loose or damaged connector, or an open or short circuit. If the wires are OK, replace the Front Booklet Stapler Assembly. If the problem remains, replace the Booklet Maker PWB.

• Code: 312.260
• Description: Eject Clamp Home Sensor On Fault. After the Eject Clamp started ascending, the Eject Clamp Home Sensor did not turn On within 500ms.
• Troubleshooting Guides: • Manually operate the Eject mechanism. Check for binding, a dirty sensor, or damage. • Check the actuator for the Eject Clamp Home Sensor b for damage
  Execute dc330 Component Control [012-250], Eject Clamp Home Sensor. Block and unblock the Eject Clamp Home Sensor The display changes. Y↓ N→Check the wire between J8870 pin 2 on the Eject Clamp Home Sensor and P/J8988 pin 8 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8988, pins 9 and 7 on the Finisher PWB. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988 pin 8 on the Finisher PWB and GND. Actuate the Eject Clamp Home Sensor. The voltage changes. Y↓ N→Replace the Eject Clamp Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-052], Eject Clamp Up and [012-053], Eject Clamp Down. The Eject Motor (PL 23.11) starts up. Y↓ N→Check the wires between P/J8878 pins 1~6 on the Eject Motor and P/J8983 pins 5~8 on the Finisher PWB for an open or short circuit, or loose or damaged connectors (Set Eject Control (1 of 2)). The wires are OK. Y↓ N→Repair/replace as required. Measure the resistance of the Eject Motor between each pin of P/J8878-1/3/4/6. The resistance is approx. 2Ohm. Y↓ N→Replace the Eject Motor. Replace the Finisher PWB. If the problem remains, replace the Eject Motor Go to Set Eject Control (1 of 2). Check for an intermittent circuit or intermittent mechanical problem. If the check is OK, replace the Finisher PWB.

• Code: 312.260
• Description: Eject Clamp Home Sensor On Fault. Eject Clamp Home Sensor is not turned On within a specified time.
• Troubleshooting Guides: • Check for obstructions in the Clamp area
  Enter dc330 Component Control [012-250], Eject Clamp Home Sensor (PL 24.34 Item 12). Select Start. Actuate the Eject Clamp Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Eject Drive. Check the circuit of the Eject Clamp Home Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-052], Eject Clamp Motor (PL 24.34 Item 10). Select Start. The Eject Clamp moves up. Y↓ N→The Eject Motor energized. Y↓ N→Select Stop. Go to Finisher Eject Drive. Check the circuit of the Eject Clamp Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Eject Clamp Motor and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. Check the following: • Ensure that the Eject Clamp Home Sensor connectors are securely connected and that the wires are not damaged. • Ensure that the Eject Clamp Motor connectors are securely connected and that the wires are not damaged. If the above checks are OK, replace the Eject Clamp Home Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.261
• Description: Booklet Knife Folding Sensor Fault. When the Booklet Knife performs folding operation, the Knife Folding Sensor did not turn On within 400 msec after Knife Solenoid On.
• Troubleshooting Guides: • The Knife Folding Sensor for improper installation • The Knife Folding Sensor connectors for connection failure • The Booklet Fold Motor connectors for connection failure • The Knife Solenoid connectors for connection failure • The Knife Solenoid for improper installation • The Knife drive mechanism for a foreign substance
  Manually move the Booklet Tamper to both ends. Enter dc330 Component Control [013-008] and [013-009], Booklet Folder Roll Motor (PL 24.58 Item 2), alternately. Select Start. The Booklet Folder Roll Motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check continuity between the Booklet Folder Roll Motor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Folder Roll Motor (PL 24.58 Item 2). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select dc330 Component Control [013-010], Knife Solenoid, (PL 24.58 Item 10). Select Start. The Knife Solenoid actuates. Y↓ N→Select Stop. Go to Booklet Knife Control. Check continuity between the Knife Solenoid and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Knife Solenoid (PL 24.58 Item 10). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select dc330 Component Control [013-101], Booklet Knife Home Sensor (PL 24.54 Item 3). Select Start. Block/unblock the Knife Home Sensor. The display changed. Select Stop. Go to Booklet Knife Control. Check continuity between the Knife Home Sensor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Knife Home Sensor (PL 24.54 Item 3). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.263
• Description: Rear Tamper Fault. After the Rear Tamper started moving to the home position, the Rear Tamper Home Sensor did not turn On within 800ms.
• Troubleshooting Guides: Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly. Y↓ N→Replace the parts that are interfering with operation. Execute dc330 Component Control [012-221], Rear Tamper Home Sensor. Manually operate the Tamper mechanism to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8882 pin 2 and J8984 pin 8 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984, pins 9 and 7 on the Finisher PWB (Tamping Control (2 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984, pin 8 on the Finisher PWB and GNN (Tamping Control (2 of 2)). Manually operate the Tamper mechanism to block and unblock the Rear Tamper Home Sensor. The voltage changes. Y↓ N→Replace the Rear Tamper Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-026], Rear Tamper Motor Front and [012- 029], Rear Tamper Motor Rear. The Rear Tamper Motor moves. Y↓ N→There is +24 VDC from J8984 pin 19 on the Finisher PWB to GND Y↓ N→There is +24 VDC from J8982 pin 4 on the Finisher PWB to GND Y↓ N→Go to Finisher Interlock Switching and check the +24V circuit feeding pin 4. Repair/reconnect as required. Replace the Finisher PWB. Check the wires between J8984, pins 13 ~ 17 on the Finisher PWB, and the Rear Tamper Motor P/J8883 for an open or short circuit, or a loose or damaged connector. The wires are OK. Repair/reconnect as required. Replace the Rear Tamper Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.263
• Description: Rear Tamper Home Sensor On Fault. The Rear Tamper Home Sensor did not turn On within the specified time after the Tamper Motor had started running.
• Troubleshooting Guides: • Rear Tamper Actuator for deformation • Rear Tamper Home Sensor for proper installation • Rear Tamper Home Sensor connectors • Rear Tamper Motor for proper operation • Rear Tamper Motor connectors
  Enter dc330 Component Control [012-026] and [012-029], Rear Tamper Motor (PL 24.55 Item 9), alternately. Select Start. The Rear Tamper Motor runs. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Rear Tamper Motor. Refer to Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-221], Rear Tamper Home Sensor (PL 24.55 Item 7). Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Rear Tamper Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.264
• Description: Booklet Drawer Broken Fault. Booklet Drawer Set Sensor Open was detected when the Finisher Front Door Interlock was closed.
• Troubleshooting Guides: • The Booklet Drawer Set Sensor for improper installation • The Booklet Drawer Set Sensor connectors for connection failure • The Booklet Drawer Actuator part for a foreign substance and deformation • The Drawer mechanism for a foreign substance and deformation
  Enter dc330 Component Control [013-104], Booklet Drawer Set Sensor (PL 24.51 Item 7). Select Start. Remove and insert the Booklet Drawer manually. The display changes. Y↓ N→Go to Booklet Drive. Check the circuit of the Booklet Drawer Set Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.265
• Description: Booklet Folder Home Sensor Off Fault. When the Booklet Home moves from Home position, the Folder Home Sensor did not turn OFF within the specified time.
• Troubleshooting Guides: • The Folder Home Sensor for improper installation • The Folder Home Sensor connectors for connection failure • The Booklet Fold Knife Motor connectors for connection failure • The Knife drive mechanism for a foreign substance
  Enter dc330 Component Control [013-022], Folder Knife Motor FWD and [013-023], Folder Knife Motor REV alternately. Select Start. The Fold Knife Motor energizes. Y↓ N→Select Stop. Refer to Folder Control. Check continuity between the Folder Knife Motor ( P/J8905) and the Finisher PWB ( P8985), and between the Booklet PWB ( P/J8994) and the Finisher PWB ( P8985). The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Folder Knife Motor (PL 23.15). If the problem continues, replace the Booklet Maker PWB. Select Stop. Enter dc330 Component Control [13-101], Folder Home Sensor. Select Start. Block/unblock the Folder Home Sensor. The display changed. Y↓ N→Check the wire between J8904 pin 2 and P/J8990 pin 2 on the FInisher PWB for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8990, pins 3 and 1 on the Finisher PWB Folder Control. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8990, pin 2 on the Finisher PWB and GND (Folder Control). Block/unblock the Folder Home Sensor. The voltage changes. Y↓ N→Replace the Folder Home Sensor (PL 23.15 Item 16). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.265
• Description: Booklet Knife Home Sensor Off Fault. When the Booklet Knife moves from Home position, the Knife Home Sensor did not turn Off within the specified time after Knife Solenoid On.
• Troubleshooting Guides: • The Knife Home Sensor for improper installation • The Knife Home Sensor connectors for connection failure • The Booklet Fold Motor connectors for connection failure • The Knife Solenoid connectors for connection failure • The Knife Solenoid for improper installation • The Knife drive mechanism for a foreign substance
  Manually move the Booklet Tamper to both ends. Enter dc330 Component Control [013-008] and [013-009], Booklet Folder Roll Motor (PL 24.58 Item 2), alternately. Select Start. The Booklet Folder Roll Motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check continuity between the Booklet Folder Roll Motor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Folder Roll Motor (PL 24.58 Item 2). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher PWB. Select Stop. Select dc330 Component Control [013-010], Booklet Knife Solenoid, (PL 24.58 Item 10). Select Start. The Knife Solenoid actuates. Y↓ N→Select Stop. Go to Booklet Knife Control. Check continuity between the Knife Solenoid and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Knife Solenoid (PL 24.58 Item 10). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. Select dc330 Component Control [013-140], Booklet Knife Folding Sensor (PL 24.54 Item 3). Select Start. Block/unblock the Knife Folding Sensor. The display changed. Select Stop. Go to Booklet Knife Control. Check continuity between the Knife Folding Sensor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Knife Folding Sensor (PL 24.54 Item 3). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.266
• Description: Booklet Compiler No Paper Sensor Fault. The Booklet Compile No Paper Sensor did not turn On within the specified time.
• Troubleshooting Guides: Enter dc330 Component Control [013-102], Booklet Compile No Paper Sensor (PL 24.54 Item 18). Select Start. Block/unblock the Booklet Compile No Paper Sensor. The display changed. Y↓ N→Select Stop. Go to Finisher Compiling. Check continuity between the Booklet Compile No Paper and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Compile No Paper Sensor (PL 24.54 Item 18). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select [013-064], Booklet Paper Path Motor (PL 24.58 Item 4). Select Start. The Motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check continuity between the Booklet Paper Path Motor and the Booklet PWB and between the Booklet PWB and the Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Paper Path Motor (PL 24.58 Item 4). If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem persists, replace Finisher Main PWB. Select Stop. If the problem persists, replace Finisher Main PWB.

• Code: 312.268
• Description: Booklet Rear Stapler Fault. The Booklet Rear Staple Home Switch is not On (does not return to home position) within the specified time after the Booklet Rear Staple Motor starts to reverse.
• Troubleshooting Guides: Enter dc330 Component Control [12-026], Staple Motor FWD. and then [12-027], Staple Motor REV. The Front Booklet Stapler cycles normally. Y↓ N→There is +24 VDC from P/J8993 pin 5 on the Booklet PWB to GND. Y↓ N→Check the circuit from the Booklet PWB to the Booklet Stapler Cover Switch (Booklet Interlock Switching). Repair/replace as required (PL 23.21). Switch Off the power. Check the wires between P/J8995 on the Booklet PWB and J8895 on the Rear Booklet Stapler (Booklet Staple Control (2 of 2)) for a loose or damaged connector, or an open or short circuit. If the wires are OK, replace the Rear Booklet Stapler Assembly. If the problem remains, replace the Booklet PWB (PL 23.21). Switch Off the power. Check the wire between P/J8995, pin 12 on the Booklet PWB and J8895 pin 3 on the Rear Booklet Stapler (Booklet Staple Control (2 of 2)) for a loose or damaged connector, or an open or short circuit. If the wires are OK, replace the Rear Booklet Stapler Assembly. If the problem remains, replace the Booklet Maker PWB.

• Code: 312.269
• Description: Booklet Sub-CPU Communications Fault. Communications between the Finisher PWB and the Booklet PWB Failed
• Troubleshooting Guides: • Check the connectors at the Finisher PWB and the Booklet PWB are connected or seated properly. • Check the wiring between the Finisher PWB and the Booklet PWB for damage.
  Power Off and power On the printer. The problem is resolved. Y↓ N→Reload the software. The problem is resolved. Y↓ N→Replace the Finisher PWB. If the problem continues, replace the Booklet Maker PWB. Rerun the job. Rerun the job.

• Code: 312.269
• Description: Booklet Sub-CPU Communications Fault. Communications between the Finisher PWB and the Booklet PWB failed.
• Troubleshooting Guides: • Check the connectors at the Finisher PWB and the Booklet PWB are connected or seated properly. • Check the wiring between the Finisher PWB and the Booklet PWB for damage.
  Power Off and Power On the Printer. The problem is resolved. Y↓ N→Reload the Software. The problem is resolved. Y↓ N→Replace the Finisher Main PWB. If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). Rerun the job. Rerun the job.

• Code: 312.282
• Description: Eject Clamp Home Sensor Off Fault. BSD-ON: Set Eject Control (1 of 2) After the Eject Clamp started descending, the Eject Clamp Home Sensor did not turn Off within 200ms.
• Troubleshooting Guides: • Manually operate the Eject mechanism. Check for binding, a dirty sensor, or damage. • Check the Actuator for the Eject Clamp Home Sensor for damage.
  Execute dc330 Component Control [012-250], Eject Clamp Home Sensor. Block and unblock the Eject Clamp Home Sensor The display changes. Y↓ N→Check the wire between J8870 pin 2 on the Eject Clamp Home Sensor and P/J8988 pin 8 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8988, pins 9 and 7 on the Finisher PWB. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988 pin 8 on the Finisher PWB and GND. Actuate the Eject Clamp Home Sensor. The voltage changes. Y↓ N→Replace the Eject Clamp Home Sensor (PL 23.11 Item 34). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-052], Eject Clamp Up and [012-053], Eject Clamp Down. The Eject Motor starts. Y↓ N→Check the wires between P/J8878 pins 1~6 on the Eject Motor and P/J8893 pins 5~8 on the Finisher PWB for an open or short circuit, or loose or damaged connectors (Set Eject Control (1 of 2)). The wires are OK. Y↓ N→Repair/replace as required. Measure the resistance of the Eject Motor between each pin of P/J8878-1/3/4/6. The resistance is approx. 2Ohm. Y↓ N→Replace the Eject Motor. Replace the Finisher PWB. If the problem remains, replace the Eject Motor Go to Set Eject Control (1 of 2). Check for an intermittent circuit or intermittent mechanical problem. If the check is OK, replace the Finisher PWB.

• Code: 312.282
• Description: Eject Clamp Home Sensor Off Fault. Eject Clamp Home Sensor is not turned Off within a specified time.
• Troubleshooting Guides: • Check for obstructions in the Clamp area
  Enter dc330 Component Control [012-250], Eject Clamp Home Sensor (PL 23.11 Item 16). Select Start. Actuate the Eject Clamp Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Eject Drive. Check the circuit of the Eject Clamp Home Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-052], Eject Clamp Motor (PL 24.34 Item 10). Select Start. The Eject Clamp moves up. Y↓ N→The Eject Motor energized. Y↓ N→Select Stop. Go to Finisher Eject Drive. Check the circuit of the Eject Clamp Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Eject Clamp Motor (PL 24.34 Item 10) and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. Check the following: • Ensure that the Eject Clamp Home Sensor connectors are securely connected and that the wires are not damaged. • Ensure that the Eject Clamp Motor connectors are securely connected and that the wires are not damaged. If the above checks are OK, replace the Eject Clamp Home Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.283
• Description: Set Clamp Home Sensor On Fault. After the Set Clamp started, the Set Clamp Home Sensor did not turn On within 200ms.
• Troubleshooting Guides: • Manually operate the Eject mechanism. Check for binding, a dirty sensor, or damage. • Check the Actuator for the Set Clamp Home Sensor for damage.
  Execute dc330 Component Control [012-251], Set Clamp Home Sensor. Actuate the Set Clamp Home Sensor. The display changes. Y↓ N→Check the wire between J8871 pin 2 on the Set Clamp Home Sensor and P/J8988 pin 11 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between J8871, pins 12 and 10 on the Finisher PWB. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between the P/J8988 pin 11 on the Finisher PWB and GND). Actuate the Eject Clamp Home Sensor. The voltage changes. Y↓ N→Replace the Eject Clamp Home Sensor (PL 23.11 Item 34). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-052], Eject Clamp Up and [012-053], Eject Clamp Down. The Eject Motor starts. Y↓ N→Check the wires between P/J8878 pins 1~6 on the Eject Motor and P/J8983 pins 5~8 on the Finisher PWB for an open or short circuit, or loose or damaged connectors (Set Eject Control (1 of 2)). The wires are OK. Y↓ N→Repair/replace as required. Measure the resistance of the Eject Motor between each pin of P/J8878-1/3/4/6. The resistance is approx. 2 Ohm. Y↓ N→Replace the Eject Motor. Replace the Finisher PWB. If the problem remains, replace the Eject Motor Execute dc330 Component Control [012-050 Set Clamp Clutch On]. The Set Clamp Clutch energizes. Y↓ N→Select Stop. Check the wires between P/J8877 pins 1 and 2 on the Set Clamp Clutch and P/J8983 pins 3 and 4 on the Finisher PWB for an open or short circuit, or loose or damaged connectors (Set Eject Control (2 of 2)). The wires are OK. Y↓ N→Repair/replace as required. Measure the voltage between the Finisher PWB P8983-4 (+) and GND (-). The voltage is approx. +24VDC. Y↓ N→Replace the Set Clamp Clutch (PL 23.11). If the problem persists, replace the Finisher PWB. Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.283
• Description: Set Clamp Home Sensor On Fault. Set Clamp Home Sensor is not turned On within a specified time.
• Troubleshooting Guides: • Check for obstructions in the Clamp area
  Enter dc330 Component Control [012-250], Eject Clamp Home Sensor (PL 24.34 Item 12). Select Start. Actuate the Eject Clamp Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Set Clamp Control. Check the circuit of the Eject Clamp Home Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-052], Eject Motor (PL 24.35 Item 17). Select Start. The Eject moves up. Y↓ N→The Eject Motor energized. Y↓ N→Select Stop. Go to Finisher Eject Drive. Check the circuit of the Eject Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Eject Motor (PL 24.35 Item 17) and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. The following codes will be stacked. Select [012-052], Eject Motor (PL 24.35 Item 17). Select Start. Select [012-050], Set Clamp Clutch (PL 24.35 Item 15). Select Start. The Eject Roll Shaft rotates. Y↓ N→The Set Clamp Clutch energized. Y↓ N→Select Stop. Go to Finisher Set Clamp Control. Check the circuit of the Set Clamp Clutch. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Set Clamp Clutch (PL 24.35 Item 15) and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. Check the following: • Ensure that the Eject Clamp Home Sensor connectors are securely connected and that the wires are not damaged. • Ensure that the Eject Motor connectors are securely connected and that the wires are not damaged. If the above checks are OK, replace the Eject Clamp Home Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.284
• Description: Set Clamp Home Sensor Off Fault. BSD-ON: Set Eject Control (2 of 2) After the Set Clamp completed operation, the Set Clamp Home Sensor did not turn Off within the specified time.
• Troubleshooting Guides: • Manually operate the Eject mechanism. Check for binding, a dirty sensor, or damage. • Check the Actuator for the Set Clamp Home Sensor for damage.
  Execute dc330 Component Control [012-251], Set Clamp Home Sensor. Actuate the Set Clamp Home Sensor. The display changes. Y↓ N→Check the wire between J8881 pin 2 on the Set Clamp Home Sensor and P/J8988 pin 11 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8988, pins 12 and 10 on the Finisher PWB. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between the pin 11 on the Finisher PWB and GND). Actuate the Eject Clamp Home Sensor. The voltage changes. Y↓ N→Replace the Eject Clamp Home Sensor (PL 23.11 Item 34). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-052], Eject Clamp Up and [012-053], Eject Clamp Down. The Eject Motor starts. Y↓ N→Check the wires between P/J8878 pins 1~6 on the Eject Motor and P/J8983 pins 5~8 on the Finisher PWB for an open or short circuit, or loose or damaged connectors (Set Eject Control (1 of 2)). The wires are OK. Y↓ N→Repair/replace as required. Measure the resistance of the Eject Motor between each pin of P/J8878-1/3/4/6. The resistance is approx. 2Ohm. Y↓ N→Replace the Eject Motor. Replace the Finisher PWB. If the problem remains, replace the Eject Motor Execute dc330 Component Control [012-050 Set Clamp Clutch ON]. The Set Clamp Clutch energizes. Y↓ N→Select Stop. Check the wires between P/J8877 pins 1 and 2 on the Set Clamp Clutch and P/J8983 pins 3 and 4 on the Finisher PWB for an open or short circuit, or loose or damaged connectors (Set Eject Control (2 of 2)). The wires are OK. Y↓ N→Repair/replace as required. Measure the voltage between the Finisher PWB P8983-4 (+) and GND (-). The voltage is approx. +24VDC. Y↓ N→Replace the Set Clamp Clutch (PL 23.11 Item 12). If the problem persists, replace the Finisher PWB. Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.284
• Description: Set Clamp Home Sensor Off Fault. Set Clamp Home Sensor is not turned Off within a specified time.
• Troubleshooting Guides: • Check for obstructions in the Clamp area
  Enter dc330 Component Control [012-250], Eject Clamp Home Sensor (PL 24.34 Item 12). Select Start. Actuate the Eject Clamp Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Set Clamp Control. Check the circuit of the Eject Clamp Home Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-052], Eject Motor (PL 24.35 Item 17). Select Start. The Eject moves up. Y↓ N→The Eject Motor energized. Y↓ N→Select Stop. Go to Finisher Eject Drive. Check the circuit of the Eject Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Eject Motor and its associated gears, pulleys and belts for damage, contamination and misalignment (PL 24.35 Item 17). Select Stop. Select [012-050], Set Clamp Clutch (PL 24.35 Item 15). Select Start. The Eject Roll Shaft rotates. Y↓ N→The Set Clamp Clutch energized. Y↓ N→Select Stop. Go to Finisher Set Clamp Control. Check the circuit of the Set Clamp Clutch. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Set Clamp Clutch (PL 24.35 Item 15) and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. Check the following: • Ensure that the Eject Clamp Home Sensor connectors are securely connected and that the wires are not damaged. • Ensure that the Eject Motor connectors are securely connected and that the wires are not damaged. If the above checks are OK, replace the Eject Clamp Home Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.286
• Description: Decurler Cam Home Sensor On Fault. Decurler Cam Home Sensor is not turned on after the lapse of 1000msec from the detection of Decurler Cam Home Sensor Off.
• Troubleshooting Guides: • Check Enter dc330 Component Control [012-282], Decurler Cam Home Sensor (PL 24.5 Item 4). Select Start. Actuate the Decurler Cam Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Decurling. Check the circuit of the Decurler Cam Home Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [012-099], Decurler Cam Clutch (PL 24.5 Item 7). Select Start. The Decurler Roll Shaft rotates. Y↓ N→The Decurler Cam Clutch energized. Y↓ N→Select Stop. Go to Finisher Decurling. Check the circuit of the Decurler Cam Clutch. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Decurler Cam Clutch (PL 24.5 Item 7) and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. Check the following: • Ensure that the Decurler Cam Home Sensor connectors are securely connected and that the wires are not damaged. • Ensure that the Decurler Cam Clutch connectors are securely connected and that the wires are not damaged. • H-Transport Motor Drive belt for wear, damage, or loose • H-Transport Motor connections are securely connected and that the wires are not damaged. If the above checks are OK, replace the Decurler Cam Home Sensor (PL 24.5 Item 4). If the problem continues, replace the H-Transport PWB (PL 24.44 Item 19). If the problem persists, replace the Finisher Main PWB.for obstructions in the Decurler area

• Code: 312.287
• Description: Decurler Cam Home Sensor Off Fault. Decurler Move Home Sensor is not turned off after the lapse of 1000msec from the detection of Decurler Cam Home Sensor On.
• Troubleshooting Guides: • Check for obstructions in the Decurler area
  Enter dc330 Component Control [012-282], Decurler Cam Home Sensor (PL 24.5 Item 4). Select Start. Actuate the Decurler Cam Home Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Decurling. Check the circuit of the Decurler Cam Home Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Select [012-099], Decurler Cam Clutch (PL 24.5 Item 7). Select Start. The Decurler Roll Shaft rotates. Y↓ N→The Decurler Cam Clutch energized. Y↓ N→Select Stop. Go to Finisher Decurling. Check the circuit of the Decurler Cam Clutch. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Check the Decurler Cam Clutch (PL 24.5 Item 7) and its associated gears, pulleys and belts for damage, contamination and misalignment. Select Stop. Check the following: • Ensure that the Decurler Cam Home Sensor connectors are securely connected and that the wires are not damaged. • Ensure that the Decurler Cam Clutch connectors are securely connected and that the wires are not damaged. • H-Transport Motor Drive belt for wear, damage, or loose • H-Transport Motor connections are securely connected and that the wires are not damaged. If the above checks are OK, replace the Decurler Cam Home Sensor (PL 24.5 Item 4). If the problem continues, replace the H-Transport PWB (PL 24.44 Item 19). If the problem persists, replace the Finisher Main PWB.

• Code: 312.291
• Description: Stapler Fault. • After the Stapler Motor turned On (Forward rotation), the Staple Head Home Sensor did not switch from Off to On within the specified time. • After the Stapler Motor turned On (Reverse rotation), the Staple Head Home Sensor did not turn On within the specified time.
• Troubleshooting Guides: Execute dc330 Component Control [012-046], Staple Motor FWD, and [012-047], then Staple Motor REV. The Stapler cycles. Y↓ N→Check the wires between J8887, pins 1~4 on the Stapler Assembly and P/J8981 pins 9~11 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. If the wires are OK, the Stapler Assembly. If the problem continues, replace the Finisher PWB (PL 23.16). Select Stop. Execute dc330 Component Control [012-244], Staple Home Switch. The display is “Low.” Y↓ N→There is +5 VDC from pin 5 to pin 1 of J8886 on the Stapler Assembly. Y↓ N→Check the wires from P/J8981, pins 4 and 8, to J8886 pins 5 and 1 for an open circuit. If the wires are OK, replace the Finisher PWB. Check the wire from J8886 pin 4 to P/J8981 pin 5 for an open circuit. If the wire is OK, replace the Stapler Assembly (PL 23.8). Go to Staple Control. Check for an intermittent connection. If the check is good, replace the Stapler Assembly. If the problem continues, replace the Finisher PWB. A

• Code: 312.291
• Description: Stapler Fault. The Staple Home Sensor has not switched from Off to On within the specified time after the Staple Motor had started rotating forward. The Staple Home Sensor did not turn On within the specified time after the Staple Motor had started rotating backward.
• Troubleshooting Guides: • Check the Stapler Head for obstructions
  Enter dc330 Component Control [012-046] and [012-047], Staple Motor, (PL 24.33 Item 9), alternately. Select Start. The Staple Motor runs. Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Head and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Unit. If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-244], Staple Home Sensor. Select [012-046] and [012-047], Staple Motor, (PL 24.33 Item 9), alternately. Select Start. The display changes Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Home Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Unit. If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • The wire between the Staple Head and the Finisher PWB for damage If the above checks are OK, replace the Finisher Main PWB.

• Code: 312.295
• Description: Stapler Move Position Sensor On Fault. • After the Stapler started moving to the staple position, the Stapler Move Position Sensor did not turn On within 2sec. • After the Stapler completed moving to the Staple Position, the Stapler Move Position Sensor did not turn On.
• Troubleshooting Guides: Check the Stapler, Base Frame, and Rail (PL 23.8) for freedom of movement.
  Execute dc330 Component Control [012-241], Stapler Move Position Sensor. Move the Stapler by hand from the Home position to the staple position and back. The display changes. Y↓ N→Check the wire between J8885 pin 2 on the Stapler Move Position Sensor and P/J8981 pin 2 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8981, pins 3 and 1 on the Finisher PWB (Staple Positioning). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB (PL 23.16). Measure the voltage between P/J8981 pin 2 on the Finisher PWB and GND (Staple Positioning). Move the Stapler by hand from the Home position to the staple position and back. The voltage changes. Y↓ N→Replace the Stapler Move Position Sensor (PL 23.8 Item 8). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-43], Staple Move Motor Rear and [012- 040], Staple Move Motor Front. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8981 pins 13~16 on the Finisher PWB and P/J8888 on the Stapler Move Motor (Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Replace the Staple Move Motor. If the problem persists, replace the Finisher PWB (PL 23.16). Go to Staple Positioning. Check for an intermittent connection. If the check is good, replace the Stapler Assembly. If the problem continues, replace the Finisher PWB.

• Code: 312.295
• Description: Stapler Move Position Sensor On Fault. Stapler Move Position Sensor is not turned On within a specified time. Stapler Move Position Sensor not turned On when home operation is completed. Stapler Move Position Sensor is not turned On after the stop following Stapler Move Position Sensor On.
• Troubleshooting Guides: • Check Actuator for deformation • Check Stapler Move Position Sensor for improper installation • Check Stapler Move Position Sensor connectors for connection failure • Check Staple Move Motor connectors for connection failure • Check Staple Guide for deformation
  Enter dc330 Component Control [012-046] and [012-047], Stapler Move Motor (PL 24.33 Item 9), alternately. Select Start. The Staple Move Motor energizes. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Staple Move Motor (PL 24.33 Item 9). If the problem continues, replace the Finisher Main PWB. Select Stop. Select dc330 Component Control [012-241], Stapler Move Position Sensor (PL 24.33 Item 5). Select Start. Block/unblock the Stapler Move Position Sensor. The display changed. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Position Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Move Position Sensor (PL 24.33 Item 5). If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • Obstructions on the Stapler Upper Rail • Stapler Move Motor Gear If the above checks are OK. replace the Finisher Main PWB.

• Code: 312.296
• Description: Staple Move Sensor Off Fault. • After the Stapler started moving to the Staple Position and the Staple Move Sensor turned Off, the Staple Move Sensor did not turn Off within 500ms. • After the Staple Position had been fixed, the Staple Move Sensor turned Off. • After the Staple Move Sensor turned On when paper passed through the Dual Staple 1 Position while moving to the Rear Staple Position, the Staple Move Sensor did not turn Off within 500ms.
• Troubleshooting Guides: Check the Stapler, Base Frame, and Rail (PL 23.8) for freedom of movement.
  Execute dc330 Component Control [012-241], Stapler Move Position Sensor. Move the Stapler by hand from the Home position to the staple position and back. The display changes. Y↓ N→Check the wire between J8885 pin 2 on the Stapler Move Position Sensor and P/J8981 pin 2 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8981, pins 3 and 1 on the Finisher PWB (Staple Positioning. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8981 pin 2 on the Finisher PWB and GND (Staple Positioning). Move the Stapler by hand from the Home position to the staple position and back. The voltage changes. Y↓ N→Replace the Stapler Move Position Sensor (PL 23.8 Item 8). Replace the Finisher PWB (PL 23.16). Alternately execute dc330 Component Control [012-43], Staple Move Motor Rear and [012- 040], Staple Move Motor Front. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8981 pins 13~16 on the Finisher PWB and P/J8888 on the Stapler Move Motor (Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Replace the Staple Move Motor. If the problem persists, replace the Finisher PWB. Go to Staple Positioning. Check for an intermittent connection. If the check is good, replace the Stapler Assembly. If the problem continues, replace the Finisher PWB.

• Code: 312.296
• Description: Stapler Move Position Sensor Off Fault. Stapler Move Position Sensor is not turned Off within a specified time Stapler Move Position Sensor is not turned Off when home operation is completed. Stapler Move Position Sensor is not turned Off after the stop following Stapler Move Position Sensor Off.
• Troubleshooting Guides: • Check Actuator for deformation • Check Stapler Move Position Sensor for improper installation • Check Stapler Move Position Sensor connectors for connection failure • Check Staple Move Motor connectors for connection failure • Check Staple Guide for deformation
  Enter dc330 Component Control [012-046] and [012-047], Stapler Move Motor (PL 24.33 Item 9), alternately. Select Start. The Staple Move Motor energizes. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Move Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. Select dc330 Component Control [012-241], Stapler Move Position Sensor (PL 24.33 Item 5). Select Start. Block/unblock the Stapler Move Position Sensor. The display changed. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Position Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Move Position Sensor (PL 24.33 Item 5). If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • Obstructions on the Stapler Upper Rail • Stapler Move Motor Gear If the above checks are OK. replace the Finisher Main PWB.

• Code: 312.300
• Description: Eject Cover Open. Eject Cover Switch open was detected.
• Troubleshooting Guides: • Ensure that the Eject Cover is down. • Check Eject Cover Switch for improper installation. • Check Eject Cover Switch connectors for connection failure. • Check Actuator part for deformation
  Enter dc330 Component Control [012-300], Eject Cover Switch (PL 23.11 Item 37). Select Start. Actuate the Eject Cover Switch. The display changes Y↓ N→Select Stop. Check continuity of the Eject Cover Switch ( J8889, pin 1 to pin 2). The continuity check is OK. Y↓ N→Replace the Eject Cover Switch (PL 23.11 Item 37). Check continuity between the Eject Cover Switch and the Finisher PWB ( J8982 pin 1 to. J8889 pin 1, and J8889 pin2 to J8889 pin 7. If the check is OK, replace the Finisher PWB (PL 23.16). Select Stop. If the problem continues, replace the Finisher PWB.

• Code: 312.300
• Description: Eject Cover Open. Eject Cover Switch open was detected.
• Troubleshooting Guides: • Ensure that the Eject Cover is down • Check Eject Cover Switch for improper installation • Check Eject Cover Switch connectors for connection failure • Check Actuator part for deformation
  Enter dc330 Component Control [012-300], Eject Cover Switch (PL 24.34 Item 21). Select Start. Actuate the Eject Cover Switch. The display changes Y↓ N→Select Stop. Check continuity of the Eject Cover Switch. The continuity check is OK. Y↓ N→Replace the Eject Cover Switch. Go to Finisher Interlocks. Check continuity between the Eject Cover Switch and the Finisher PWB. If the check is OK, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.302
• Description: Finisher Front Cover Open.
• Troubleshooting Guides: • Check the installation of the H-Transport Open Sensor • Opening/closing of the Finisher H-Transport Cover.
  Execute dc330 Component Control [012-302], Front Door Interlock Switch. Open/close the Finisher Front Cover. The display changes. Y↓ N→Open the Front Door and cheat the Front Door Interlock Switch The display changes. Y↓ N→Check the wires between J8982 pin 3 and J8891 pin 2B, and from J8891 pin 2A to J8982 pin 3 for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Remove the cheater. Measure the voltage between J8891 pin 2A on the Front Door Interlock Switch and GND (Finisher Interlock Switching). The voltage is approx. +5VDC. Y↓ N→Check the wire from J8891 pin 2A to J8982 pin 3 for an open or short circuit, or a loose or damaged connector. If the wires are OK, replace the Finisher PWB. Cheat the Interlock Switch. The voltage drops to 0 VDC. Y↓ N→Replace the Front Door Interlock Switch (PL 23.16). Replace the Finisher PWB. Check the actuator for damage or misalignment Check the Interlock circuit for an intermittent condition (Finisher Interlock Switching). If the problem continues, replace the Finisher PWB.

• Code: 312.302
• Description: Finisher Front Door Interlock Open. Finisher Front Door Switch Open was detected.
• Troubleshooting Guides: • Finisher Front Door Switch for proper installation • Finisher Front Door Switch connectors for connection failure • Actuator part for deformation • Ensure that the Eject Cover is in the closed/down position
  Enter dc330 Component Control [012-302], Front Door Interlock Switch (PL 24.11 Item 2). Select Start. Open and close the Front Door. The display changes. Y↓ N→Go to Finisher Interlocks. Disconnect P8314 on the Finisher PWB. +5 VDC is measured between the Finisher PWB P8314-2 and P8314-3. Y↓ N→Replace the Finisher Main PWB. There is less than 5 ohms between P8314-3 and the finisher frame. Y↓ N→Replace the Finisher Main PWB. Go to Finisher Interlocks. Check the wires between the Finisher PWB, the Eject Cover Switch and the Finisher Front Door Switch for an open circuit or poor contact. If the wires are good, replace the Front Door Interlock Switch. Select Stop. Check the following: • Alignment between the Front Door and the Front Door Interlock Switch • Front Door and Front Cover for proper installation • Actuator for damage or bent • Magnet for proper mounting If the above checks are OK, replace the Finisher Main PWB.

• Code: 312.303
• Description: Finisher H-Transport Cover Open. The Finisher H-Transport Cover is open.
• Troubleshooting Guides: • Check the installation of the H-Transport Open Sensor. • Opening/closing of the Finisher H-Transport Cover.
  Execute dc330 Component Control [012-303], H-Transport Open Sensor. Actuate the H-Transport Open Sensor (PL 23.4). The display changes. Y↓ N→Check the wire between P/J8860 pin 2 and J8987 pin 2 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8987, pins 3 and 1 on the Finisher PWB (Horizontal Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8987, pin 2 on the Finisher PWB and GND (Horizontal Paper Transportation). Actuate the H-Transport Open Sensor. The voltage changes. Y↓ N→Replace the H-Transport Open Sensor (PL 23.4). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.303
• Description: H-Transport Cover Open. H-Transport Interlock Sensor-L Open was detected.
• Troubleshooting Guides: • The H-Transport Interlock Sensor-L for improper installation • Check for obstruction in between the H-Transport Cover and the H-Transport paper transport area • The H-Transport Cover Interlock Sensor connectors for connection failure • The Actuator for deformation
  Select Start. Block and unblock the H-Transport Interlock Sensor-L. The display changes. Y↓ N→+5 VDC is measured between the H-Transport Interlock Sensor P/J8445–1 and -3. Y↓ N→Go to Finisher Horizontal Transportation (2 of 2). Disconnect J8310 on Finisher PWB. +5 VDC is measured between H Transport Interlock Sensor P/ P/ J8445-1 and -3. Y↓ N→Replace the H-Transport PWB (PL 24.44 Item 19). Check for an open circuit between H-Transport PWB P/J8396-3 and -1 and H-Transport Interlock Sensor P/J8445-1 and -3. +5 VDC is measured between Finisher PWB J8310-20 and ground. Y↓ N→Replace the Finisher Main PWB +5 VDC is measured at the H-Transport Interlock Sensor J8445-2 and ground. Y↓ N→Check for an open circuit between H-Transport Interlock Switch P/J8445-1 and HTransport Interlock Sensor P/J8445-2. Replace the H-Transport Interlock Sensor. Select Stop. Check the following: • Alignment between the H-Transport Cover and the H-Transport Interlock Sensor • The H-Transport Cover for proper installation • The Actuator for bending or alignment • The Magnets for proper mounting

• Code: 312.307
• Description: Booklet Drawer Set Fault. Booklet Drawer Set Sensor Open was detected.
• Troubleshooting Guides: • The Booklet Drawer Set Sensor for improper installation • The Booklet Drawer Set Sensor connectors for connection failure • The Actuator part for deformation
  Enter dc330 Component Control [013-104], Booklet Drawer Set Sensor (PL 24.51 Item 7). Select Start. Remove and insert the Booklet Drawer manually. The display changes. Y↓ N→Select Stop. Go to Booklet Drive. Check continuity between the Booklet Drawer Set Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Drawer Set Sensor (PL 24.51 Item 7). If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.334
• Description: Download Mode Fault. Failure in previous download (abnormal termination during download); can only start in Download Mode upon turning power On.
• Troubleshooting Guides: Download defective; check the following: • Cable connection between Finisher and IOT is not connected or defective • Finisher power cable is plugged in properly

• Code: 312.334
• Description: Download Mode Failure. Failure in previous download (abnormal termination during download); can only start in Download Mode upon turning power on.
• Troubleshooting Guides: Download defective; check the following: • Cable connection between Finisher and IOT is not connected or defective. • The Finisher power cable is plugged in properly.

• Code: 312.350
• Description: Finisher Communication. Communication is not established between the MD PWB and the Finisher PWB in A/P Finisher.
• Troubleshooting Guides: Switch the machine power Off and On. The 012-350 is still present. Y↓ N→Return to Service Call Procedures. Check P/J8300 on the Finisher PWB and J590 on the MD PWB for a secure connection (Finisher Detection & Communication). Check the condition of the wires. Check the connections between the A/P Finisher and the IOT. If the connectors were recently disconnected and reconnected check for damaged pins. Check for less than 1 VDC at P/J590-1 on the MD PWB. Less than 1 VDC is measured. Y↓ N→Check the wire between P/J590-1 on the MD PWB and J8300-11 on the Finisher PWB for damage or a break. Repair as required. If the wire is good, replace the MD PWB. Replace the Finisher Main PWB.

• Code: 312.700
• Description: Punch Box Nearly Full. Punch Box nearly full.
• Troubleshooting Guides: Empty the Punch Box (PL 23.2 Item 11) and re-insert. If the fault remains, check the circuit of the Punch Box Set Sensor (Punch Control).

• Code: 312.900
• Description: Paper at Buffer Path Sensor. Control logic reports paper at the Buffer Path Sensor.
• Troubleshooting Guides: Check the following: • Paper on the Buffer Path Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-101], Buffer Path Sensor (PL 24.41 Item 10). Select Start. Actuate the Buffer Path Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Buffer Transport. Check the circuit of the Buffer Path Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Finisher for a docking failure If the above checks are OK, then replace the Buffer Path Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.901
• Description: Paper at H-Transport Entrance Sensor. Control logic reports paper at the H-Transport Entrance Sensor.
• Troubleshooting Guides: • Paper on the H-Transport Entrance Sensor • Obstructions in the paper path • H-Transport Motor Belt for wear or damage • Guides on the H-Transport Cover for damage, wear or faulty installation
  Enter dc330 Component Control [012-190], H-Transport Entrance Sensor (PL 24.4 Item 12). Select Start. Open the H-Transport Cover and actuate the H-Transport Entrance Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Horizontal Transportation (1 of 2). Check the circuit of the H-Transport Entrance Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • H-Transport and Finisher for a docking failure • H-Transport Motor and its associated gears and belts for damage, contamination or misalignment If the above checks are OK, then replace the H-Transport Entrance Sensor (PL 24.4 Item 12). If the problem persists, replace the Finisher Main PWB.

• Code: 312.901
• Description: H-Transport Entrance Sensor Static Jam. Paper remains on the H-Transport Entrance Sensor.
• Troubleshooting Guides: Check the paper path. If no paper is found continue with this RAP. Clean the Sensor.
  Execute dc330 Component Control [012-190], H-Transport Entrance Sensor. Actuate the HTransport Entrance Sensor (PL 23.4). The display changes. Y↓ N→Check the wire between P/J8861 pin 2 and J8987 pin 6 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8987, pins 4 and 5 on the Finisher PWB (Horizontal Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8987, pin 6 on the Finisher PWB and GND (Horizontal Paper Transportation). Actuate the H-Transport Entrance Sensor. The voltage changes. Y↓ N→Replace the H-Transport Entrance Sensor (PL 23.4). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.902
• Description: Paper at H-Transport Exit Sensor. Control logic reports paper at the H-Transport Exit Sensor.
• Troubleshooting Guides: Check the following: • Paper on the H-Transport Exit Sensor • Obstructions in the paper path • H-Transport Motor Belt for wear or damage • Guides on the H-Transport Cover for damage, wear or faulty installation
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor (PL 24.6 Item 8). Select Start. Open the H-Transport Cover and actuate the H-Transport Exit Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the H-Transport Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • H-Transport and Finisher for a docking failure • H-Transport Motor and its associated gears and belts for damage, contamination or misalignment If the above checks are OK, then replace the H-Transport Exit Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.903
• Description: Paper at Compiler Exit Sensor. Control logic reports paper at the Compiler Exit Sensor.
• Troubleshooting Guides: • Paper on the Compiler Exit Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-150], Compiler Exit Sensor (PL 24.36 Item 3). Select Start. Open the H-Transport Cover and actuate the Compiler Exit Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Compiling. Check the circuit of the Compiler Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Exit Motor Belt for wear or damage • Exit Pinch Rollers 1 and 2 for damage • Lower Exit Roller for wear or damage • Synchronous Belt for wear or damage If the above checks are OK, then replace the Compiler Exit Sensor. If the problem continues, replace the Finisher Main PWB.

• Code: 312.903
• Description: Paper Remains at Compiler Exit Sensor. Paper remains on the Compiler Exit Sensor.
• Troubleshooting Guides: Check the paper path. If no paper is found continue with this RAP. Clean the Sensor.
  Execute dc330 Component Control [012-150], Compiler Exit Sensor. Actuate the Compiler Exit Sensor (PL 23.14). The display changes. Y↓ N→Check the wire between J8869 pin 2 and P/J8988 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 3 and 1 on the Finisher PWB (Finisher Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 5 on the Finisher PWB and GND (Finisher Paper Transportation). Actuate the Compiler Exit Sensor. The voltage changes. Y↓ N→Replace the Compiler Exit Sensor (PL 23.14). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.905
• Description: Paper at Compiler Tray No Paper Sensor. Control logic reports paper at the Compiler Tray No Paper Sensor.
• Troubleshooting Guides: • Paper on the Compiler Tray Paper Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-151], Compiler Tray No Paper Sensor (PL 24.35 Item 3). Select Start. Actuate the Compiler Tray No Paper Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Compiling Check the circuit of the Compiler Tray No Paper Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Exit Motor Belt for wear or damage • Exit Pinch Rollers 1 and 2 for damage • Lower Exit Roller for wear or damage • Synchronous Belt for wear or damage If the above checks are OK, then replace the Compiler Tray No Paper Sensor. If the problem continues, replace the Finisher Main PWB.

• Code: 312.905
• Description: Compiler Tray No Paper Sensor Static Jam. Paper remains on the Compiler Tray No Paper Sensor.
• Troubleshooting Guides: Check the paper path. If no paper is found continue with this RAP.
  Enter dc330 Component Control [012-151], Compiler Tray No Paper Sensor. Select Start. Actuate the Compiler Tray No Paper Sensor. The display changes. Y↓ N→Check the wire between J8880 pin 2 and J8984 pin 2 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984 pins 3 and 1 on the Finisher PWB (Tamping Control (2 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984 pin 2 on the Finisher PWB and GND (Tamping Control (2 of 2)). Actuate the Compiler Tray No Paper Sensor. The voltage changes. Y↓ N→Replace the Compiler Tray No Paper Sensor (PL 23.12). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.906
• Description: Paper at H-Transport Exit Sensor. Control logic reports paper at the H-Transport Exit Sensor.
• Troubleshooting Guides: Check the following: • Paper on the H-Transport Exit Sensor • Obstructions in the paper path • H-Transport Motor Belt for wear or damage • Guides on the H-Transport Cover for damage, wear or faulty installation
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor. Select Start. Open the H-Transport Cover and actuate the H-Transport Entrance Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the H-Transport Entrance Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • H-Transport and Finisher for a docking failure • H-Transport Motor and its associated gears and belts for damage, contamination or misalignment If the above checks are OK, then replace the H-Transport Entrance Sensor (PL 24.4 Item 12). If the problem persists, replace the Finisher Main PWB.

• Code: 312.907
• Description: Paper at Top Tray Exit Sensor. Control logic reports paper at the Top Tray Exit Sensor.
• Troubleshooting Guides: • Paper on the Top Tray Exit Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-115], Top Tray Exit Sensor (PL 24.38 Item 11). Select Start. Actuate the Top Tray Exit Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Top Tray Stacking. Check the circuit of the Top Tray Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Exit Motor Belt for wear or damage • Exit Drive Shaft Rolls for wear or damage • Exit Pinch Rollers for wear or damage • Synchronous Belt for wear or damage If the above checks are OK, then replace the Top Tray Exit Sensor. If the problem continues, replace the Finisher Main PWB.

• Code: 312.910
• Description: Staple Ready Sensor Fault. Staple Ready Sensor is turned off at stapling start.
• Troubleshooting Guides: Enter dc330 Component Control [012-243], Stapler Ready Sensor, (part of Stapler Assembly) (PL 24.33 Item 2). Select Start. Block/unblock the Stapler Ready Sensor. The display changed. Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Ready Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler (PL 24.33 Item 2). If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • Wiring between the Stapler and the Finisher PWB • Obstructions on the Stapler Upper Rail • Stapler Move Motor Gear If the above checks are OK. replace the Finisher Main PWB.

• Code: 312.911
• Description: Stacker Lower Safety Warning. The Height Alignment was not successful within 250msec when the Height Adjustment was performed for output paper to the Stacker Tray (Tray lowering down) in the middle of a job.
• Troubleshooting Guides: Remove all paper from the Stacker. If the problem continues, go to RAP 312.213 (SB).

• Code: 312.914
• Description: Stacker Tray Stapled Set Over Count. The Staple Set Count of the Stacker Tray has exceeded 50 sets during the Staple Set Eject operation
• Troubleshooting Guides: Remove all paper from the Stacker. If the problem continues, go to the RAP 312.161 (SB).

• Code: 312.916
• Description: Stapler NG. The Staple Home Sensor has not switched from Off to On within the specified time after the Staple Motor started rotating forward. The Staple Head Home Sensor turned On within xxx msec. after the Staple Motor reversed.
• Troubleshooting Guides: • The Actuator for deformation • The Staple Home Sensor for improper installation • The Staple Home Sensor connectors for connection failure • The Staple Guide for a foreign substance and deformation • The Staple Motor for operation failure • The Staple Motor connectors for connection failure
  Enter dc330 Component Control [012-046] and [012-047], Staple Motor (PL 24.33 Item 9), alternately. Select Start. The Staple Motor energizes. Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Assembly and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Assembly. If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-244], Staple Home Sensor, (part of Stapler Assembly) (PL 24.33). Select [012-046] and [012-047], Staple Motor (PL 24.33), alternately. Select Start. The display changes. Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Assembly. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.920
• Description: Paper at Gate Sensor (Top Tray Job). Control logic reports paper at the Gate Sensor.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check the Finisher Drive Motor Gears and Drive rolls for wear or damage
  Enter dc330 Component Control [012-102], Gate Sensor (PL 24.43 Item 19). Select Start. Actuate the Gate Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Gate Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Finisher is docked properly • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the Gate Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.921
• Description: Paper at Gate Sensor (Compiler Path Job). Control logic reports paper at the Gate Sensor.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check the Finisher Drive Motor Gears and Drive rolls for wear or damage
  Enter dc330 Component Control [012-102], Gate Sensor (PL 24.43 Item 19). Select Start. Actuate the Gate Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating Check the circuit of the Gate Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Finisher is docked properly • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the Gate Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.922
• Description: Paper at Gate Sensor (Buffer Path Job). Control logic reports paper at the Gate Sensor.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check the Finisher Drive Motor Gears and Drive rolls for wear or damage
  Enter dc330 Component Control [012-102], Gate Sensor (PL 24.43 Item 19). Select Start. Actuate the Gate Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Gate Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Finisher is docked properly • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the Gate Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.923
• Description: H-Transport Entrance Sensor Static Jam. During standby, paper was detected by the H-Transport Entrance Sensor.
• Troubleshooting Guides: Check the paper path. If no paper is found continue with this RAP.
  Execute dc330 Component Control [012-190], H-Transport Entrance Sensor. Actuate the HTransport Entrance Sensor (PL 23.4 Item 6). The display changes. Y↓ N→Check the wire between P/J8861 pin 2 and J8987 pin 6 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8987, pins 4 and 5 on the Finisher PWB (Finisher Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB (PL 23.16). Measure the voltage between J8987, pin 6 on the Finisher PWB and GND (Finisher Paper Transportation). Actuate the H-Transport Entrance Sensor. The voltage changes. Y↓ N→Replace the H-Transport Entrance Sensor (PL 23.4). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.925
• Description: Stacker Lower Safety Warning. Stack Height Sensor 1 Off is not detected 500ms after the stacker starts going down and this occurs three times.
• Troubleshooting Guides: Check for obstacles in the under the Stacker Tray. The problem is resolved. Y↓ N→Enter dc330 Component Control [012-264] Stacker Height Sensor 1. Select Start. Move the Stacker Tray manually. The display changes. Y↓ N→Go to Finisher Stack Height Detection. Check the circuit of Stack Height Sensor 1 (PL 24.31 Item 13). If the Sensor and wiring are OK, replace the Finisher Main PWB. Select Stop. Replace the Finisher Main PWB. If the problem continues, replace the Finisher Main PWB.

• Code: 312.932
• Description: Paper Remain at Gate Sensor (Compiler Path Job). Control logic reports paper at the Gate Sensor.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check the Finisher Drive Motor Gears and Drive rolls for wear or damage.
  Enter dc330 Component Control [012-102], Gate Sensor (PL 24.43 Item 19). Select Start. Actuate the Gate Sensor. The display changes. Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Gate Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the Finisher is docked properly. • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or misalignment. If the above checks are OK, then replace the Gate Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.935
• Description: Paper at Transport Entrance Sensor. Control logic reports paper at the Transport Entrance Sensor.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check that the Finisher is docked correctly to ensure proper Transport Gate operation
  Enter dc330 Component Control [012-100], Transport Entrance Sensor (PL 24.41 Item 19). Select Start. Actuate the Transport Entrance Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Transport, Top Tray Gating. Check the circuit of the Transport Entrance Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or alignment. • Check the Finisher Transport Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Transport Entrance Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.935
• Description: Paper at Finisher Entrance Sensor. Control logic reports paper at the Finisher Entrance Sensor.
• Troubleshooting Guides: • Check for obstructions in the paper path • Check that the Finisher is docked correctly to ensure proper Transport Gate operation.
  Enter dc330 Component Control [012-100], Finisher Entrance Sensor. Select Start. Actuate the Finisher Entrance Sensor. The display changes. Y↓ N→Check the wire between J8868 pin 2 and P/J8988 pin 2 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988 pins 3 and 1 on the Finisher PWB (Finisher Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988 pin 2 on the Finisher PWB and GND (Finisher Paper Transportation). Actuate the Finisher Entrance Sensor. The voltage changes. Y↓ N→Replace the Finisher Entrance Sensor (PL 23.14 Item 10). Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.936
• Description: Paper Remain In Booklet Sensor. The Booklet In Sensor detects paper present.
• Troubleshooting Guides: • Check for obstructions in the paper path. • Check that the Finisher is dock correctly to ensure proper Transport Gate operation. • Check the Booklet In Sensor (PL 24.57 Item 5) for obstructions. • Check for transportation failure of non-standard paper. • Check the Booklet In Roll for wear or damage.
  Enter dc330 Component Control [013-135], Booklet In Sensor (PL 24.57 Item 5). Select Start. Actuate the Booklet In Sensor. The display changes. Y↓ N→Go to Booklet Transportation. Check the circuit of the Booklet In Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select [013-068] and/or [013-069], Booklet Gate Solenoid (PL 24.42 Item 9). Select Start. The Booklet Gate Solenoid actuates. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check the circuit of the Booklet Gate Solenoid. Refer to the Set Gate Solenoid Open RAP for troubleshooting procedure. Select [013-064], Booklet Paper Path Motor (PL 24.58 Item 4). Select Start. The motor energizes. Y↓ N→Select Stop. Go to Booklet Drive. Check the circuit of the Booklet Paper Path Motor. Refer to the Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Check the H-Transport Motor and its associated gears and belts for damage, contamination or alignment. • Check the Booklet Paper Path Motor and its associated gears and belts for damage, contamination or alignment. If the above checks are OK, then replace the Booklet In Sensor (PL 24.57 Item 5). If the problem persists, replace the Finisher Main PWB.

• Code: 312.944
• Description: Stacker Set Over Full The Staple Set Count exceeded the maximum number of sheets on the Stacker Tray during the Staple Set Eject operation.
• Troubleshooting Guides: Remove all paper from the Stacker. Perform the job again. The problem is resolved Y↓ N→Replace the Finisher Main PWB. Check the following: • Eject Motor Gears for wear or damage. • Paddle Shaft and Paddles for wear or damage.

• Code: 312.945
• Description: Low Staples. The Low Staple Sensor turned On just before the Staple Motor started running.
• Troubleshooting Guides: • Stapler Head connectors for connection failure • Staple remaining amount
  Enter dc330 Component Control [012-242], Low Staple Sensor. Select Start. ‘LOW’ (staples available) is displayed. Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Head and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Assembly. If the problem continues, replace the Finisher Main PWB. If the problem continues, replace the Finisher Main PWB.

• Code: 312.946
• Description: Top Tray Full. The Top Tray Full Sensor was turned On for 10sec continuously.
• Troubleshooting Guides: • The Top Tray Full Sensor for improper installation • The Top Tray Full Sensor connectors for connection failure • The Top Tray Full Sensor Actuator for deformation and operation failure
  Enter dc330 Component Control [012-215], Top Tray Full Sensor, (PL 24.38 Item 9). Select Start. Actuate the Top Tray Full Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Top Tray Stacking Check continuity between the Top Tray Full Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Top Tray Full Sensor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.948
• Description: Puncher Waste Bin Nearly Full. Cumulative punching count reached the specified times (2-hole punching: 5000 times, 4-hole punching: 2500 times).
• Troubleshooting Guides: Remove the Puncher Waste Bin (PL 24.32 Item 29) and discard its dust. Install the Puncher Waste Bin. The problem is resolved. Y↓ N→Enter dc330 Component Control [012-275], Puncher Set Sensor (PL 24.32 Item 6). Select Start. Remove and insert the Puncher Waste Bin. The display changes. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check continuity between the Puncher Box Set Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Box Set Sensor. If the problem continues, replace the Finisher Main PWB. Select Stop. Replace the Finisher Main PWB. Ensure the Puncher Waste Bin is installed properly.

• Code: 312.949
• Description: Puncher Waste Bin Open. The Puncher Waste Bin Set Sensor detected Off (No Puncher Waste Bin).
• Troubleshooting Guides: • The Puncher Waste Bin Set Sensor for improper installation • The Puncher Waste Bin Set Sensor connectors for connection failure • The Puncher Waste Bin Actuator part for deformation and damage • The Guide for deformation • The Guide for a foreign substance
  Enter dc330 Component Control [012-275], Puncher Box Set Sensor (PL 24.32 Item 6). Select Start. Remove and insert the Puncher Waste Bin (PL 24.32 Item 29) manually. The display changes. Y↓ N→Select Stop. Go to Finisher Booklet/ Punch Transport. Check continuity between the Puncher Box Set Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Puncher Box Set Sensor. If the problem continues, replace the Finisher Main PWB. Check the Puncher Waste Box Actuator and Guide for deformation. The Puncher Waste Bin can be removed and inserted properly. Y↓ N→Repair or replace the Puncher Waste Bin (PL 24.32 Item 29). Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.949
• Description: Punch Box Missing. Punch Box Set Sensor detected Punch Box to be missing.
• Troubleshooting Guides: • Ensure that the Punch Box (PL 23.2 Item 11) is present and installed properly
  Enter dc330 Component Control [012-275], Punch Box Set Sensor (PL 23.5 Item 5). Select Start. Remove and insert the Punch Box manually. The display changes. Y↓ N→Select Stop. Check continuity between the Punch Box Set Sensor J8866, P8863, and the Finisher PWB J8987. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Punch Box Set Sensor (PL 23.5 Item 5). If the problem continues, replace the Finisher PWB. Check the Punch Box Set Sensor Actuator and Punch Box Guide for deformation. The Punch Box can be removed and inserted properly. Y↓ N→Repair or replace the Punch Box (PL 23.2 Item 11). Select Stop. If the problem continues, replace the Finisher PWB.

• Code: 312.959
• Description: Full Stack Detected. Stacker No Paper Sensor On was detected during the Stacker Tray height adjusting operation.
• Troubleshooting Guides: • The Stacker No Paper Sensor for improper installation • The Stacker No Paper Sensor connectors for connection failure • The Elevator Motor for operation failure • The Elevator Motor connectors for connection failure
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor UP (PL 24.31), alternately. Select Start. The Elevator Motor energizes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor (PL 24.31 Item 26). If the problem continues, replace the Finisher PWB Select Stop. Select [012-262], Stacker No Paper Sensor (PL 24.31 Item 32). Select Start. Block/unblock the Stacker No Paper Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Stacker No Paper Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Stacker No Paper Sensor. If the problem continues, replace the Finisher PWB Select [012-263], Stacker Encoder Sensor (PL 24.31 Item 32). Select Start. Block/unblock the Stacker Encoder Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive Check continuity between the Stacker Encoder Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Stacker Encoder Sensor. If the problem continues, replace the Finisher PWB Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.960
• Description: Full Stack Detected. Stacker No Paper Sensor On was detected during the Stacker Tray height adjusting operation.
• Troubleshooting Guides: • The Stacker No Paper Sensor for improper installation • The Stacker No Paper Sensor connectors for connection failure • The Elevator Motor for operation failure • The Elevator Motor connectors for connection failure
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor UP (PL 24.31 Item 26), alternately. Select Start. The Elevator Motor energizes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor (PL 24.31 Item 26). If the problem continues, replace the Finisher PWB Select [012-263], Stacker Encoder Sensor (PL 24.31 Item 32). Select Start. Block/unblock the Stacker Encoder Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive Check continuity between the Stacker Encoder Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Stacker Encoder Sensor. If the problem continues, replace the Finisher PWB Select Stop. Select [012-262], Stacker No Paper Sensor (PL 24.31 Item 32). Select Start. Block/unblock the Stacker No Paper Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive Check continuity between the Stacker No Paper Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Stacker No Paper Sensor. If the problem continues, replace the Finisher PWB Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.961
• Description: Mix Stack Detected.
• Troubleshooting Guides: • The Elevator Motor for operation failure • The Elevator Motor connectors for connection failure
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor Up (PL 24.31 Item 26), alternately. Select Start. The Elevator Motor energizes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor (PL 24.31 Item 26). If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.965
• Description: Stapler Near Empty • Low Staple Sensor On is detected during power On and Interlock Close • Low Staple Sensor On is detected right before the Staple Head Close operation
• Troubleshooting Guides: Check the Staple Cartridge. If the Staples are NOT low, go to the 312.291 (SB) RAP.

• Code: 312.966
• Description: Scratch Sheet Compile. Paper was detected that was either out of specification, in poor condition (wrinkled, curled) and was ejected to the compiler.
• Troubleshooting Guides: • Check that the Top Cover can be opened and closed. • Power Off/On.
  Check the specifications of paper. The paper is in spec. Y↓ N→Replace the paper with new paper that is in spec. Check the condition of the paper. The paper is in normal condition without any problem that causes the paper to be bent (dog eared) or jam. Y↓ N→Resolve any problem that causes the paper to be bent or caught. Check for a Fault Code. Another Fault Code is displayed. Y↓ N→If the problem continues, replace the Finisher PWB. Go to the appropriate Fault Code.

• Code: 312.969
• Description: IOT Center Tray Full. The H-Transport Entrance Sensor is detected to be On for 10 successive seconds.
• Troubleshooting Guides: Check the H-Transport Drive Rolls (PL 23.4) and Pinch Rolls (PL 23.3 Item 8) for wear or contamination. Check for obstructions or damage in the paper path. The Rolls and Paper Path are OK. Y↓ N→Clean or replace as required. Execute dc330 Component Control [012-190], H-Transport Entrance Sensor. Actuate the HTransport Entrance Sensor (PL 23.4 Item 6). The display changes. Y↓ N→Check the wire between P/J8861 pin 2 and J8987 pin 6 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8987, pins 4 and 5 on the Finisher PWB (Horizontal Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8987, pin 6 on the Finisher PWB and GND (Horizontal Paper Transportation). Actuate the H-Transport Entrance Sensor. The voltage changes. Y↓ N→Replace the H-Transport Entrance Sensor (PL 23.4 Item 6). Replace the Finisher PWB. Power Off. Open the H-Transport Top Cover. Cheat the H-Transport Interlock Sensor. Power On. The H-Transport Belt rotates. Y↓ N→Check the wires between P/J8862 on the H-Transport Motor and J8987 on the Finisher PWB for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the resistance of the H-Transport Motor between each pin J8862-1/2/5/6 (Horizontal Paper Transportation). The resistance is approx. 20 Ohm. Y↓ N→Replace the H-Transport Motor. Replace the Finisher PWB. If the problem persists, replace the H-Transport Motor. Check the H-Transport Entrance Sensor and H-Transport Motor circuits for an intermittent condition. If the problem continues, replace the Finisher PWB.

• Code: 312.978
• Description: Booklet Stapler NG. Error signal On and Ready signal On output from the Staple were detected after Booklet Stapling operation.
• Troubleshooting Guides: Check continuity between the Booklet PWB and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Staple. The problem resolved. Y↓ N→Replace the Booklet PWB (PL 24.51 Item 1). If the problem continues, replace the Finisher Main PWB. If the problem continues, replace the Finisher Main PWB.

• Code: 312.983
• Description: Booklet Tray Full was Detected. Booklet Tray Full was detected.
• Troubleshooting Guides: Remove all sets. Perform the job again. The problem is resolved. Y↓ N→Replace the Finisher Main PWB. If the problem continues, replace the Finisher Main PWB.

• Code: 312.984
• Description: Booklet Low Staple F. Booklet Stapler Low Staple Front signal was detected just before Stapling operation. Booklet Stapler Low Staple Front signal was detected at Power On, at initialization, or when the interlock was closed.
• Troubleshooting Guides: Supply the staples. The problem is resolved. Y↓ N→Enter dc330 Component Control [013-107], Booklet Low Staple Front. Select Start. ‘LOW’ (staples available) is displayed Y↓ N→Select Stop. Go to Booklet Staple Control. Check continuity between the Staple and Booklet PWB, and between the Booklet PWB and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Stapler Low Staple Front (PL 24.52). If the problem continues, replace the Finisher Main PWB. Select Stop. Replace the Finisher Main PWB. If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem continues, replace the Finisher Main PWB. If the problem persists, replace the Booklet PWB (PL 24.51 Item 1).

• Code: 312.989
• Description: Booklet Low Staple R. Booklet Stapler Low Staple Rear signal was detected just before Stapling operation. Booklet Stapler Low Staple Rear signal was detected at Power On, at initialization, or when the interlock was closed.
• Troubleshooting Guides: Supply the staples. The problem is resolved. Y↓ N→Enter dc330 Component Control [013-108], Booklet Low Staple Rear. Select Start. ‘LOW’ (staples available) is displayed Y↓ N→Select Stop. Go to Booklet Staple Control. Check continuity between the Staple and Booklet PWB, and between the Booklet PWB and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Booklet Stapler Low Staple Rear (PL 24.52). If the problem continues, replace the Finisher Main PWB. Select Stop. Replace the Finisher Main PWB. If the problem continues, replace the Booklet PWB (PL 24.51 Item 1). If the problem continues, replace the Finisher Main PWB. If the problem persists, replace the Booklet PWB (PL 24.51 Item 1).

• Code: 313.210
• Description: Booklet Staple Move Home Sensor On
• Troubleshooting Guides: Execute dc330 Component Control [013-143], Booklet Staple Move Home Sensor. Move the Booklet Staplers to block and unblock the Sensor (PL 23.18 Item 13). The display changes. Y↓ N→Check the wire between J8897 pin 2 and P/J8991 pin 2 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8991, pins 3 and 1 on the Booklet PWB (Booklet Staple Positioning). The voltage is approx. +5VDC. Y↓ N→Replace the Booklet PWB. Measure the voltage between P/J8991 pin 2 on the Booklet PWB and GND (Booklet Staple Positioning. Actuate the Booklet Staple Move Home Sensor. The voltage changes. Y↓ N→Replace the Booklet Staple Move Home Sensor (PL 23.18 Item 13). Replace the Booklet PWB. Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013- 029], Stapler Move Motor Out. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8992 pins 1~6 on the Booklet PWB and P/J8906 on the Booklet Stapler Move Motor Booklet Staple Positioning for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Monitor the voltage at P/J8994, pin 3 (Booklet Staple Positioning). Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013-029], Stapler Move Motor Out. An AC clock pulse is detected. Y↓ N→Check the wire between P/J8994, pin 3 and P/J8995 pin 4. If the wire is OK, replace the Finisher PWB. Replace the Booklet Stapler Move Motor. If the problem persists, replace the Booklet PWB.

• Code: 313.211
• Description: Booklet Staple Move Home Sensor Off
• Troubleshooting Guides: Procedure Execute dc330 Component Control [013-143], Booklet Staple Move Home Sensor. Move the Booklet Staplers to block and unblock the Sensor (PL 23.18 Item 13). The display changes. Y↓ N→Check the wire between J8897 pin 2 and P/J8991 pin 2 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8991, pins 3 and 1 on the Booklet PWB (Booklet Staple Positioning). The voltage is approx. +5VDC. Y↓ N→Replace the Booklet PWB. Measure the voltage between P/J8991 pin 2 on the Booklet PWB and GND (Booklet Staple Positioning). Actuate the Booklet Staple Move Home Sensor. The voltage changes. Y↓ N→Replace the Booklet Staple Move Home Sensor (PL 23.18 Item 13). Replace the Booklet PWB. Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013- 029], Stapler Move Motor Out. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8992 pins 1~6 on the Booklet PWB and P/J8906 on the Booklet Stapler Move Motor (Booklet Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Monitor the voltage at P/J8994, pin 3 (Booklet Staple Positioning). Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013-029], Stapler Move Motor Out. An AC clock pulse is detected. Y↓ N→Check the wire between P/J8994, pin 3 and P/J8995 pin 4. If the wire is OK, replace the Finisher PWB. Replace the Booklet Stapler Move Motor. If the problem persists, replace the Booklet PWB. Go to Booklet Staple Positioning and check for an intermittent circuit.

• Code: 313.212
• Description: Booklet Staple Move Position Sensor On Fault
• Troubleshooting Guides: Execute dc330 Component Control [013-144], Booklet Staple Move Position Sensor. Move the Booklet Stapler to block and unblock the Sensor (PL 23.18 Item 13). The display changes. Y↓ N→Check the wire between J8898 pin 2 and P/J8991 pin 5; and the wire between J8894, pin 5 and P/J8995 pin 5 for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8991, pins 6 and 4 on the Booklet PWB (Booklet Staple Positioning). The voltage is approx. +5VDC. Y↓ N→Replace the Booklet PWB. Measure the voltage between P/J8991 pin 5 on the Booklet PWB and GND (Booklet Staple Positioning). Actuate the Booklet Staple Move Position Sensor. The voltage changes. Y↓ N→Replace the Booklet Staple Move Position Sensor (PL 23.18 Item 13). Measure the voltage between J8985 pin 5 on the Finisher PWB and GND (Booklet Staple Positioning). Actuate the Booklet Staple Move Position Sensor. The voltage changes. Y↓ N→Replace the Booklet PWB. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB. Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013- 029], Stapler Move Motor Out. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8992 pins 1~6 on the Booklet PWB and P/J8906 on the Booklet Stapler Move Motor (Booklet Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Monitor the voltage at J8894, pin 3 (Booklet Staple Positioning). Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013-029], Stapler Move Motor Out. An AC clock pulse is detected. Y↓ N→Check the wire between J8894, pin 3 and P/J8995 pin 4. If the wire is OK, replace the Finisher PWB. Replace the Booklet Stapler Move Motor. If the problem persists, replace the Booklet PWB. Go to Booklet Staple Positioning and check for an intermittent circuit.

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• Code: 313.213
• Description: Booklet Staple Move Position Sensor Off Fault.
• Troubleshooting Guides: Execute dc330 Component Control [013-144], Booklet Staple Move Position Sensor. Move the Booklet Stapler to block and unblock the Sensor (PL 23.18 Item 13). The display changes. Y↓ N→Check the wire between J8898 pin 2 and P/J8991 pin 5; and the wire between P/J8994, pin 5 and J8985 pin 5 for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8991, pins 6 and 4 on the Booklet PWB (Booklet Staple Positioning). The voltage is approx. +5VDC. Y↓ N→Replace the Booklet PWB. Measure the voltage between P/J8991 pin 5 on the Booklet PWB and GND (Booklet Staple Positioning). Actuate the Booklet Staple Move Position Sensor. The voltage changes. Y↓ N→Replace the Booklet Staple Move Position Sensor (PL 23.18 Item 13). Measure the voltage between P8985 pin 5 on the Finisher PWB and GND (Booklet Staple Positioning). Actuate the Booklet Staple Move Position Sensor. The voltage changes. Y↓ N→Replace the Booklet PWB. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB. Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013- 029], Stapler Move Motor Out. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8992 pins 1~6 on the Booklet PWB and P/J8906 on the Booklet Stapler Move Motor (Booklet Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Monitor the voltage at J8894, pin 3 (Booklet Staple Positioning). Alternately execute dc330 Component Control [013-028], Stapler Move Motor In and [013-029], Stapler Move Motor Out. An AC clock pulse is detected. Y↓ N→Check the wire between J8894, pin 3 and P8985 pin 4. If the wire is OK, replace the Finisher PWB. Replace the Booklet Stapler Move Motor. If the problem persists, replace the Booklet PWB. Go to Booklet Staple Positioning and check for an intermittent circuit.

• Code: 313.220
• Description: Booklet Creaser Detect Fault.
• Troubleshooting Guides: Execute dc330 Component Control [013-160], Creaser Detected. The display is ‘Low.’ Y↓ N→There is less than 1 VDC at P/J8990 pin 4. Y↓ N→Check the wires between P/J8990 pins 4 and 5. Make sure that P/J8903 is securely fastened. Replace the Finisher PWB. Go to Folder Control and check for an intermittent circuit.

• Code: 313.306
• Description: Booklet Safety Switches Open
• Troubleshooting Guides: There is +24 VDC between P/J8993 pin 3 on the Booklet PWB and GND. Y↓ N→There is +24 VDC between P/J8993 pin 6 on the Booklet PWB and GND. Y↓ N→Go to the 313.307 (SB) RAP. Go to Booklet Interlock Switching and check the circuit through the Booklet Safety Switches (PL 23.21). Replace the Booklet PWB.

• Code: 313.307
• Description: Booklet Cover Open.
• Troubleshooting Guides: There is +24 VDC between P/J8993 pin 5 on the Booklet PWB and GND. Y↓ N→Go to Booklet Interlock Switching and check the circuit from P/J8993 to and from J8899 on the Booklet Stapler Cover Switch (PL 23.21). Replace the Booklet PWB.

• Code: 313.902
• Description: Paper Remains at Booklet Compiler No Paper Sensor
• Troubleshooting Guides: Go to 312.266 (C) to troubleshoot the fault.

• Code: 313.903
• Description: Paper Remains at Booklet Folder Roll Exit Sensor
• Troubleshooting Guides: Go to 312.115 (C) and/or 312.180 (C) to troubleshoot the Fault.

• Code: 324.916
• Description: Mix Stack Full
• Troubleshooting Guides: The following conditions may cause this error to be generated. • The size (SEF and LEF) of the last sheet that was output in the previous job is ‘unknown.’ • The specified capacity of sheets/sets is loaded in the stacker tray in Booklet Staple job. • The specified capacity of sheets/sets is loaded in the stacker tray in Booklet Non-Staple job. • When one Booklet Staple/Non-Staple job is completed. • When a Booklet Staple/Non-Staple job is started while mixed-size sheets are stacked in the stacker tray. • When a Booklet Staple/Non-Staple job, after which mixed-size sheets are stacked in the stacker tray, is started. If this chain link code is generated in error, check the following: • Check for obstructions in the paper path. • Defective stacker no paper sensor. (Stacker Tray Control) • Stacker Encoder SNR defective. (Stacker Tray Control) • Stacker Motor or drive system action defective. (Stacker Tray Control) • ‘Defective Finisher PWB. (Stacker Tray Control)

• Code: 324.917
• Description: Stacker Tray Staple Set Over Limit
• Troubleshooting Guides: During detection of staple sheet count, if over 50 sheets are detected (Stapling limit), this error will be generated. If this chain link code is generated in error, check the following: • Check for a defective stacker no paper sensor. See Stacker Tray Control. Execute dc330 Component Control [012-262], Stacker No Paper Sensor and repair or replace as necessary. • Defective wiring, Check the continuity of the wiring as shown in PWBS Communication from J8989 on the Finisher PWB to P/J590 on the MD PWB. • Defective Finisher PWB.

• Code: 324.926
• Description: Punch Box Set Fail. Punch Box Set Sensor detected Punch Box to be missing.
• Troubleshooting Guides: • Ensure that the Punch Box is present and installed properly.
  Enter dc330 Component Control [012-275], Punch Box Set Sensor (PL 23.5 Item 5). Select Start. Remove and insert the Punch Box manually. The display changes Y↓ N→Select Stop. Check continuity between the Punch Box Set Sensor J8866, J8863, and the Finisher PWB P8987. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Punch Box Set Sensor (PL 23.5 Item 5). If the problem continues, replace the Finisher PWB. Check the Punch Box Set Sensor Actuator and Punch Box Guide for deformation. The Punch Box can be removed and inserted properly. Y↓ N→Repair or replace the Punch Box (PL 23.2 Item 11). Select Stop. If the problem continues, replace the Finisher PWB.

• Code: 324.928
• Description: Scratch Sheet Compile. Paper was detected that was either out of spec, in poor condition (wrinkled, curled) and was ejected to the compiler. NOTE: This Code is an operation message. If this fail code is frequently declared, perform the procedure below.
• Troubleshooting Guides: • Check that the Top Cover can be opened and closed. • Power Off/On.
  Check the specifications of paper. The paper is in specification. Y↓ N→Replace the paper with new paper that is in the specification. Check the condition of the paper. The paper is in normal condition without any problem that causes the paper to be bent (dog eared) or jam. Y↓ N→Resolve any problem that causes the paper to be bent or caught. Check for a Fault Code. Another Fault Code is displayed. Y↓ N→If the problem continues, replace the Finisher PWB. Go to the appropriate Fault Code.

• Code: 324.963
• Description: Punch Dust Box Full
• Troubleshooting Guides: Empty the Punch Box (PL 23.2 Item 11) and re-insert. If the fault remains, check the circuit of the Punch Box Set Sensor (Punch Control).

• Code: 324.976
• Description: Staple NG
• Troubleshooting Guides: 1. Lack of stapler penetration force when media outside the spec is used. 2. Staple jam (staple remains in the staple cartridge). 3. Whether foreign matter is around the Stapler in the Compile Tray. 4. Stapler unit failure. 5. Harness or PWBA failure. NOTE: When the penetration force is not enough for the media desired, the maximum number of sheets in a set to be stapled can be reduced with NVM. (763-630)

• Code: 324.977
• Description: Stapler Feed Ready Fail. After a new cartridge is inserted, the stapler will make 13 attempts to feed staples before generating this error.
• Troubleshooting Guides: Check the following: 1. Whether a staple cartridge is mis-installed. 2. Stapler pin jam (staple pin remains in the staple cartridge). 3. Whether foreign matter is in the transport area of staple pins in the Stapler Unit. 4. Whether a staple cartridge is deformed or damaged. 5. Stapler Unit failure. 6. Harness or PWBA failure.

• Code: 324.978
• Description: Booklet Front Stapler or Rear Stapler NG
• Troubleshooting Guides: Check the followings: 1. Lack of penetration force of Booklet Stapler when media outside the spec is used. 2. The position of Booklet Front or Rear Stapler (upper) and that of Clincher (lower) do not match each other due to the deformation of Booklet Unit. 3. Staple pin jam (staple pin remains in the staple cartridge). 4. Whether foreign matter is around the Booklet Front or Rear Stapler in the Booklet Unit. 5. Booklet Front or Rear Stapler Unit failure. 6. Harness or PWBA failure. NOTE: When the penetration force is not enough, the maximum number of sheets in a set to be stapled should be reduced with NVM. (763-710)

• Code: 324.979
• Description: Stapler Near Empty
• Troubleshooting Guides: • Low Staple Sensor On is detected during power On and Interlock Close • Low Staple Sensor On is detected right before the Staple Head Close operation
  Check the Staple Cartridge. If the Staples are NOT low, go to RAP 312.291 (SB).

• Code: 324.980
• Description: Stacker Tray Full Stack
• Troubleshooting Guides: Check any of the following cases: 1. At power-on, Stacker Height SNR detects stacking height and full-stack position. An erroneous detection could be the cause, see RAP 312.212 (SB) for troubleshooting procedure. 2. During height adjustment of stacker tray while printing (lowering) for small-size paper output, the full-stack position is detected. 3. During height adjustment of stacker tray while printing (lowering) for large-size paper output, the half-stack position (full-stack position for large-size paper) is detected. 4. When the half-stack position (full-stack position for large-size paper) has been already detected during printing with small size paper, paper with half-stack limitation (large-size paper) is attempted to be outputted.

• Code: 324.982
• Description: Stacker Lower Safety Warning. During the job, if the height of paper output to stacker tray cannot be adjusted (lowered) within the specified time within three tries, this error will be generated.
• Troubleshooting Guides: Check any of the following causes: 1. Whether an obstacle is under the Stacker Tray. 2. Whether excessive load is applied on the Stacker Tray since the obstacle is in contact with the Stacker Tray. 3. Whether excessive load is applied on the Stacker Tray since the obstacle is in contact with the Stacker Tray. 4. Whether Stacker Motor or its drive parts fail to operate normally. 5. Harness or PWBA failure.

• Code: 324.984
• Description: Booklet Low Staple F. When booklet cover is opened / closed, Booklet Low Staple Switch F detect whether staples are present or not.
• Troubleshooting Guides: If this fault occurs at an unexpected time or if this fault does not occur at expected timing, check the following: 1. Failure of Booklet Low Staple SW F in the Booklet Front Stapler Unit. 2. Whether a staple cartridge is deformed or damaged. 3. Whether a staple cartridge is deformed or damaged. 4. Harness or PWBA failure.

• Code: 324.989
• Description: Booklet Low Staple R. When booklet cover is opened/ closed, Booklet Low Staple Switch F detect whether staples are present or not.
• Troubleshooting Guides: If this fault occurs at an unexpected time or if this fault does not occur at expected timing, check the following: 1. Failure of Booklet Low Staple SW R in the Booklet Rear Stapler Unit. 2. Whether a staple cartridge is deformed or damaged. 3. Whether the storage area of staple cartridge in the Booklet Rear Stapler is deformed or damaged. 4. Harness or PWBA failure.

• Code: 341.310
• Description: IM Logic Fault. The IM software control error was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Verify the current version and check for any updates. 3. Install the correct version of the IOT firmware. 4. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 341.316
• Description: IH Driver Interface Fault. Interface error between the MCU PWB and the IH Driver has occurred (at the IH Driver).
• Troubleshooting Guides: 1. Turn the power Off and check the connection between the IH Driver P/J530 and the MCU PWB P/J414 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • IH Driver PWB • MCU PWB

• Code: 341.317
• Description: MCU IH Interface Fault. Interface error between the MCU PWB and the IH Driver has occurred (at the MCU).
• Troubleshooting Guides: 1. Turn the power Off and check the connection between the MCU PWB P/J414 and the IH Driver P/J530 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MCU PWB • IH Driver PWB

• Code: 341.325, 341.330
• Description: MCU PWB F2 Open. Fuse 2 on the MCU PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Suction Fan • Bottom Fan • M Fan • 1st BTR Contact Retract Clutch (PL 3.2 Item 12) 2. Turn the power Off and replace the MCU PWB.

• Code: 341.326, 341.331
• Description: MCU PWB F3 Open. Fuse 3 on the MCU PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • IH Exhaust Fan • Process 2 Fan • Erase Lamp Unit (C, M, Y, K) • MOB ADC Assembly 2. Turn the power Off and replace the MCU PWB.

• Code: 341.327, 341.332
• Description: MCU PWB F4 Open. Fuse 4 on the MCU PWB has blown.
• Troubleshooting Guides: 1. Check the C Fan circuits for overcurrent and overvoltage, and then replace the faulty part or repair the circuits. 2. Turn the power Off and replace the MCU PWB.

• Code: 341.328, 341.333
• Description: MCU PWB F5 Open. Fuse 5 on the MCU PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • HVPS (1st/2nd/DTC) • HVPS (BCR) • HVPS (Dev) 2. Turn the power Off and replace the MCU PWB.

• Code: 341.340
• Description: MCU NVM (EEPROM) Data Fault. The specific values of the NVM (EEPROM) data are not in their specified addresses.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 341.341
• Description: MCU NVM (EEPROM) Access Fault. NVM (EEPROM) access error (The read values are different from those that were written, or there is I2C communication error).
• Troubleshooting Guides: 1. Turn the power Off and check whether there is poor connection between the EEPROM and the MCU PWB. If no problems are found, replace the MCU PWB.

• Code: 341.342
• Description: MCU NVM (EEPROM) Buffer Fault. NVM (EEPROM) buffer Fault (The write buffer has overflowed).
• Troubleshooting Guides: 1. Turn the power Off and check whether there is poor connection between the EEPROM and the MCU PWB. If no problems are found, replace the MCU PWB.

• Code: 341.345
• Description: MD PWB F2 Open. Fuse 2 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • LPH Unit (Y, M, C, K) • LPH Rear PWB (Y, M, C, K) 2. Turn the power Off and replace the MD PWB.

• Code: 341.346
• Description: MD PWB F3 Open. Fuse 3 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Tray Module PWB (PL 10.9 Item 1) 2. Turn the power Off and replace the MD PWB.

• Code: 341.347
• Description: Serial I/O Fault.
• Troubleshooting Guides: 1. Turn the power Off and check the connector ( P/J452) between the MD PWB and the MCU PWB for poor connection. If no problems are found, replace the following parts in sequence: • MCU PWB • MD PWB

• Code: 341.348
• Description: MD PWB F4 Open. Fuse 4 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the following Tray Module PWB parts circuits for overcurrent and overvoltage, and then replace the faulty part or repair the circuits. 2. Turn the power Off and replace the MD PWB.

• Code: 341.349
• Description: MD PWB F6 Open. Fuse 6 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Take Away Motor • Tray 2 Feed/Lift Up Motor (PL 9.4 Item 3) • P/R Latch Motor (PL 7.1 Item 4) • Agitator Motor 2. Turn the power Off and replace the MD PWB.

• Code: 341.350
• Description: MD PWB F7 Open.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Fuser Fan • Front LVPS Fan • IH Intake Fan • C Exit Fan • Process 1 Fan 2. Turn the power Off and replace the MD PWB.

• Code: 341.351
• Description: MD Detect Fault. The MD PWB is not installed.
• Troubleshooting Guides: 1. Turn the power Off and check the connector ( P/J452) between the MD PWB and the MCU PWB for poor connection. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 341.352
• Description: MD PWB F5 Open. Fuse 5 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the Finisher circuit for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. 2. Turn the power Off and replace the MD PWB.

• Code: 341.353
• Description: MD PWB F8 Open. Fuse 8 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Tray 1 Feed/Nudger Motor (PL 13.2 Item 6) • Exit 2 Drive Motor (PL 17.4 Item 5) • Duplex Motor 2. Turn the power Off and replace the MD PWB.

• Code: 341.354
• Description: MD PWB F9 Open. Fuse 9 on the MD PWB has blown.
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Toner Dispense Motor (Y, M, C, K) (PL 5.1 Item 7) 2. Turn the power Off and replace the MD PWB.

• Code: 341.355
• Description: MD PWB F10 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • 2nd BTR Contact Retract Motor • DC Heater (PL 14.3 Item 23) • LH Fan PWB or LH Fan 1/2/3 2. Turn the power Off and replace the MD PWB.

• Code: 341.356
• Description: MD PWB F11 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Fuser Drive Motor (PL 3.1 Item 10) • Main Drive Motor (PL 3.2 Item 26) 2. Turn the power Off and replace the MD PWB.

• Code: 341.357
• Description: MD PWB F12 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Drum/Dev Drive Motor (K) • IBT Drive Motor Assembly (PL 3.3 Item 4) 2. Turn the power Off and replace the MD PWB.

• Code: 341.358
• Description: MD PWB F13 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Drum Drive Motor (Y, M, C) • Dev Drive Motor (Y, M, C) 2. Turn the power Off and replace the MD PWB.

• Code: 341.359
• Description: MD PWB F14 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Face Up Gate Solenoid (PL 17.5 Item 2) • Exit 1 OCT Motor (PL 17.2 Item 4) 2. Turn the power Off and replace the MD PWB.

• Code: 341.360
• Description: MD PWB F15 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Exit 2 Gate Solenoid (PL 17.5 Item 10) • Exit 2 OCT Motor (PL 17.5 Item 11) 2. Turn the power Off and replace the MD PWB.

• Code: 341.361
• Description: MD PWB F16 Open
• Troubleshooting Guides: 1. Check the following parts circuits for overcurrent and overvoltage, and then replace the faulty parts or repair the circuits. • Registration Clutch 2. Turn the power Off and replace the MD PWB.

• Code: 341.368
• Description: MCU-SW Firmware Mismatch. The MCU software for the Phaser 7800 model is installed in the 7525/30/35 model. Or, the MCU software for the 7525/30/35 model is installed in the Phaser 7800 model.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 341.369
• Description: MD Type Mismatch. The MD PWD for the Phaser 7800 model is installed in the 7525/30/35 model. Or, the MD PWD for the 7525/30/35 model is installed in the Phaser 7800 mode
• Troubleshooting Guides: 1. Turn the power Off and replace with the correct MD PWB.

• Code: 342.320
• Description: Drum Y, M, C Motor Fail. The Drum Drive Motor (Y, M, C) revolution failure was detected.
• Troubleshooting Guides: Turn the power Off and open the Front Cover. Remove the Drum (Y, M, C) and close the Front Cover. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [091-027] (Drum Drive Motor Y, M, C). Does the Drum Drive Motor (Y, M, C) rotate? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Turn the power ON. Is the voltage between the MD PWB P/J526-3 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Is the voltage between the MD PWB P/J527-A16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Turn the power Off and check the connections between the MD PWB P/J526 and the Drum Drive Motor (Y, M, C) P/J246, as well as between the MD PWB P/J527 and the Drum Drive Motor (Y, M, C) P/J247 for open circuits, short circuits, and poor contacts. If no problems are found, replace the following parts in sequence: • Drum Drive Motor (Y, M, C) • MD PWB • MCU PWB Press the Stop button and open the Front Cover. Install the Drum (Y, M, C) and close the Front Cover. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [091-027] (Drum Drive Motor Y, M, C). Does the Drum Drive Motor (Y, M, C) rotate? Y↓ N→Check the Drum (Y, M, C) for loading. Press the Stop button and turn the power Off. Check the connection between the Drum Drive Motor (Y, M, C) P/J247-8 and the MD PWB P/J527-A9 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 342.323
• Description: Drum K Motor Fail. The Drum/Developer Drive Motor (K) revolution failure was detected.
• Troubleshooting Guides: Turn the power Off and remove the Front Cover. Remove the Drum (K) and the Developer (K) and cheat the Front Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [091-033] (Drum/Developer Drive Motor K). Does the Drum/Developer Drive Motor (K) rotate? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Turn the power ON. Is the voltage between the MD PWB P/J526-1 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Is the voltage between the MD PWB P/J527-A8 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Turn the power Off and check the connections between the MD PWB P/J526 and the Drum/Developer Drive Motor (K) P/J240, as well as between the MD PWB P/J527 and the Drum/Developer Drive Motor (K) P/J241 for open circuits, short circuits, and poor contacts. If no problems are found, replace the following parts in sequence: • Drum/Developer Drive Motor (K) • MD PWB • MCU PWB Press the Stop button and turn the power Off. Install the Drum (K), the Developer (K), and the Front Cover. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [091-033] (Drum/Developer Drive Motor K). Does the Drum/Developer Drive Motor (K) rotate? Y↓ N→Check the Drum (K) and the Developer (K) for loading Press the Stop button and turn the power Off. Check the connection between the Drum/Developer Drive Motor (K) P/J241-8 and the MD PWB P/J527-A1 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 342.324
• Description: IBT Motor Fail. The IBT Drive Motor revolution failure was detected.
• Troubleshooting Guides: Turn the power Off. Remove the IBT Unit and cheat the L/H Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [094-006] (IBT Drive Motor). Does the IBT Drive Motor rotate? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J526-5 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Is the voltage between the MD PWB P/J527-B8 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Turn the power Off and check the connections between the MD PWB P/J526 and the IBT Drive Motor P/J248, as well as between the MD PWB P/J527 and the IBT Drive Motor P/ J249 for open circuits, short circuits, and poor contacts. If no problems are found, replace the following parts in sequence: • IBT Drive Motor • MD PWB • MCU PWB Press the Stop button and turn the power Off. Install the IBT Unit and close the L/H Cover. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [094-006] (IBT Drive Motor). Does the IBT Drive Motor rotate? Y↓ N→Check the IBT Drive for loading. Also, check the IBT for loading due to blockage in the IBT Waste Toner Collection Auger Press the Stop button and turn the power Off. Check the connection between the IBT Drive Motor P/J249-8 and the MD PWB P/J527-B1 for open circuit, short circuit, and poor contact. If no problems are found, replace the MD PWB.

• Code: 342.325
• Description: Main Motor Fail.
• Troubleshooting Guides: Turn the power Off. Remove the IBT Unit and cheat the L/H Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-002] (Main Drive Motor). Does the Main Drive Motor rotate? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J535-1 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Is the voltage between the MD PWB P/J525-A16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Turn the power Off and check the connections between the MD PWB P/J535 and the Main Drive Motor P/J244, as well as between the MD PWB P/J525 and the Main Drive Motor P/J245 for open circuits, short circuits, and poor contacts. If no problems are found, replace the following parts in sequence: • Main Drive Motor • MD PWB • MCU PWB Press the Stop button and turn the power Off. Install the IBT Unit and close the L/H Cover. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-002] (Main Drive Motor). Does the Main Drive Motor rotate? Y↓ N→Check the 2nd BTR for loading and the Drive Gear for revolution failure or damage Press the Stop button. Turn On dc330 Component Control [042-002] (Main Drive Motor), then turn On dc330 Component Control [077-001] (Takeaway Clutch). Turn On DC330 [042-002] (Main Drive Motor), then turn On DC330 [077-050] (Takeaway Motor). Does the Main Drive Motor rotate? Y↓ N→Press the Stop button. Turn On dc330 Component Control [042-002] (Main Drive Motor), then turn On DC330 [077-002] (Registration Clutch). Does the Main Drive Motor rotate? Y↓ N→Check the Registration Roll for loading and the Drive Gear for revolution failure or damage Press the Stop button and turn the power Off. Check the connection between the Main Drive Motor P/J245-8 and the MD PWB P/J525-A9 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWBCheck the Tray 1 Takeaway Roll and the Tray 1 Takeaway Roll for loading and the Drive Gear for revolution failure or damage

• Code: 342.330
• Description: IH Exhaust Fan Fail. The IH Exhaust Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.326/ 341.331 faults (MCU PWB F3 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Rotate the IH Exhaust Fan manually to check for loading. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the IH Exhaust Fan rotating and does the test return an IH Exhaust Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J414-B1 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the IH Exhaust Fan P/J225 and the MCU PWB P/J414 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • IH Exhaust Fan • MCU PWB Replace the IH Exhaust Fan. Press the Stop button and turn the power Off. Check the connection between the IH Exhaust Fan P/J225-3 and the MCU PWB P/J414-B3 for open circuit, short circuit, and poor contact. If no problems are found, replace the MCU PWB. Go to the 341.326/ 341.331 RAP.

• Code: 342.332
• Description: IH Intake Fan Fail. The IH Intake Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.350 faults (MD PWB F7 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Rotate the IH Intake Fan manually to check for loading. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the IH Intake Fan rotating and does the test return a IH Intake Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MD PWB P/J529-B9 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MD PWB. Turn the power Off and check the connection between the IH Intake Fan P/J226 and the MD PWB P/J529 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • IH Intake Fan (PL 4.1) • MD PWB • MCU PWB Replace the IH Intake Fan. Press the Stop button and turn the power Off. Check the connection between the IH Intake Fan J226-2 and the MD PWB P/J529-B11 for open circuit, short circuit, and poor contact. If no problems are found, replace the MD PWB. Go to the 341.350 RAP.

• Code: 342.334
• Description: IBT Fan Fail. The IBT Fan 1, 2 error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.327/ 341.332 faults (MCU PWB F4 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Open the Front Cover and cheat the Front Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-019] (IBT Fan). Does the IBT Fan1, 2 rotate? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J416-3/7 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the IBT Fan 1 J232 and the MCU PWB P/J416, as well as between the IBT Fan 2 P/J236 and the MCU PWB P/ J416 for open circuits, short circuits, and poor contacts. If no problems are found, replace the following parts in sequence: • IBT Fan 1 • IBT Fan 2 • MCU PWB Press the Stop button and turn the power Off. Check the connection between the IBT Fan 1 J232-2 and the MCU PWB P/J416-5, as well as between the IBT Fan 2 P/J236-2 and the MCU PWB P/J416-9 for open circuits, short circuits, and poor contacts. If no problems are found, replace the MCU PWB. Go to the 341.327/ 341.332 RAP.

• Code: 342.335
• Description: Process 1 Fan Fail. The Process 1 Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.350 faults (MD PWB F7 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Open the Front Cover and cheat the Front Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Process 1 Fan rotating and does the test return a Process 1 Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MD PWB P/J537-1 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MD PWB. Turn the power Off and check the connection between the Process 1 Fan P/J228 and the MD PWB P/J537 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Process 1 Fan • MD PWB Replace the Process 1 Fan. Press the Stop button and turn the power Off. Check the connection between the Process 1 Fan P/J228-2 and the MD PWB P/J537-3 for open circuit, short circuit, and poor contact. If no problems are found, replace the MD PWB. Go to the 341.350 RAP.

• Code: 342.336
• Description: Process 2 Fan Fail. The Process 2 Fan error was detected.
• Troubleshooting Guides: Y N Turn the power Off and remove the Rear Upper Cover. Open the Front Cover and cheat the Front Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Process 2 Fan rotating and does the test return a Process 2 Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J416-11 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the Process 2 Fan P/J238 and the MCU PWB P/J416 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Process 2 Fan • MCU PWB Replace the Process 2 Fan. Press the Stop button and turn the power OFF. Check the connection between the Process 2 Fan P/J238-2 and the MCU PWB P/J416-13 for open circuit, short circuit, and poor contact. If no problems are found, replace the MCU PWB. Go to the 341.326/ 341.331 RAP.

• Code: 342.338
• Description: LVPS Front Fan Fail. An abnormality was detected in the LVPS Front Fan.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.350 faults (MD PWB F7 Open) occurred? Y↓ N→Turn the power Off and remove the Right Cover and Rear Upper Cover. Disconnect and reconnect P/J239. Rotate the Front LVPS Fan manually to check for loading. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Front LVPS Fan rotating and does the test return a LVPS Front Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MD PWB P/J529-A13 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MD PWB. Turn the power Off and check the connection between the Front LVPS Fan P/J239 and the MD PWB P/J529 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Front LVPS Fan • MD PWB Replace the Front LVPS Fan. Press the Stop button and turn the power Off. Check the connection between the Front LVPS Fan P/J239-2 and the MD PWB P/J529-A14 for open circuit, short circuit, and poor contact. If no problems are found, replace the MD PWB. Go to the 341.350 RAP.

• Code: 342.340
• Description: Cartridge Fan Fail.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.327/ 341.332 faults (MCU PWB F4 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Open the Front Cover and cheat the Front Cover Interlock Switch. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Cartridge Fan rotating and does the test return a Cartridge Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J416-7 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the Cartridge Fan P/J619 and the MCU PWB P/J416 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Cartridge Fan • MCU PWB Replace the Cartridge Fan. Press the Stop button and turn the power Off. Check the connection between the Cartridge Fan P/J619-2 and the MCU PWB P/J416-9 for open circuit, short circuit, and poor contact. If no problems are found, replace the MCU PWB. Go to the 341.327/ 341.332 RAP.

• Code: 342.341
• Description: M HVPS Fan Fail. The M Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.325/ 341.330 faults (MCU PWB F2 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the HVPS Fan or the M Fan rotating and does the test return a M HVPS Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J417-A10 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the HVPS/M Fan P/J235 and the MCU PWB P/J417 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • M HVPS Fan • MCU PWB Replace the H HVPS Fan. Press the Stop button and turn the power Off. Check the connection between the HVPS/M Fan P/J235-3 and the MCU PWB P/J417- A12 for open circuit, short circuit, and poor contact. If no problems are found, replace the MCU PWB. Go to the 341.325/ 341.330 RAP.

• Code: 342.342
• Description: Suction Fan Fail. The Suction Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.325/ 341.330 faults (MCU PWB F2 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Rotate the Suction Fan manually to check for loading. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Suction Fan rotating and does the test return a Suction Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J417-A1 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the Suction Fan P/J231 and the MCU PWB P/J417 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Suction Fan • MCU PWB Replace the Suction Fan. Press the Stop button and turn the power Off. Check the connection between the Suction Fan P/J231-2 and the MCU PWB P/J417-A3 for open circuit, short circuit, and poor contact. If no problems are found, replace the MCU PWB. Go to the 341.325/ 341.330 RAP.

• Code: 342.343
• Description: Rear Bottom Fan Fail. The Bottom Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.325/ 341.330 faults (MCU PWB F2 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Rotate the Bottom Fan manually to check for loading. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Is the Bottom Fan rotating and does the test return a Rear Bottom Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MCU PWB P/J417-B11 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MCU PWB. Turn the power Off and check the connection between the Bottom Fan P/J234 and the MCU PWB P/J417 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Bottom Fan • MCU PWB Replace the Bottom Fan. Press the Stop button and turn the power Off. Check the connection between the Bottom Fan P/J234-2 and the MCU PWB P/J417-B13 for open circuit, short circuit, and poor contact. If no problems are found, replace the MCU PWB. Go to the 341.325/ 341.330 RAP.

• Code: 342.344
• Description: C Exit Fan Fail. The C Exit Fan error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 341.350 faults (MD PWB F7 Open) occurred? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Disconnect the connector P592 of the MD PWB and open the Chassis Assembly. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042–025] (NOHAD FAN Failure Detection). Is the C Exit Fan rotating and does the test return a C Exit Fan error? Y↓ N→When the Diag is turned On, is the voltage between the MD PWB P/J529-B13 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MD PWB. Turn the power Off and check the connection between the C Exit Fan P/J227 and the MD PWB P/J529 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • C Exit Fan • MD PWB Replace the C Exit Fan. Press the Stop button and turn the power Off. Check the connection between the C Exit Fan P/J227-2 and the MD PWB P/J529-B15 for open circuit, short circuit, and poor contact. If no problems are found, replace the MD PWB. Go to the 341.350 RAP.

• Code: 342.400
• Description: Deodorant Filter Life End. The Deodorant Filter must be replaced.
• Troubleshooting Guides: Replace the Deodorant Filter and clear the dc135 CRU/HFSI Read & Reset [954-860].

• Code: 342.604
• Description: NOHAD Temperature Sensor Fail. The NOHAD Thermistor error was detected.
• Troubleshooting Guides: Turn the power Off and check the connection between the NOHAD Thermistor P/J130 and the MCU PWB P/J414 for open circuit, short circuit, and poor contact. Also check whether there is poor connection or foreign substances at the detection section of the NOHAD Thermistor. If no problems are found, replace the following parts in sequence: • NOHAD Thermistor • MCU PWB

• Code: 342.609
• Description: LH Fan Fail. The LH Fan 1-3 error was detected.
• Troubleshooting Guides: Enter dc122 Fault History. Has 041-355 faults (MD PWB F10 Open) occurred? Y↓ N→Turn the power Off. Open the L/H Cover and cheat the L/H Cover Interlock Switch. Disconnect and reconnect the LH Fan PWB P/J453, P/J454, LH Fan 2 P/J217, and LH Fan 3 P/J218. Rotate the LH Fan 1-3 manually to check for loading. Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [042-025] (NOHAD FAN Failure Detection). Are the LH Fan 1-3 rotating and does the test return a LH 1, 2, 3 Fan error? Y↓ N→Press the Stop button. Is the voltage between the LH Fan PWB J450-5 (+) and the GND (-) +24VDC? Y↓ N→Remove the Rear Upper Cover. Is the voltage between the MD PWB J523- B13 (+) and the GND (-) +24VDC? Y↓ N→Turn the power Off and replace the MD PWB. Turn the power Off and check the connection between the MD PWB P/J523 and the LH Fan PWB P/J450 for open circuit, short circuit, and poor contact. Turn On dc330 Component Control [042-026] (LH Fan) and measure the following voltages: • Between the LH Fan PWB P/J453-1 (+) and the GND (-) (LH Fan 1) • Between the LH Fan PWB P/J454-1 (+) and the GND (-) (LH Fan 2) • Between the LH Fan PWB P/J454-5 (+) and the GND (-) (LH Fan 3) Is the voltage +24VDC? Y↓ N→Turn the power Off and check the connection between the MD PWB P/J523 and the LH Fan PWB P/J450 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • LH Fan PWB • MD PWB • MCU PWB Press the Stop button and turn the power Off Check the following connectors for open circuits, short circuits, and poor contacts. • Between the LH Fan PWB P/J454 and the LH Fan 2 P/J217 • Between the LH Fan PWB P/J454 and the LH Fan 3 P/J218 If no problems are found, replace the appropriate LH Fan (1-3). Replace the LH Fan. Press the Stop button. Turn the power Off and check the following: • Check the connection between the LH Fan 2 P/J217-3 and the LH Fan PWB P/ J454-3 for open circuit, short circuit, and poor contact. • Check the connection between the LH Fan 3 P/J218-3 and the LH Fan PWB P/ J4544-7 for open circuit, short circuit, and poor contact. • Check the connection between the LH Fan PWB P/J450-2 and the MD PWB P/ J523-B16 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • LH Fan PWB • MD PWB Go to the 341.355 RAP.

• Code: 345.310
• Description: Image Ready NG. The Controller image preparation failure was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check whether there is poor connection or foreign substances at the following connectors. • Between BP PWB and MCU PWB P/J451 • Between BP PWB J335 and I/P PWB P335 • Between BP PWB J309 and I/P PWB P309 If no problems are found, replace the following parts in sequence: • BP PWB • MCU PWB

• Code: 345.311
• Description: Controller Communication Fault. Communication error between I/P PWB and MCU PWB was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check whether there is poor connection or foreign substances at the following connectors. • Between BP PWB and MCU PWB P/J451 • Between BP PWB J335 and I/P PWB P335 • Between BP PWB J309 and I/P PWB P309 If no problems are found, replace the following parts in sequence: • BP PWB • MCU PWB

• Code: 345.312
• Description: Drive Logic Fault A fatal error was detected in Drive control.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.313
• Description: ENG_LOGIC_FAIL Engine internal mismatch (control logic mismatch)
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.321
• Description: MK_Panel_NG. Communication error between IM and MK (when receiving Pitch Check, the corresponding Panel Build is not received)
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.322
• Description: MK_Pitch_NG. Communication error between IM and MK (when receiving Pitch Notify, the corresponding Pitch Check is not received)
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.331
• Description: MK_MKIF_MSG_Reject. Communication error between IM and MK (the received message was rejected).
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.332
• Description: MK_MMIF_MSG_Reject. Communication error between MM and Sub Module (the received message was rejected).
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.350
• Description: MK_Emergency_Over_Wait. MK internal mismatch (panel creation is obstructed continuously over the predetermined time).
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.351
• Description: MK_Emergency_No_Timer. MK internal mismatch (Call Back Timer has ran out and can’t be controlled).
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.352
• Description: MK_Emergency_Enforced_Stop. MK internal mismatch (the MM has performed a forced stop process).
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Install the correct version of the IOT firmware. 3. Initialize the IOT NVM (includes writing back the adjustment NVM). If the problem persists, replace the MCU PWB.

• Code: 345.370
• Description: LPH Power On Fault Multi. Power source error during LPH batch download complete verification or MCU error. (Fail has occurred in multiple LPHs.)
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J532-4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532-2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532-2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Turn the power Off and check the following connectors for open circuit, short circuit, and poor connection. • Between MCU PWB P/J557 and LPH Rear PWB P/J561 • Between MCU PWB P/J556 and LPH Rear PWB P/J560 • Between MCU PWB P/J555 and LPH Rear PWB P/J559 • Between MCU PWB P/J554 and LPH Rear PWB P/J558 If no problems are found, replace the MCU PWB. If the problem persists, refer to dc131 NVM Read/Write [749-001] (LPH Fail Color) to go to the appropriate RAP. (1: Error has occurred at Y, 2: Error has occurred at M, 4: Error has occurred at C, 8: Error has occurred at K) • Y color: 361.350 RAP • M color: 361.351 RAP • C color: 361.352 RAP • K color: 361.353 RAP

• Code: 345.371
• Description: LPH Download Data Fault Multi. DELSOL register error during the LPH batch download complete verification or connector error. (Fail has occurred in multiple LPHs.)
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power ON. Is the voltage between the MD PWB P/J532-4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532-2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532-2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Turn the power Off and check the following connectors for open circuit, short circuit, and poor connection. • Between MCU PWB P/J557 and LPH Rear PWB P/J561 • Between MCU PWB P/J556 and LPH Rear PWB P/J560 • Between MCU PWB P/J555 and LPH Rear PWB P/J559 • Between MCU PWB P/J554 and LPH Rear PWB P/J558 If no problems are found, replace the MCU PWB. If the problem persists, refer to dc131 NVM Read/Write [749-001] (LPH Fail Color) to go to the appropriate RAP. (1: Error has occurred at Y, 2: Error has occurred at M, 4: Error has occurred at C, 8: Error has occurred at K) • Y color: 361.354 RAP • M color: 361.355 RAP • C color: 361.356 RAP • K color: 361.357 RAP

• Code: 345.372
• Description: LPH Mismatch Fault Multi. The model numbers of multiple LPH Units do not match.
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J532-4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532-2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532-2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Check that the values in dc131 NVM Read/Write [749-152 to 160] (LPH Specific Code) do not contain corruption, etc. If no problems are found, replace the following parts in sequence: • MCU PWB • LPH Unit (Y, M, C, K)

• Code: 345.373
• Description: LPH Read Fault Multi. Communication error between MCU and LPH Units (data read error from multiple LPHs).
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J532-4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532-2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532-2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Turn the power Off and check the following connectors for open circuit, short circuit, and poor connection. • Between MCU PWB P/J557 and LPH Rear PWB P/J561 • Between MCU PWB P/J556 and LPH Rear PWB P/J560 • Between MCU PWB P/J555 and LPH Rear PWB P/J559 • Between MCU PWB P/J554 and LPH Rear PWB P/J558 If no problems are found, replace the MCU PWB. If the problem persists, refer to dc131 NVM Read/Write [749-001] (LPH Fail Color) to go to the appropriate RAP. (1: Error has occurred at Y, 2: Error has occurred at M, 4: Error has occurred at C, 8: Error has occurred at K) • Y color: 361.362 RAP • M color: 361.363 RAP • C color: 361.364 RAP • K color: 361.365 RAP

• Code: 345.374
• Description: LPH Write Fault Multi. Communication error between MCU and LPH Units (data write error to multiple LPHs).
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J532-4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532-2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532-2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Turn the power Off and check the following connectors for open circuit, short circuit, and poor connection. • Between MCU PWB P/J557 and LPH Rear PWB P/J561 • Between MCU PWB P/J556 and LPH Rear PWB P/J560 • Between MCU PWB P/J555 and LPH Rear PWB P/J559 • Between MCU PWB P/J554 and LPH Rear PWB P/J558 If no problems are found, replace the MCU PWB. If the problem persists, refer to dc131 NVM Read/Write [749-001] (LPH Fail Color) to go to the appropriate RAP. (1: Error has occurred at Y, 2: Error has occurred at M, 4: Error has occurred at C, 8: Error has occurred at K) • Y color: 361.366 RAP • M color: 361.367 RAP • C color: 361.368 RAP • K color: 361.369 RAP

• Code: 345.375
• Description: LPH Act Fault Multi. Communication error between MCU and multiple LPH Units (error in the communication IC or cable).
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power On. Check the timing at when this Fail occurs. Does this Fail occur right after the power is turned ON? Y↓ N→If the Fail occurs when the Drum is rotating, it is very likely due to the noise caused by high voltage leak. Check the Drum (Y, M, C, K) for improper installation Is the voltage between the MD PWB P/J532-4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532-2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532-2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Turn the power Off and check the following connectors for open circuit, short circuit, and poor connection. • Between MCU PWB P/J557 and LPH Rear PWB P/J561 • Between MCU PWB P/J556 and LPH Rear PWB P/J560 • Between MCU PWB P/J555 and LPH Rear PWB P/J559 • Between MCU PWB P/J554 and LPH Rear PWB P/J558 If no problems are found, replace the MCU PWB. If the problem persists, refer to dc131 NVM Read/Write [749-001] (LPH Fail Color) to go to the appropriate RAP. (1: Error has occurred at Y, 2: Error has occurred at M, 4: Error has occurred at C, 8: Error has occurred at K) • Y color: 361.370 RAP

• Code: 345.376
• Description: LPH PLL Lock Fault Multi. LPH PLL lock mechanism failure (clock failures in multiple LPHs).
• Troubleshooting Guides: Turn the power Off and remove the Rear Upper Cover. Turn the power ON. Is the voltage between the MD PWB P/J532 -4/8/12/16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Is the voltage between the MD PWB P/J532 -2/6/10/14 (+) and the GND (-) +1.8VDC? Y↓ N→Turn the power Off and disconnect the MD PWB connector P/J532. Measure the resistance between the MD PWB P/J532 -2/6/10/14 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the MD PWB. Turn the power Off and check the following connectors for open circuit, short circuit, and poor connection. • Between MCU PWB P/J557 and LPH Rear PWB P/J561 • Between MCU PWB P/J556 and LPH Rear PWB P/J560 • Between MCU PWB P/J555 and LPH Rear PWB P/J559 • Between MCU PWB P/J554 and LPH Rear PWB P/J558 If no problems are found, replace the MCU PWB. If the problem persists, refer to dc131 NVM Read/Write [749-001] (LPH Fail Color) to go to the appropriate RAP. (1: Error has occurred at Y, 2: Error has occurred at M, 4: Error has occurred at C, 8: Error has occurred at K) • Y color: 361.386 RAP • M color: 361.387 RAP • C color: 361.388 RAP • K color: 361.389 RAP

• Code: 347.211
• Description: Exit 1 OCT Home Fault. After the Exit 1 OCT Motor has ran for the specified operation time, the Exit 1 OCT Home Position Sensor does not turn On
• Troubleshooting Guides: Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [077-109]. Move the OCT Chute manually to block/clear the light path to the Exit 1 OCT Home Position Sensor. Does the display change between High/Low? Y↓ N→Use Reflective Sensor RAP to check the Exit 1 OCT Home Position Sensor. Press the Stop button. Turn On dc330 Component Control [077-040] and dc330 Component Control [077-041] alternately. Does the OCT 1 Chute move forward and backward? Y↓ N→Is the voltage between the MD PWB P/J524-3/4 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off and check the Exit 1 OCT Motor Gear for blockage and the OCT Chute for damage. Also, check the connection between the MD PWB P/J524 and the Exit 1 OCT Motor P/J271 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Exit 1 OCT Motor (PL 17.2 Item 4) • MD PWB Press the Stop button and turn the power Off. Replace the MD PWB.

• Code: 347.212
• Description: Exit 2 OCT Home Fault. After the Exit 2 OCT Motor has ran for the specified operation time, the Exit 2 OCT Home Position Sensor does not turn On.
• Troubleshooting Guides: • Check the Exit 2 OCT Home Position Sensor for improper installation, contamination, and etc. • Check the Shielding Board, which blocks the detection section of the Exit 2 OCT Home Position Sensor, for damage and check the OCT 2 Chute for improper installation.
  Turn the power On and enter Service Diagnostics (Entering Service Diagnostics). Turn On dc330 Component Control [077-110]. Move the OCT 2 Chute manually to block/clear the light path to the Exit 2 OCT Home Position Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Exit 2 OCT Home Position Sensor. Press the Stop button. Turn On dc330 Component Control [077-045] and dc330 Component Control [077-046] alternately. Does the OCT 2 Chute move forward and backward? Y↓ N→Is the voltage between the MD PWB P/J522-A3/A4 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off and check the Exit 2 OCT Motor Gear for blockage and the OCT 2 Chute for damage. Also, check the connection between the MD PWB P/J522 and the Exit 2 OCT Motor P/J266 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Exit 2 OCT Motor (PL 17.5 Item 11) • MD PWB Press the Stop button and turn the power Off. Replace the MD PWB.

• Code: 347.213
• Description: Finisher Kind Mismatch. A Finisher other than the specified one is connected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and connect a Finisher that is supported by this machine.

• Code: 347.216
• Description: Finisher Communication Fault. Communication failure between the Finisher and the IOT was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the connection between the MD PWB P/J590/ and the Finisher PWB P/J591 for open circuit, short circuit, and poor contact. Also, check the power supply at the Finisher. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 347.320
• Description: ALL Destination Tray Broken. All Trays connected to the IOT have become unusable.
• Troubleshooting Guides: Enter dc122 Fault History. Go to the RAP of the affected Output Tray.

• Code: 361.350
• Description: LPH Power On Fault Y. Power source system error during LPH batch download complete verification or poor connection of Flat Cable.
• Troubleshooting Guides: Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (Y) P/J553 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (Y) P/J565 and the LPH (Y) P/J573 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 for open circuits, short circuits, and poor contacts (especially for short circuits between MCU PWB P/J557 pins-28/27 and LPH Rear PWB (Y) P/J561 pins-1/2) • The Flat Cable between the LPH H PWB (Y) P/J569 and the LPH (Y) P/J577 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MD PWB • MCU PWB

• Code: 361.351
• Description: LPH Power On Fault M. Power source system error during LPH batch download complete verification or poor connection of Flat Cable.
• Troubleshooting Guides: Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (M) P/J552 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (M) P/J564 and the LPH (M) P/J572 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 for open circuits, short circuits, and poor contacts (especially for short circuits between MCU PWB P/J556 pins-28/27 and LPH Rear PWB (M) P/J560 pins-1/2) • The Flat Cable between the LPH H PWB (M) P/J568 and the LPH (M) P/J576 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MD PWB • MCU PWB

• Code: 361.352
• Description: LPH Power On Fault C. Power source system error during LPH batch download complete verification or poor connection of Flat Cable.
• Troubleshooting Guides: Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (C) P/J551 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (C) P/J563 and the LPH (C) P/J571 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 for open circuits, short circuits, and poor contacts (especially for short circuits between MCU PWB P/J555 pins-28/27 and LPH Rear PWB (C) P/J559 pins-1/2) • The Flat Cable between the LPH H PWB (C) P/J567 and the LPH (C) P/J575 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MD PWB • MCU PWB

• Code: 361.353
• Description: LPH Power On Fault K. Power source system error during LPH batch download complete verification or poor connection of Flat Cable.
• Troubleshooting Guides: Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (K) P/J550 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (K) P/J562 and the LPH (K) P/J570 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 for open circuits, short circuits, and poor contacts (especially for short circuits between MCU PWB P/J554 pins-28/27 and LPH Rear PWB (K) P/J558 pins-1/2) • The Flat Cable between the LPH H PWB (K) P/J566 and the LPH (K) P/J574 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MD PWB • MCU PWB

• Code: 361.354
• Description: LPH Download Data Fault Y. DELSOL register data error during the LPH batch download complete verification, download error, or connector error.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (Y) P/J569 and the LPH (Y) P/J577 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB

• Code: 361.355
• Description: LPH Download Data Fault M. DELSOL register data error during the LPH batch download complete verification, download error, or connector error.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (M) P/J568 and the LPH (M) P/J576 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB

• Code: 361.356
• Description: LPH Download Data Fault C. DELSOL register data error during the LPH batch download complete verification, download error, or connector error.
• Troubleshooting Guides: • The Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (C) P/J567 and the LPH (C) P/J575 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation If no problems are found, replace the following parts in sequence: • Use Software Versions (dc108 Software Versions) to verify the most current software is installed. – If a software upgrade is necessary go to GP 21. • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB

• Code: 361.357
• Description: LPH Download Data Fault K. DELSOL register data error during the LPH batch download complete verification, download error, or connector error.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (K) P/J566 and the LPH (K) P/J574 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation If no problems are found, replace the following parts in sequence: • Use Software Versions (dc108 Software Versions) to verify the most current software is installed. – If a software upgrade is necessary go to GP 21. • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB

• Code: 361.358
• Description: LPH Mismatch Fault Y. The model number of the LPH Unit (Y) does not match.
• Troubleshooting Guides: Check the following: • Check that the values in dc131 NVM Read/Write [749-157] (LPH Specific Code 4Y) do not contain corruption, etc. • Use Software Versions (dc108 Software Versions) to verify the most current software is installed. – If a software upgrade is necessary go to GP 21. If no problems are found, replace the LPH Unit (Y).

• Code: 361.359
• Description: LPH Mismatch Fault M. The model number of the LPH Unit (M) does not match.
• Troubleshooting Guides: Check the following: • Check that the values in dc108 Software Versions [749-158] (LPH Specific Code 4M) do not contain corruption, etc. • Use Software Versions (dc108 Software Versions) to verify the most current software is installed. – If a software upgrade is necessary go to GP 21. If no problems are found, replace the LPH Unit (M).

• Code: 361.360
• Description: LPH Mismatch Fault C. The model number of the LPH Unit (C) does not match.
• Troubleshooting Guides: Check the following: • Check that the values in dc131 NVM Read/Write [749-159] (LPH Specific Code 4C) do not contain corruption, etc. • Use Software Versions (dc108 Software Versions) to verify the most current software is installed. – If a software upgrade is necessary go to GP 21. If no problems are found, replace the LPH Unit (C).

• Code: 361.361
• Description: LPH Mismatch Fault K. The model number of the LPH Unit (K) does not match.
• Troubleshooting Guides: Check the following: • Check that the values in dc131 NVM Read/Write [749-160] (LPH Specific Code 4K) do not contain corruption, etc. • Use Software Versions (dc108 Software Versions) to verify the most current software is installed. – If a software upgrade is necessary go to GP 21. If no problems are found, replace the LPH Unit (K).

• Code: 361.362
• Description: LPH Read Fault Y. Communication error between MCU and LPH Unit (Y) (data read error from LPH)
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (Y) P/J569 and the LPH (Y) P/J577 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB

• Code: 361.363
• Description: LPH Read Fault M. Communication error between MCU and LPH Unit (M) (data read error from LPH)
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (M) P/J568 and the LPH (M) P/J576 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB

• Code: 361.364
• Description: LPH Read Fault C. Communication error between MCU and LPH Unit (C) (data read error from LPH)
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (C) P/J567 and the LPH (C) P/J575 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB

• Code: 361.365
• Description: LPH Read Fault K. Communication error between MCU and LPH Unit (K) (data read error from LPH)
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (K) P/J566 and the LPH (K) P/J574 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB

• Code: 361.366
• Description: LPH Write Fault Y. Communication error between MCU and LPH Unit (Y) (data write error to LPH).
• Troubleshooting Guides: Procedure Refer to dc131 NVM Read/Write [749-046] (Write Retry Data Y). Is the value of dc131 NVM Read/Write [749-046] (Write Retry Data Y) ‘0’? Y↓ N→Check the following: • The Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (Y) P/J569 and the LPH (Y) P/J577 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) • The NVM value for corruption If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (Y) P/J553 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (Y) P/J565 and the LPH (Y) P/J573 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MD PWB • MCU PWB

• Code: 361.367
• Description: LPH Write Fault M. Communication error between MCU and LPH Unit (M) (data write error to LPH).
• Troubleshooting Guides: Refer to dc131 NVM Read/Write [749-047] (Write Retry Data M). Is the value of dc131 NVM Read/Write [749-047] (Write Retry Data M) ‘0’? Y↓ N→Check the following: • The Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (M) P/J568 and the LPH (M) P/J576 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) • The NVM value for corruption If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (M) P/J552 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (M) P/J564 and the LPH (M) P/J572 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MD PWB • MCU PWB

• Code: 361.368
• Description: LPH Write Fault C. Communication error between MCU and LPH Unit (C) (data write error to LPH).
• Troubleshooting Guides: Refer to dc131 NVM Read/Write [749-048] (Write Retry Data C). Is the value of dc131 NVM Read/Write [749-048] (Write Retry Data C) ‘0’? Y↓ N→Check the following: • The Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (C) P/J567 and the LPH (C) P/J575 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) • The NVM value for corruption If no problems are found, replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (C) P/J551 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (C) P/J563 and the LPH (C) P/J571 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MD PWB • MCU PWB

• Code: 361.369
• Description: LPH Write Fault K. Communication error between MCU and LPH Unit (K) (data write error to LPH).
• Troubleshooting Guides: Refer to dc131 NVM Read/Write [749-049] (Write Retry Data K). Is the value of dc131 NVM Read/Write [749-049] (Write Retry Data K) ‘0’? Y↓ N→Check the following: • The Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (K) P/J566 and the LPH (K) P/J574 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) • The NVM value for corruption If no problems are found, replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB Check the following: • The connection between the MD PWB P/J532 and the LPH Rear PWB (K) P/J550 for open circuit, short circuit, and poor contact • The connection between the LPH H PWB (K) P/J562 and the LPH (K) P/J570 for open circuit, short circuit, and poor contact (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MD PWB • MCU PWB

• Code: 361.370
• Description: LPH Act Fault Y. Communication error between MCU and LPH Unit (Y) (error in the communication IC or cable).
• Troubleshooting Guides: Check the timing at when this Fail occurs. Does this Fail occur right after the power is turned On? Y↓ N→If the Fail occurs when the Drum is rotating, it is very likely due to the noise caused by high voltage leakCheck the Drum (Y, M, C, K) for improper installation Check the following: • The Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (Y) P/J569 and the LPH (Y) P/J577 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB

• Code: 361.371
• Description: LPH Act Fault M. Communication error between MCU and LPH Unit (M) (error in the communication IC or cable).
• Troubleshooting Guides: Check the timing at when this Fail occurs. Does this Fail occur right after the power is turned On? Y↓ N→If the Fail occurs when the Drum is rotating, it is very likely due to the noise caused by high voltage leak. Check the Drum (Y, M, C, K) for improper installation Check the following: • The Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (M) P/J568 and the LPH (M) P/J576 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB

• Code: 361.372
• Description: LPH Act Fault C. Communication error between MCU and LPH Unit (C) (error in the communication IC or cable).
• Troubleshooting Guides: Check the timing at when this Fail occurs. Does this Fail occur right after the power is turned On? Y↓ N→If the Fail occurs when the Drum is rotating, it is very likely due to the noise caused by high voltage leak. Check the Drum (Y, M, C, K) for improper installation Check the following: • The Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (C) P/J567 and the LPH (C) P/J575 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB

• Code: 361.373
• Description: LPH Act Fault K. Communication error between MCU and LPH Unit (K) (error in the communication IC or cable).
• Troubleshooting Guides: Check the timing at when this Fail occurs. Does this Fail occur right after the power is turned On? Y↓ N→If the Fail occurs when the Drum is rotating, it is very likely due to the noise caused by high voltage leak. Check the Drum (Y, M, C, K) for improper installation Check the following: • The Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (K) P/J566 and the LPH (K) P/J574 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation • The Drum/Dev Drive Motor (Y, M, C) for improper installation (affected by the noises caused by improper installation) If no problems are found, replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB

• Code: 361.374
• Description: LPH Chip Fault Y. Open circuit detected in LPH Unit (Y) (open circuit between DELSOL and SLED).
• Troubleshooting Guides: Enter dc122 Fault History. Check whether any Fail related to connection failure of the Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 has occurred. Has any Chain No. 361 Fail (other than LPH Chip Fail) occurred? Y↓ N→Replace the LPH Unit (Y). Go to the appropriate RAP

• Code: 361.375
• Description: LPH Chip Fault M. Open circuit detected in LPH Unit (M) (open circuit between DELSOL and SLED).
• Troubleshooting Guides: Enter dc122 Fault History. Check whether any Fail related to connection failure of the Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 has occurred. Has any Chain No. 361 Fail (other than LPH Chip Fail) occurred? Y↓ N→Replace the LPH Unit (M). Go to the appropriate RAP

• Code: 361.376
• Description: LPH Chip Fault C. Open circuit detected in LPH Unit (C) (open circuit between DELSOL and SLED).
• Troubleshooting Guides: Enter dc122 Fault History. Check whether any Fail related to connection failure of the Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 has occurred. Has any Chain No. 361 Fail (other than LPH Chip Fail) occurred? Y↓ N→Replace the LPH Unit (C). Go to the appropriate RAP.

• Code: 361.377
• Description: LPH Chip Fault K. Open circuit detected in LPH Unit (K) (open circuit between DELSOL and SLED).
• Troubleshooting Guides: Enter dc122 Fault Historyy. Check whether any Fail related to connection failure of the Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 has occurred. Has any Chain No. 361 Fail (other than LPH Chip Fail) occurred? Y↓ N→Replace the LPH Unit (K). Go to the appropriate RAP.

• Code: 361.378
• Description: LPH Ltrg Fault Y. The Ltrg signal (image synchronization signal) failure was detected.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J557 and the LPH Rear PWB (Y) P/J561 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (Y) P/J569 and the LPH (Y) P/J577 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J581 between the LPH Rear PWB (Y) and the LPH H PWB (Y) for damage and foreign substances • The LPH Unit (Y) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB

• Code: 361.379
• Description: LPH Ltrg Fault M. The Ltrg signal (image synchronization signal) failure was detected.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J556 and the LPH Rear PWB (M) P/J560 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (M) P/J568 and the LPH (M) P/J576 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J580 between the LPH Rear PWB (M) and the LPH H PWB (M) for damage and foreign substances • The LPH Unit (M) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB

• Code: 361.384
• Description: LPH Ltrg Fault C. The Ltrg signal (image synchronization signal) failure was detected.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J555 and the LPH Rear PWB (C) P/J559 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (C) P/J567 and the LPH (C) P/J575 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J579 between the LPH Rear PWB (C) and the LPH H PWB (C) for damage and foreign substances • The LPH Unit (C) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB

• Code: 361.385
• Description: LPH Ltrg Fault K. The Ltrg signal (image synchronization signal) failure was detected.
• Troubleshooting Guides: Check the following: • The Flat Cable between the MCU PWB P/J554 and the LPH Rear PWB (K) P/J558 for open circuits, short circuits, and poor contacts • The Flat Cable between the LPH H PWB (K) P/J566 and the LPH (K) P/J574 for open circuits, short circuits, and poor contacts (connection within the LPH Unit) • The connector P/J578 between the LPH Rear PWB (K) and the LPH H PWB (K) for damage and foreign substances • The LPH Unit (K) for improper installation If no problems are found, replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB

• Code: 361.386
• Description: LPH PLL Lock Fault Y. LPH PLL lock mechanism failure (LPH clock failure).
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.354 LPH Download Fail Y has occurred. Has Fail 361.354 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB Proceed to RAP 361.354.

• Code: 361.387
• Description: LPH PLL Lock Fault M. LPH PLL lock mechanism failure (LPH clock failure).
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.355 LPH Download Fail M has occurred. Has Fail 361.355 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB Proceed to RAP 361.355.

• Code: 361.388
• Description: LPH PLL Lock Fault C. LPH PLL lock mechanism failure (LPH clock failure). NOTE: When turning the power Off, turn Off the Power
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.356 LPH Download Fail C has occurred. Has Fail 361.356 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB Proceed to RAP 361.356.

• Code: 361.389
• Description: LPH PLL Lock Fault K. LPH PLL lock mechanism failure (LPH clock failure).
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.357 LPH Download Fail K has occurred. Has Fail 361.357 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB Proceed to RAP 361.357.

• Code: 361.390
• Description: LPH FFC Connect Posi Fault Y. The image data (Y) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.374 LPH Chip Fail Y has occurred. Has Fail 361.374 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB Proceed to RAP 361.374.

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• Code: 361.391
• Description: LPH FFC Connect Posi Fault M. The image data (M) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.375 LPH Chip Fail M has occurred. Has Fail 361.375 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB Proceed to RAP 361.375.

• Code: 361.392
• Description: LPH FFC Connect Posi Fault C. The image data (C) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.376 LPH Chip Fail C has occurred. Has Fail 361.376 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB Proceed to RAP 361.376.

• Code: 361.393
• Description: LPH FFC Connect Posi Fault K. The image data (K) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.377 LPH Chip Fail K has occurred. Has Fail 361.377 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB Proceed to RAP 361.377.

• Code: 361.394
• Description: LPH FFC Connect Nega Fault Y. The image data (Y) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.374 LPH Chip Fail Y has occurred. Has Fail 361.374 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (Y) • LPH Cable Assembly • LPH Rear PWB (Y) • MCU PWB Proceed to RAP 361.374.

• Code: 361.395
• Description: LPH FFC Connect Nega Fault M. The image data (M) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.375 LPH Chip Fail M has occurred. Has Fail 361.375 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (M) • LPH Cable Assembly • LPH Rear PWB (M) • MCU PWB (7545/56) Proceed to RAP 361.375.

• Code: 361.396
• Description: LPH FFC Connect Nega Fault C. The image data (C) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.376 LPH Chip Fail C has occurred. Has Fail 361.376 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (C) • LPH Cable Assembly • LPH Rear PWB (C) • MCU PWB Proceed to RAP 361.376.

• Code: 361.397
• Description: LPH FFC Connect Nega Fault K. The image data (K) cannot be received normally from the MCU.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether 361.377 LPH Chip Fail K has occurred. Has Fail 361.377 occurred? Y↓ N→Replace the following parts in sequence: • LPH Unit (K) • LPH Cable Assembly • LPH Rear PWB (K) • MCU PWB Proceed to RAP 361.377.

• Code: 361.398
• Description: BITZ1 Initialize Fault The Bitz1 initialization error was detected. This is an error where the CPU is unable to access the memory and the register of the ASIC BITZ (image processing chip for Y and M) that is installed on the MCU PWB.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether an LPH-related Fail has occurred. Has any Chain No. 361 Fail occurred? Y↓ N→Replace the following parts in sequence: • LPH Cable Assembly • MCU PWB Go to the appropriate RAP.

• Code: 361.399
• Description: BITZ2 Initialize Fault The Bitz2 initialization error was detected. This is an error where the CPU is unable to access the memory and the register of the ASIC BITZ (image processing chip for C and K) that is installed on the MCU PWB.
• Troubleshooting Guides: Enter dc122 Fault History. Check whether an LPH-related Fail has occurred. Has any Chain No. 361 Fail occurred? Y↓ N→Replace the following parts in sequence: • LPH Cable Assembly • MCU PWB Go to the appropriate RAP.

• Code: 361.610
• Description: Bitz1 CONTIF Fault. An irregularity was detected in the Valid signal for Y or M color. The Valid signal, which is sent from the Controller to indicate the valid range of the fast scan, does not turn On at the given timing or turns On at an unscheduled timing. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check whether there is poor connection or foreign substances at the following connectors. • Between BP PWB and MCU PWB P/J451 • Between BP PWB J335 and I/P PWB P335 • Between BP PWB J309 and I/P PWB P309 If no problems are found, replace the following parts in sequence: • BP PWB • MCU PWB

• Code: 361.611
• Description: Bitz2 CONTIF Fault An irregularity was detected in the Valid signal for C or K color. The Valid signal, which is sent from the Controller to indicate the valid range of the fast scan, does not turn On at the given timing or turns On at an unscheduled timing. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check whether there is poor connection or foreign substances at the following connectors. • Between BP PWB and MCU PWB P/J451 • Between BP PWB J335 and I/P PWB P335 • Between BP PWB J309 and I/P PWB P309 If no problems are found, replace the following parts in sequence: • BP PWB • MCU PWB

• Code: 371.105
• Description: Reg Sensor On Jam (Tray2/3/4/5). The Reg Sensor does not turn On within the specified time after the Reg Clutch On after the Feed from the Tray has started.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Tray 2 Feed Roll, Retard Roll, and Nudger Roll for contamination, wear, and revolution failure (when the jam has occurred during Feed from Tray 2) • Each Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • Each Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (refer to Media and Tray Specifications). • The Reg Sensor for contamination, improper installation, and Actuator operation failure • The Reg Sensor for failure: dc330 Component Control [077-103] (PL 15.2) • The connection between the Reg Sensor P/J160 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The Main Drive Motor for revolution failure: dc330 Component Control [042-002] (PL 3.2) • The Tray 2 Feed/Lift Up Motor for revolution failure: dc330 Component Control [071-001] (PL 9.4) (when the jam has occurred during Feed from Tray 5) • The Takeaway Motor for revolution failure: dc330 Component Control [077-050] (PL 15.1) • The TM Takeaway Motor for revolution failure: dc330 Component Control [077-035] (PL 10.9) • The TM Takeaway Motor 2 for revolution failure): dc330 Component Control [077-037] (PL 10.9) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 371.210
• Description: Tray 2 Lift Up Fault. Tray 2 Lift Up NG has occurred 3 times in a row.
• Troubleshooting Guides: Remove Tray 2. Turn the power On and enter the Diag mode. Turn On dc330 Component Control [071-001] (Tray 2 Feed/Lift Up Motor). Does the Tray 1 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the MD PWB P/J520-9 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 5 Feed/Lift Up Motor wire wound resistance. Remove the Rear Upper Cover, then measure the following resistances. • Between the MD PWB P/J528-B1 and the P/J528-B2 • Between the MD PWB P/J528-B3 and the P/J528-B4 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the MD PWB P/J528 and the Tray 2 Feed/Lift Up Motor P/J268 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 2 Feed/Lift Up Motor (PL 9.4). Measure the resistance between the MD PWB P/J528-B1/B2/B3/B4 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • MD PWB • MCU PWB Press the Stop button. Turn On dc330 Component Control [071-102] (Tray 2 Nudger Level Sensor). Use a sheet of paper, etc. to block/clear the light path to the Tray 2 Nudger Level Sensor. Does the display change between High/Low? Y↓ N→Use Permeable Sensor Failure RAP to check the Tray 1 Nudger Level Sensor. Press the Stop button and turn the power Off. Check the Tray Lift Up Gear for damage or the Tray Lift Up mechanism for mechanical load. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 371.212
• Description: Tray 2 Paper Size Sensor Broken. Abnormal Analog voltage to Digital value from Tray 2 Size Sensor was detected.
• Troubleshooting Guides: Check the following: • Broken link and breakage at the bottom of the tray • The Actuator at the rear of the Tray for operation failure • The Tray 2 Paper Size Sensor for failure: dc140 Analog Monitor [071-200], dc330 Component Control [071-104] (PL 9.1) • The connection between the Tray 2 Paper Size Sensor P/J174 and the MCU PWB P/ J417 for open circuit, short circuit, and poor contact If no problems are found, replace the MCU PWB.

• Code: 371.940
• Description: Tray 5 Lift Up NG. After the Tray 5 Lift Up has started, the Tray 5 Nudger Level Sensor did not turn On within the specified time.
• Troubleshooting Guides: 1. Pull out and reinsert Tray 5 and check for improper loading of paper. 2. Enter dc122 Fault History. If this failure occurs frequently, go to RAP 371.210.

• Code: 372.101
• Description: Tray 3 Miss Feed. The Tray 3 Feed Out Sensor does not turn On within the specified time after the Feed from Tray 2 has started.
• Troubleshooting Guides: Remove the Rear Upper Cover and the Rear Cover. Check the connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact.
  Turn the power On and enter the Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [072-001] (Tray 3 Feed/Lift Up Motor). Does the Tray 3 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 3 Feed/Lift Up Motor wire wound resistance. Check the resistance of the following. • Between the Tray Module PWB P/J550-1 and P/J550-2 • Between the Tray Module PWB P/J550-3 and P/J550-4 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the Tray Module PWB P/J550 and the Tray 3 Feed/ Lift Up Motor P/J221 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 3 Feed/Lift Up Motor (PL 10.3 Item 3). Measure the resistance between the Tray Module PWB P/J550-1/2/3/4 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB Press the Stop button. Turn On dc330 Component Control [077-035] (TM Takeaway Motor). Does the TM Takeaway Motor rotate? Y↓ N→Is the voltage between the TM Takeaway Motor P/J224-2/5 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, disconnect the TM Takeaway Motor connector P/J224. Measure the TM Takeaway Motor wire wound resistance. • Between the TM Takeaway Motor P/J224-2 and P/J224-1 • Between the TM Takeaway Motor P/J224-2 and P/J224-3 • Between the TM Takeaway Motor P/J224-5 and P/J224-4 • Between the TM Takeaway Motor P/J224-5 and P/J224-6 Is the resistance approx. 0.85 Ohm for each? (At 25° C / 77° F) Y↓ N→Replace the TM Takeaway Motor. Measure the resistance between the disconnected TM Takeaway Motor connectors P/ J224-1/3/4/6 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Check the connection between the Tray Module PWB P/J551 and the TM Takeaway Motor P/J224 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB Press the Stop button and open the L/H Cover. Turn On DC330 [072-103] (Tray 3 Feed Out Sensor). Move the Actuator manually to block/clear the light path to the Tray 3 Feed Out Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 3 Feed Out Sensor. Press the Stop button and turn the power Off. Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Feed Roll, Retard Roll, and Nudger Roll for contamination, wear, and revolution failure • The TM Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Feed Roll, Retard Roll, and Nudger Roll Drive Gears for wear and damage • The TM Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (refer to the Media and Tray Specifications) If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 372.102
• Description: Feed Out Sensor 3 On Jam (Tray 3/4).
• Troubleshooting Guides: The Tray 3/4 Feed Out Sensor does not turn On within the specified time after the Feed from Tray 3 or Tray 4 has started.
  Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The TM Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The TM Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (Refer to the spec in Chapter 6 General) • The Tray 3/4 Feed Out Sensor for contamination, improper installation, and Actuator operation failure • The Tray 3/4 Feed Out Sensor for failure: dc330 Component Control [072-103] (PL 10.12) • The connection between the Tray 3 Feed Out Sensor P/J108 and the Tray Module PWB P/549 for open circuit, short circuit, and poor contact • The TM Takeaway Motor for revolution failure: dc330 Component Control [077-035] (PL 10.9) • The connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 372.210
• Description: Tray 3 Lift Up Fault. Tray 3 Lift Up NG has occurred 3 times in a row.
• Troubleshooting Guides: Remove Tray 3. Turn the power On and enter the Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [072-001] (Tray 3 Feed/Lift Up Motor). Does the Tray 3 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 3 Feed/Lift Up Motor wire wound resistance. Remove the Rear Upper Cover, then measure the following resistances. • Between the Tray Module PWB P/J550-1 and P/J550-2 • Between the Tray Module PWB P/J550-3 and P/J550-4 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the Tray Module PWB P/J550 and the Tray 3 Feed/ Lift Up Motor P/J221 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 3 Feed/Lift Up Motor (PL 10.3). Measure the resistance between the Tray Module PWB P/J550-1/2/3/4 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [072-102] (Tray 3 Nudger Level Sensor). Use a sheet of paper, etc. to block/clear the light path to the Tray 3 Nudger Level Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 3 Nudger Level Sensor. Press the Stop button and turn the power Off. Check the Tray Lift Up Gear for damage or the Tray Lift Up mechanism for mechanical load. If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 372.212
• Description: Tray 3 Paper Size Sensor Broken. Abnormal Analog voltage to Digital value from Tray 3 Size Sensor was detected.
• Troubleshooting Guides: Check the following: • Broken link and breakage at the bottom of the tray • The Actuator at the rear of the Tray for operation failure • The Tray 3 Paper Size Sensor for failure: dc140 Analog Monitor [072-200], dc330 Component Control [072-104] (PL 10.1 Item 8) • Check the connection between the Tray 3 Paper Size Sensor P/J101 and the Tray Module PWB P/549 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 372.900
• Description: Tray 3 Feed Out Sensor Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Tray 3 Feed Out Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Tray 3 Feed Out Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Tray 3 Feed Out Sensor for failure: dc330 Component Control [072-103] (PL 10.12) • The connection between the Tray 3 Feed Out Sensor P/J108-1 and the Tray Module PWB P/549-A3 for short circuit • The connection between the MD PWB P592-A6 and the Tray Module PWB P/J541-6 for short circuit If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 372.940
• Description: Tray 3 Lift Up NG. After the Tray 3 Lift Up has started, the Tray 3 Nudger Level Sensor did not turn On within the specified time.
• Troubleshooting Guides: 1. Pull out and reinsert Tray 3 and check for improper loading of paper. 2. Enter dc122 Fault History. If this failure occurs frequently, go to RAP 372.210 .

• Code: 373.101
• Description: Tray 4 Miss Feed. The Tray 4 Feed Out Sensor does not turn On within the specified time after the Feed from Tray 3 has started.
• Troubleshooting Guides: Remove the Rear Upper Cover and the Rear Cover. Check the connection between the MD PWB J592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact.
  Turn the power On and enter the Diag mode. Turn On dc330 Component Control [073-001] (Tray 4 Feed/Lift Up Motor). Does the Tray 4 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 4 Feed/Lift Up Motor wire wound resistance. Check the resistance of the following. • Between the Tray Module PWB P/J550-5 and P/J550-6 • Between the Tray Module PWB P/J550-7 and P/J550-8 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the Tray Module PWB P/J550 and the Tray 4 Feed/ Lift Up Motor P/J222 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 4 Feed/Lift Up Motor (PL 10.3 Item 3). Measure the resistance between the Tray Module PWB P/J550-5/6/7/8 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [077-037] (TM Takeaway Motor 2). Does the TM Takeaway Motor 2 rotate? Y↓ N→Is the voltage between the TM Takeaway Motor 2 P/J226-2/5 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, disconnect the TM Takeaway Motor 2 connector P/J226. Measure the TM Takeaway Motor 2 wire wound resistance. • Between the TM Takeaway Motor 2 P/J226-2 and P/J226-1 • Between the TM Takeaway Motor 2 P/J226-2 and P/J226-3 • Between the TM Takeaway Motor 2 P/J226-5 and P/J226-4 • Between the TM Takeaway Motor 2 P/J226-5 and P/J226-6 Is the resistance approx. 0.85 Ohm for each? (At 25° C / 77° F) Y↓ N→Replace the TM Takeaway Motor 2 (PL 10.9). Measure the resistance between the disconnected TM Takeaway Motor 2 connectors P/ J226-1/3/4/6 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Check the connection between the Tray Module PWB P/J552 and the TM Takeaway Motor 2 P/J226 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB Press the Stop button and open the L/H Cover. Turn On DC330 [073-103] (Tray 4 Feed Out Sensor). Move the Actuator manually to block/clear the light path to the Tray 3 Feed Out Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 4 Feed Out Sensor. Press the Stop button and turn the power Off. Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Feed Roll, Retard Roll, and Nudger Roll for contamination, wear, and revolution failure • The TM Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Feed Roll, Retard Roll, and Nudger Roll Drive Gears for wear and damage • The TM Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (refer to theMedia and Tray Specifications) If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 373.102
• Description: Feed Out Sensor 3 On Jam (Tray 4). The Tray 4 Feed Out Sensor does not turn On within the specified time after the Feed from Tray 4 has started.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The TM Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The TM Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (refer to Media and Tray Specifications). • The Tray 4 Feed Out Sensor for contamination, improper installation, and Actuator operation failure • The Tray 4 Feed Out Sensor for failure: dc330 Component Control [073-103] (PL 10.12) • The connection between the Tray 4 Feed Out Sensor P/J112 and the Tray Module PWB P/J548 for open circuit, short circuit, and poor contact • The TM Takeaway Motor 2 for revolution failure: dc330 Component Control [077-037] (PL 10.9) • The connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 373.210
• Description: Tray 4 Lift Up Fault. Tray 4 Lift Up NG has occurred 3 times in a row.
• Troubleshooting Guides: Remove Tray 4. Turn the power On and enter the Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [073-001] (Tray 4 Feed/Lift Up Motor). Does the Tray 3 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 4 Feed/Lift Up Motor wire wound resistance. Remove the Rear Upper Cover, then measure the following resistances. • Between the Tray Module PWB P/J550-5 and P/J550-6 • Between the Tray Module PWB P/J550-7 and P/J550-8 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the Tray Module PWB P/J550 and the Tray 4 Feed/ Lift Up Motor P/J222 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 4 Feed/Lift Up Motor (PL 10.3 Item 3). Measure the resistance between the Tray Module PWB P/J550-5/6/7/8 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [073-102] (Tray 4 Nudger Level Sensor). Use a sheet of paper, etc. to block/clear the light path to the Tray 4 Nudger Level Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 4 Nudger Level Sensor. Press the Stop button and turn the power Off. Check the Tray Lift Up Gear for damage or the Tray Lift Up mechanism for mechanical load. If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 373.212
• Description: Tray 4 Paper Size Sensor Broken. Abnormal Analog voltage to Digital value from Tray 4 Size Sensor was detected.
• Troubleshooting Guides: Check the following: • Broken link and breakage at the bottom of the tray • The Actuator at the rear of the Tray for operation failure • The Tray 4 Paper Size Sensor for failure: dc330 Component Control [073-104] (PL 10.1) • The connection between the Tray 4 Paper Size Sensor P/J102 and the Tray Module PWB P/549 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 373.900
• Description: Tray 4 Feed Out Sensor Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Tray 4 Feed Out Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Tray 4 Feed Out Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Tray 4 Feed Out Sensor for failure: dc330 Component Control [073-103] (PL 10.12) • The connection between the Tray 4 Feed Out Sensor P/J112-2 and the Tray Module PWB P/J548-11 for short circuit • The connection between the MD PWB J592-A7 and the Tray Module PWB P/J541-7 for short circuit If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 373.940
• Description: Tray 4 Lift Up NG. After the Tray 4 Lift Up has started, the Tray 4 Nudger Level Sensor did not turn On within the specified time.
• Troubleshooting Guides: 1. Pull out and reinsert Tray 4 and check for improper loading of paper. 2. Enter dc122 Fault History. If this failure occurs frequently, go to RAP 372.210 .

• Code: 374.101
• Description: Tray 5 Miss Feed. The Tray 5 Feed Out Sensor does not turn On within the specified time after the Feed from Tray 4 has started
• Troubleshooting Guides: Remove the Rear Upper Cover and the Rear Cover. Check the connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact.
  Turn the power On and enter Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [074-001] (Tray 5 Feed/Lift Up Motor). Does the Tray 5 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 5 Feed/Lift Up Motor wire wound resistance. Check the resistance of the following. • Between the Tray Module PWB P/J550-9 and P/J550-10 • Between the Tray Module PWB P/J550-11 and P/J550-12 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the Tray Module PWB P/J550 and the Tray 5 Feed/ Lift Up Motor P/J223 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 5 Feed/Lift Up Motor (PL 10.3). Measure the resistance between the Tray Module PWB P/J550-9/10/11/12 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [077-037] (TM Takeaway Motor 2). Does the TM Takeaway Motor 2 rotate? Y↓ N→Is the voltage between the TM Takeaway Motor 2 P/J226-2/5 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, disconnect the TM Takeaway Motor 2 connector P/J226. Measure the TM Takeaway Motor 2 wire wound resistance. • Between the TM Takeaway Motor 2 P/J226-2 and P/J226-1 • Between the TM Takeaway Motor 2 P/J226-2 and P/J226-3 • Between the TM Takeaway Motor 2 P/J226-5 and P/J226-4 • Between the TM Takeaway Motor 2 P/J226-5 and P/J226-6 Is the resistance approx. 0.85 Ohm for each? (At 25° C / 77° F) Y↓ N→Replace the TM Takeaway Motor 2 (PL 10.9). Measure the resistance between the disconnected TM Takeaway Motor 2 connectors P/ J226-1/3/4/6 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Check the connection between the Tray Module PWB P/J552 and the TM Takeaway Motor 2 P/J226 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB Press the Stop button and open the L/H Cover. Turn On DC330 [074-103] (Tray 5 Feed Out Sensor). Move the Actuator manually to block/clear the light path to the Tray 5 Feed Out Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 5 Feed Out Sensor. Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Feed Roll, Retard Roll, and Nudger Roll for contamination, wear, and revolution failure • The TM Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Feed Roll, Retard Roll, and Nudger Roll Drive Gears for wear and damage • The TM Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (refer to theMedia and Tray Specifications) If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 374.210
• Description: Tray 5 (3TM) Lift Up Fault. Tray 5 Lift Up NG has occurred 3 times in a row.
• Troubleshooting Guides: Remove Tray 5. Turn the power On and enter the Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [074-001] (Tray 5 Feed/Lift Up Motor). Does the Tray 5 Feed/Lift Up Motor rotate? Y↓ N→Is the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 5 Feed/Lift Up Motor wire wound resistance. Check the resistance of the following. • Between the Tray Module PWB P/J550-9 and P/J550-10 • Between the Tray Module PWB P/J550-11 and P/J550-12 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the Tray Module PWB P/J550 and the Tray 5 Feed/ Lift Up Motor P/J223 for open circuit, short circuit, and poor contact. If there are no problems, replace the Tray 5 Feed/Lift Up Motor (PL 10.3). Measure the resistance between the Tray Module PWB P/J550-9/10/11/12 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [074-102] (Tray 5 Nudger Level Sensor). Use a sheet of paper, etc. to block/clear the light path to the Tray 5 Nudger Level Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 5 Nudger Level Sensor. Press the Stop button and turn the power Off. Check the Tray Lift Up Gear for damage or the Tray Lift Up mechanism for mechanical load. If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 374.212
• Description: Tray 5 Paper Size Sensor Broken. Abnormal output AD value from Tray 5 Size Sensor was detected.
• Troubleshooting Guides: Check the following: • Broken link and breakage at the bottom of the tray • The Actuator at the rear of the Tray for operation failure • The Tray 5 Paper Size Sensor for failure: dc140 Analog Monitor [072-200], dc330 Component Control [072-104] (PL 10.1) • The connection between the Tray 5 Paper Size Sensor P/J103 and the Tray Module PWB P/J549 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 374.900
• Description: Tray 5 Feed Out Sensor Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Tray 5 Feed Out Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Tray 5 Feed Out Sensor (PL 11.5 Item 6) for remaining paper, contamination, Actuator return failure, or improper installation • The Tray 5 Feed Out Sensor for failure: dc330 Component Control [074-103] • The connection between the Tray 5 Feed Out Sensor P/J116-2 and the Tray Module PWB P/J548-2 for short circuit • The connection between the MD PWB J592-B7 and the Tray Module PWB P/J541-8 for short circuit If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 374.940
• Description: Tray 5 Lift Up NG. After the Tray 5 Lift Up has started, the Tray 5 Nudger Level Sensor did not turn On within the specified time.
• Troubleshooting Guides: 1. Pull out and reinsert Tray 5 and check for improper loading of paper. 2. Enter dc122 Fault History. If this failure occurs frequently, go to the 374.210 RAP.

• Code: 375.100
• Description: Tray 1 Miss Feed. The Tray 1 Feed Out Sensor does not turn On within the specified time after the Feed from Tray 5 has started.
• Troubleshooting Guides: Turn the power On and enter the Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [075-001] (Tray 1 Feed/Nudger Motor). Does the Tray 1 Feed/ Nudger Motor rotate? Y↓ N→Is the voltage between the MD PWB P/J520-1 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 1 Feed/Nudger Motor wire wound resistance. Check the resistance of the following. • Between the MD PWB P/J525-B10 and the P/J525-B11 • Between the MD PWB P/J525-B12 and the P/J525-B13 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the MD PWB P/J525 and Tray 1 Feed/Nudger Motor P/J269 for open circuit, short circuit, and poor contact. If no problems are found, replace the Tray 1 Feed/Nudger Motor (PL 13.2). Measure the resistance between the MD PWB P/J525-B10/B11/B12/B13 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [077-104] (Tray 1 Feed Out Sensor). Activate the Actuator by using a sheet of paper, etc. to block/clear the light path to the Tray 1 Feed Out Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 1 Feed Out Sensor. Press the Stop button and turn the power Off. Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Front Chute Floating Snap for disengagement • The Tray 1 Nudger Roll and Retard Spring for deformation and snags • The Tray 1 Feed Roll and Nudger Roll for contamination, wear, and revolution failure • The Tray 1 Feed Roll and Nudger Roll Drive Gears for wear and damage • Use of paper out of spec (refer to the Media and Tray Specifications). If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 375.103
• Description: Tray 1 Feed Out Sensor Off Jam. The Tray 1 Feed Out Sensor does not turn Off within the specified time after the Reg Clutch On.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to foreign substances/burrs on the paper path and deformed paper guides • The Tray 1 Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Reg Roll and Pinch Roll for contamination, wear, and revolution failure • The 2nd BTR for contamination, wear, and revolution failure • The Tray 1 Takeaway Roll Drive Gear for wear and damage • The Reg Roll Drive Gear for wear and damage • The 2nd BTR Contact Retract Drive Gear for wear or damage • The Fuser Drive Gear for wear and damage • Use of paper out of spec (refer to the Media and Tray Specifications). • The Tray 1 Feed Out Sensor for contamination, improper installation, and Actuator operation failure • The Tray 1 Feed Out Sensor for failure: dc330 Component Control [077-104] (PL 13.4) • The connection between the Tray 1 Feed Out Sensor P/J179 and the MD PWB P/J525 for open circuit, short circuit, and poor contact • The Main Drive Motor for revolution failure: DC330 [042-002] (PL 3.2) • The 2nd BTR Contact Retract Motor for revolution failure: DC330 [094-003] (Contact), DC330 [094-004] (Retract) (PL 14.4) • The Fuser Drive Motor for revolution failure: DC330 [010-006] (PL 3.1) • The Takeaway Motor for revolution failure: DC330 [077-050] (PL 15.1) • The Reg Clutch for failure: DC330 [077-002] (PL 15.2) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 375.135
• Description: Reg Sensor On Jam (Tray 1). The Reg Sensor does not turn On within the specified time after the Reg Clutch On after the Feed from the Tray 1 has started.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Tray 1 Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Tray 1 Takeaway Roll Drive Gear for wear and damage • Use of paper out of spec (Refer to the spec in Chapter 6 General) • The Reg Sensor for contamination, improper installation, and Actuator operation failure • The Reg Sensor for failure: dc330 Component Control [077-103] (PL 15.2) • The connection between the Reg Sensor P/J160 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The Main Drive Motor for revolution failure: DC330 [042-002] (PL 3.2) • The Takeaway Motor for revolution failure: DC330 [077-050] (PL 15.1) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 375.212
• Description: Tray 1 Nudger Up Down Fault. The Tray 1 Nudger Position Sensor does not change within the specified time after the Tray 1 Nudger Up or Down operation has started.
• Troubleshooting Guides: Turn the power On and enter Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [075-002] (Tray 1 Feed/Nudger Motor). Does the Tray 5 Feed/ Nudger Motor rotate? Y↓ N→Is the voltage between the MD PWB P/J520-1 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Turn the power Off, then measure the Tray 1 Feed/Nudger Motor wire wound resistance. Check the resistance of the following. • Between the MD PWB P/J525-B10 and the P/J525-B11 • Between the MD PWB P/J525-B12 and the P/J525-B13 Is the resistance approx. 4.0 Ohm for each? (At 25° C / 77° F) Y↓ N→Check the connection between the MD PWB P/J525 and Tray 1 Feed/Nudger Motor P/J269 for open circuit, short circuit, and poor contact. If no problems are found, replace the Tray 1 Feed/Nudger Motor (PL 13.2 Item 6). Measure the resistance between the MD PWB P/J525-B10/B11/B12/B13 and the Frame. Is the resistance infinite for all? Y↓ N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Replace the following parts in sequence: • MD PWB • MCU PWB Press the Stop button. Turn On DC330 [075-102] (Tray 1 Nudger Position Sensor). Move the Shielding Board to block/clear the light path to the Tray 1 Nudger Position Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Tray 1 Nudger Position Sensor. Press the Stop button and turn the power Off. Check the Tray 1 Nudger Roll Up/Down mechanism for mechanical loading, the springs for deformation or snags. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.101
• Description: Reg Sensor Off Jam. The Reg Sensor does not turn Off within the specified time after the Reg Clutch On.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • Each Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Reg Roll and Pinch Roll for contamination, wear, and revolution failure • The 2nd BTR for contamination, wear, and revolution failure • Each Exit Roll and Pinch Roll for contamination, wear, and revolution failure • Each Takeaway Roll Drive Gear for wear and damage • The Reg Roll Drive Gear for wear and damage • The 2nd BTR Contact Retract Drive Gear for wear or damage • The Fuser Drive Gear for wear and damage • Each Exit Roll Drive Gear for wear and damage • Use of paper out of spec (refer to theMedia and Tray Specifications). • The Reg Sensor for contamination, improper installation, and Actuator operation failure • The Reg Sensor for failure: dc330 Component Control [077-103] (PL 15.2) • The connection between the Reg Sensor P/J160 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The Main Drive Motor for revolution failure: DC330 [042-002] (PL 3.2) • The 2nd BTR Contact Retract Motor for revolution failure: DC330 [094-003] (Contact), DC330 [094-004] (Retract) (PL 14.4) • The Fuser Drive Motor for revolution failure: DC330 [010-006] (PL 3.1) • The Takeaway Motor for revolution failure: DC330 [077-050] (PL 15.1) • The Reg Clutch for failure: DC330 [077-002] (PL 15.2) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.103
• Description: Exit Sensor 1 Off Jam. After the Fuser Exit Sensor turned On, the Fuser Exit Sensor did not turn Off within the specified time.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Fuser for wound up, stuck paper • Each Exit Roll and Pinch Roll for contamination, wear, and revolution failure • Each Exit Roll Drive Gear for wear and damage • The Exit 1 Gate for operation failure • The Exit 2 Gate for operation failure • Use of paper out of spec (refer to the Media and Tray Specifications). • The Fuser Exit Sensor for contamination, improper installation, and Actuator operation failure • The Fuser Exit Sensor for failure: dc330 Component Control [077-101] (PL 7.1) • The connection between the Fuser Assembly DJ600 and the MCU PWB P/J431 for open circuit, short circuit, and poor contact • The Fuser Drive Motor for revolution failure: DC330 [010-006] (PL 3.1) • The Exit 2 Drive Motor for revolution failure: DC330 [077-060] (PL 17.4) • The Exit 2 Gate Solenoid for failure: DC330 [077-003] (PL 17.5) • The Face Up Gate Solenoid for failure: DC330 [077-004] (PL 17.5) If no problems are found, replace the following parts in sequence: • MCU PWB • MD PWB

• Code: 377.104
• Description: Exit Sensor 1 Off Jam (Too Short). After the Fuser Exit Sensor turned On, the Fuser Exit Sensor turned Off before the specified time has passed.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Fuser for wound up, stuck paper • Each Exit Roll and Pinch Roll for contamination, wear, and revolution failure • Each Exit Roll Drive Gear for wear and damage • The Exit 1 Gate for operation failure • The Exit 2 Gate for operation failure • Use of paper out of spec (refer to the Media and Tray Specifications). • The Fuser Exit Sensor for contamination, improper installation, and Actuator operation failure • The Fuser Exit Sensor for failure: dc330 Component Control [077-101] (PL 7.1) • The connection between the Fuser Assembly DJ600 and the MCU PWB P/J431 for open circuit, short circuit, and poor contact • The Fuser Drive Motor for revolution failure: DC330 [010-006] (PL 3.1) • The Exit 2 Drive Motor for revolution failure: DC330 [077-060] (PL 17.4) • The Exit 2 Gate Solenoid for failure: DC330 [077-003] (PL 17.5) • The Face Up Gate Solenoid for failure: DC330 [077-004] (PL 17.5) If no problems are found, replace the following parts in sequence: • MCU PWB • MD PWB

• Code: 377.105
• Description: Exit Sensor 2 Off Jam. After the Exit 2 Sensor turned On, the Exit 2 Sensor did not turn Off within the specified time.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • The Exit 2 Roll and Pinch Roll for contamination, wear, and revolution failure • The Face Up Exit Roll and Pinch Roll for contamination, wear, and revolution failure • The Exit 2 Roll Drive Gear for wear and damage • The Exit 2 Gate for operation failure • The Face Up Exit Roll Drive Gear for wear and damage • Use of paper out of spec (refer to the Media and Tray Specifications). • The Exit 2 Sensor for contamination, improper installation, and Actuator operation failure • The Exit 2 Sensor for failure: dc330 Component Control [077-100] (PL 17.4) • The connection between the Exit 2 Sensor P/J164 and the MD PWB P/J522 for open circuit, short circuit, and poor contact • The Exit 2 Drive Motor for revolution failure: DC330 [077-060] (PL 17.4) • The Face Up Gate Solenoid for failure: DC330 [077-004] (PL 17.5) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.106
• Description: Exit Sensor 1 On Jam. The Fuser Exit Sensor does not turn On within the specified time after the Reg Clutch On.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • Each Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Reg Roll and Pinch Roll for contamination, wear, and revolution failure • The 2nd BTR for contamination, wear, and revolution failure • The Fuser for wound up, stuck paper • Each Takeaway Roll Drive Gear for wear and damage • The Reg Roll Drive Gear for wear and damage • The 2nd BTR Contact Retract Drive Gear for wear or damage • The Fuser Drive Gear for wear and damage • Use of paper out of spec (refer to the Media and Tray Specifications). • The Fuser Exit Sensor for contamination, improper installation, and Actuator operation failure • The Fuser Exit Sensor for failure: dc330 Component Control [077-101] (PL 7.1) • The connection between the Fuser Assembly DJ600 and the MCU PWB P/J431 for open circuit, short circuit, and poor contact • The Main Drive Motor for revolution failure: DC330 [042-002] (PL 3.2) • The 2nd BTR Contact Retract Motor for revolution failure: DC330 [094-003] (Contact), DC330 [094-004] (Retract) (PL 14.4) • The Fuser Drive Motor for revolution failure: DC330 [010-006] (PL 3.1) • The Takeaway Motor for revolution failure: DC330 [077-050] (PL 15.1) • The Reg Clutch for failure: DC330 [077-002] (PL 15.2) If no problems are found, replace the following parts in sequence: • MCU PWB • MD PWB

• Code: 377.109
• Description: Exit Sensor 2 On Jam. After the Fuser Exit Sensor turned On, the Exit 2 Sensor did not turn ON within the specified time.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • Each Exit Roll and Pinch Roll for contamination, wear, and revolution failure • The Fuser for wound up, stuck paper • Each Exit Roll Drive Gear for wear and damage • The Exit 2 Gate for operation failure • Use of paper out of spec (refer to theMedia and Tray Specifications). • The Exit 2 Sensor for contamination, improper installation, and Actuator operation failure • The Exit 2 Sensor for failure: dc330 Component Control [077-100] (PL 17.4) • The connection between the Exit 2 Sensor P/J164 and the MD PWB P/J522 for open circuit, short circuit, and poor contact • The Fuser Drive Motor for revolution failure: DC330 [010-006] (PL 3.1) • The Exit 2 Drive Motor for revolution failure: DC330 [077-060] (PL 17.4) • The Exit 2 Gate Solenoid for failure: DC330 [077-003] (PL 17.5) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.110
• Description: POB Sensor On Jam. The POB Sensor does not turn On within the specified time after the Reg Clutch On.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • Each Takeaway Roll and Pinch Roll for contamination, wear, and revolution failure • The Reg Roll and Pinch Roll for contamination, wear, and revolution failure • The 2nd BTR for contamination, wear, and revolution failure • The Transfer Belt for wound up, stuck paper • Each Takeaway Roll Drive Gear for wear and damage • The Reg Roll Drive Gear for wear and damage • The 2nd BTR Contact Retract Drive Gear for wear or damage • Use of paper out of spec (refer to the Media and Tray Specifications). • The POB Sensor for contamination and improper installation • The POB Sensor for failure: dc330 Component Control [077-102] (PL 14.4) • The connection between the POB Sensor P/J180 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The Main Drive Motor for revolution failure: DC330 [042-002] (PL 3.2) • The 2nd BTR Contact Retract Motor for revolution failure: DC330 [094-003] (Contact), DC330 [094-004] (Retract) (PL 14.4) • The Takeaway Motor for revolution failure): DC330 [077-050] (PL 15.1) • The Regret Clutch for failure: DC330 [077-002] (PL 15.2) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.130
• Description: Reg Sensor On Jam (Duplex Direct). The Reg Sensor does not turn On within the specified time after the Reg Clutch On after the Feed has started in Duplex Direct mode.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • Each Duplex Roll and Pinch Roll for contamination, wear, and revolution failure • Each Duplex Roll Drive Gear for wear and damage • Use of paper out of spec (refer to the Media and Tray Specifications). • The Reg Sensor for contamination, improper installation, and Actuator operation failure • The Reg Sensor for failure: dc330 Component Control [077-103] (PL 15.2) • The connection between the Reg Sensor P/J160 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The Duplex Motor for revolution failure: DC330 [077-073] (PL 14.5) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.131
• Description: Duplex Wait Sensor On Jam. The Duplex Wait Sensor does not turn On within the specified time after the Exit 2 Drive Motor has started rotating in the Duplex intake direction.
• Troubleshooting Guides: Check the following: • A paper transportation failure due to a foreign substance/burr on the paper path • Each Duplex Roll and Pinch Roll for contamination, wear, and revolution failure • Each Exit Roll and Pinch Roll for contamination, wear, and revolution failure • Each Duplex Roll Drive Gear for wear and damage • Each Exit Roll Drive Gear for wear and damage • The Exit 2 Gate for operation failure • Use of paper out of spec (refer to the Media and Tray Specifications). • The Duplex Wait Sensor for contamination, improper installation, and Actuator operation failure • The Duplex Wait Sensor for failure: dc330 Component Control [077-108] (PL 14.5) • The connection between the Duplex Wait Sensor P/J175 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The Duplex Motor for revolution failure: DC330 [077-073] (PL 14.5) • The Exit 2 Drive Motor for revolution failure: DC330 [077-062] (PL 17.4) • The Exit 2 Gate Solenoid for failure: DC330 [077-003] (PL 17.5) If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.211
• Description: Tray Module Kind Mismatch. A different type of Tray Module is connected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the following: • The DIP Switch settings on the Tray Module PWB
  Tray Type SW1 SW2 SW3 SW4 3TM ON OFF OFF ON TTM OFF ON ON ON
  • The connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 377.212
• Description: Tray Module Reset Fault. The Tray Module reset was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check whether the voltage between the Tray Module PWB P/J541-12 (+) and the GND (- ) is +5VDC and whether the voltage between the Tray Module PWB P/J541-10 (+) and the GND (-) is +24VDC. 3. Turn the power Off and check the connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 377.214
• Description: Tray Module Logic Fault. I/F mismatch between the IOT and the Tray Module was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 377.215
• Description: Tray Module Communication Fault. Communication error between Tray Module PWB and MCU PWB was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the connection between the MD PWB P592 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 10.9) • MD PWB • MCU PWB

• Code: 377.300
• Description: Front Cover Interlock Open. The Front Cover is open.
• Troubleshooting Guides: Check the following: • The Front Cover for damage or mismatch. • The Front Cover Interlock Switch for failure: dc330 Component Control [077-303] (PL 18.5) • The connection between the Front Cover Interlock Switch P/J101 and the MD PWB P/ J521 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.301
• Description: L/H Cover Interlock Open. The L/H Cover is open.
• Troubleshooting Guides: Check the following: • The L/H Cover Unit for damage or mismatch • The L/H Cover Interlock Switch for failure: dc330 Component Control [077-300] (PL 14.1) • The connection between the L/H Cover Interlock Switch P/J100 and the MD PWB P/ J534 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.305
• Description: Tray Module L/H Cover Open. The Tray Module L/H Cover is open.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check the following: • The Tray Module L/H Cover for damage or mismatch • The Tray Module L/H Cover Switch for failure: dc330 Component Control [077-306] (PL 10.12) • The connection between the Tray Module L/H Cover Switch P/J104 and the Tray Module PWB P/J549 for open circuit, short circuit, and poor contact If no problems are found, replace the Tray Module PWB.

• Code: 377.307
• Description: Duplex Cover Open. The Duplex Cover is open.
• Troubleshooting Guides: Check the following: • The Duplex Cover for damage or mismatch. • The Duplex Cover Switch for failure: dc330 Component Control [077-305] (PL 14.5) • The connection between the Duplex Cover Switch P/J176 and the MD PWB P/J523 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.308
• Description: L/H High Cover Open. The L/H High Cover is open.
• Troubleshooting Guides: Check the following: • The L/H High Cover Assembly for damage or mismatch • The L/H High Cover Switch for failure: dc330 Component Control [077-302] (PL 17.4) • The connection between the L/H High Cover Switch P/J168 and the MD PWB P/J522 for open circuit, short circuit, and poor contact If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.314
• Description: P/H Module Logic Fault. A fatal error was detected in the Tray Module.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the connection between the MD PWB P/J542 and the Tray Module PWB P/J541 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 377.320
• Description: All Feed Tray Broken. All the Feed Trays that are connected to the IOT were detected to have malfunctioned.
• Troubleshooting Guides: Enter dc122 Fault History. Go to the RAP of the affected Paper Tray.

• Code: 377.602
• Description: Transparency Sensor Fault. An abnormal value was detected from the Transparency Sensor. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The Transparency Sensor and Reflective Prism for contamination and improper installation • Use of Transparency out of spec (refer to the Media and Tray Specifications). • The Transparency Sensor for failure: dc140 Analog Monitor [077-200] (PL 15.2) • The connection between the Transparency Sensor P/J161 and the MD PWB P/J523 for open circuit, short circuit, and poor contact • The connector ( P/J452) between the MD PWB and the MCU PWB for poor connection If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.900
• Description: Reg Sensor Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Reg Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Reg Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Reg Sensor for failure: dc330 Component Control [077-103] (PL 15.2) • The connection between the Reg Sensor P/J160 and the MD PWB P/J523 for short circuit If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.901
• Description: Exit Sensor 1 Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Fuser Exit Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Fuser Exit Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Fuser Exit Sensor for failure: dc330 Component Control [077-101] (PL 7.1) • The connection between the Fuser Assembly DJ600 and the MCU PWB P/J431 for short circuit If no problems are found, replace the MCU PWB.

• Code: 377.902
• Description: Exit Sensor 2 Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Exit 2 Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Exit 2 Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Exit 2 Sensor for failure: dc330 Component Control [077-100] (PL 17.4) • The connection between the Exit 2 Sensor P/J164 and the MD PWB P/J522 for short circuit • The L/H High Cover Assembly for damage or mismatch If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.903
• Description: POB Sensor Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the POB Sensor detected paper.
• Troubleshooting Guides: Check the following: • The POB Sensor for remaining paper, contamination, or improper installation • The POB Sensor for failure: dc330 Component Control [077-102] (PL 14.4) • The connection between the POB Sensor P/J180 and the MD PWB P/J523 for short circuit If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 377.907
• Description: Duplex Wait Sensor Static Jam. When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Duplex Wait Sensor detected paper.
• Troubleshooting Guides: Check the following: • The Duplex Wait Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Duplex Wait Sensor for failure: dc330 Component Control [077-108] (PL 14.5) • The connection between the Duplex Wait Sensor P/J175 and the MD PWB P/J523 for short circuit If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 378.210
• Description: Tray 4 (TTM) Lift Failure. After the Tray 4 Lift/Feed Motor turned on, the Tray 4 Level Sensor did not turn on within the specified time.
• Troubleshooting Guides: • Reload paper in the tray correctly. • Remove foreign substances in the tray. • Power Off/On
  Execute dc330 Component Control [073-004] Tray 4 Lift/Feed Motor On. The Tray 3 Lift/Feed Motor can be heard. Y↓ N→There is +24 VDC from P/J541 pin 10 on the Tray Module PWB to GND. Y↓ N→Refer to Option DC Power Distribution and the +24 VDC-4 Wirenet to troubleshoot the 24 VDC circuit. Turn Off the power. Remove the Tray 4 Lift/Feed Motor, then measure the following resistances. • Between P/J222 pin-1 and P/J222 pin-2 • Between P/J222 pin-3 and P/J222 pin-4 All resistances are approx. 4 Ohms at 25° C / 77° F. Y↓ N→Replace the Tray 4 Lift/Feed Motor (PL 11.9 Item 4). Check the wires between P/J222 on the Tray 4 Lift/Feed Motor and P/J550 on the Tray Module PWB for an open or shorted circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair as required. Replace the Tray 4 Feed/Lift Motor (PL 11.9 Item 4). If the problem continues, replace the following in sequence: • Tray Module PWB • MD PWB • MCU PWB Check the installation of the Tray 4 Level Sensor (PL 11.9 Item 7) and the operation of the actuator. The Level Sensor is installed correctly and the actuator works. Y↓ N→Reinstall the Tray 4 Level Sensor (PL 11.9 Item 7). Execute DC330 [073-102], Tray 4 Level Sensor. Manually activate the Tray 4 Level Sensor (PL 11.9 Item 7). The display changes. Y↓ N→Check the wires between P/J111 on the Tray 4 Level Sensor and P/J548 on the Tray Module PWB for an open or shorted circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair as required. Disconnect P/J548 on the Tray Module PWB. There is approx. +5VDC from P 548 pin 13 to GND. Y↓ N→Replace the Tray Module PWB. Reconnect P/J548. Monitor the voltage between P/J548-15 (+) and GND (-) while you activate the actuator of the Tray 4 Level Sensor. The voltage changes. Y↓ N→Replace the Tray 4 Level Sensor (PL 11.9 Item 7). Replace the following in sequence: • Tray Module PWB • MD PWB • MCU PWB Check the mechanical components of the lift mechanism for dirty or damaged gears, broken or out-of-place cables. If a problem is found replace the Tray 4 Assembly. If the check is good, replace the following in sequence: • Tray Module PWB • MD PWB • MCU PWB

• Code: 378.211
• Description: Tray 5 (TTM) Lift Failure. After the Tray 5 Lift/Feed Motor turned on, the Tray 5 Level Sensor did not turn on within the specified time.
• Troubleshooting Guides: Execute dc330 Component Control [074-004] Tray 5 Lift/Feed Motor On. The Tray 4 Lift/Feed Motor can be heard. Y↓ N→There is +24 VDC from – P/J541 pin 10 on the Tray Module PWB to GND. Y↓ N→Refer to Option DC Power Distribution and the +24 VDC-4 Wirenet to troubleshoot the 24 VDC circuit. Turn Off the power. Remove the Tray 5 Lift/Feed Motor, then measure the following resistances. • Between P/J223 pin-1 and P/J223 pin-2 • Between P/J223 pin-3 and P/J223 pin-4 All resistances are approx. 4 Ohms at 25° C / 77° F. Y↓ N→Replace the Tray 5 Lift/Feed Motor (PL 11.11 Item 4). Check the wires between P/J223 on the Tray 5 Lift/Feed Motor and P/J550 on the Tray Module PWB for an open or shorted circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair as required. Replace the Tray 5 Feed/Lift Motor (PL 11.11 Item 4). If the problem continues, replace the following in sequence: • Tray Module PWB • MD PWB • MCU PWB Check the installation of the Tray 5 Level Sensor (PL 11.11 Item 7) and the operation of the actuator. The Level Sensor is installed correctly and the actuator works. Y↓ N→Reinstall the Tray 5 Level Sensor (PL 11.11 Item 7). Execute DC330 [074-102], Tray 5 Level Sensor. Manually activate the Tray 5 Level Sensor (PL 11.11 Item 7). The display changes. Y↓ N→Check the wires between P/J115 on the Tray 5 Level Sensor and P/J548 on the Tray Module PWB for an open or shorted circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair as required. Disconnect P/J548 on the Tray Module PWB. There is approx. +5VDC from P 548 pin 4 to GND. Y↓ N→Replace the Tray Module PWB (PL 11.7). Reconnect P/J548. Monitor the voltage between P/J548-6 (+) and GND (-) while you activate the actuator of the Tray 5 Level Sensor. The voltage changes. Y↓ N→Replace the Tray 5 Level Sensor (PL 11.11 Item 7). Replace the following in sequence: • Tray Module PWB • MD PWB • MCU PWB Check the mechanical components of the lift mechanism for dirty or damaged gears, broken or out-of-place cables. If a problem is found replace the Tray 5 Assembly. If the check is good, replace the following in sequence: • Tray Module PWB (PL 11.7) • MD PWB • MCU PWB

• Code: 378.945
• Description: TTM Tray 4 Lift NG. There is a problem with the TTM Tray 4 Lift.
• Troubleshooting Guides: Go to the 389.617 RAP.

• Code: 378.946
• Description: TTM Tray 5 Lift NG There is a problem with the TTM Tray 5 Lift.
• Troubleshooting Guides: Go to the 389.617 RAP.

• Code: 389.600
• Description: RC Sample Lateral Fail-A1. There is an error with the Cyan fast scan position that is used as a reference during A1 (fine adjustment pattern) and C patch detection. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the installation status of the IBT Assembly. Is the IBT Assembly installed properly? Y↓ N→Install the IBT Assembly properly. Replace the IBT Assembly

• Code: 389.601
• Description: RC Sample Block Fail-A1-In. During the A1 (fine adjustment pattern) and C patch detection, the patch at the MOB Sensor In side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: 1. Check the detection section of the MOB Sensor for contamination, the connectors for disconnection, and the connections for open circuit, short circuit, and poor contact. If no problems are found, replace the MOB ADC Assembly.

• Code: 389.603
• Description: RC Sample Block Fail-A1-Out. During the A1 (fine adjustment pattern) and C patch detection, the patch at the MOB Sensor Out side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: 1. Check the detection section of the MOB Sensor for contamination, the connectors for disconnection, and the connections for open circuit, short circuit, and poor contact. If no problems are found, replace the MOB ADC Assembly.

• Code: 389.604
• Description: RC Sample Block Fail-B-#1-In. During the B (rough adjustment pattern) patch detection, the #1 (Yellow) patch at the MOB Sensor In side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of Y color. Is the density of Y color normal? Y↓ N→Adjust to correct the density of Y color. Check the connection between the MOB Sensor In P/J150 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor In P/J150 to the MCU PWB P/J415 properly. Check the Y Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (Y) (PL 5.2 Item 9). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly. Check the Y Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace the Imaging Unit (Y) Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.606
• Description: RC Sample Block Fail-B-#1-Out. During the B (rough adjustment pattern) patch detection, the #1 (Yellow) patch at the MOB Sensor Out side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of Y color. Is the density of Y color normal? Y↓ N→Adjust to correct the density of Y color. Check the connection between the MOB Sensor Out P/J151 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor Out P/J151 to the MCU PWB P/J415 properly. Check the Y Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (Y) (PL 5.2 Item 9). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly. Check the Y Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace the Imaging Unit (Y). Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.607
• Description: RC Sample Block Fail-B-#2-In. During the B (rough adjustment pattern) patch detection, the #2 (Magenta) patch at the MOB Sensor In side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of M color. Is the density of M color normal? Y↓ N→Adjust to correct the density of M color. Check the connection between the MOB Sensor In P/J150 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor In P/J150 to the MCU PWB P/J415 properly. Check the M Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (M) (PL 5.2 Item 8). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly Check the M Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace the Imaging Unit (M) Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.609
• Description: RC Sample Block Fail-B-#2-Out. During the B (rough adjustment pattern) patch detection, the #2 (Magenta) patch at the MOB Sensor Out side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of M color. Is the density of M color normal? Y↓ N→Adjust to correct the density of M color. Check the connection between the MOB Sensor In P/J151 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor Out P/J151 to the MCU PWB P/J415 properly. Check the M Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (M) (PL 5.2 Item 8). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly. Check the M Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace the Imaging Unit (M) Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.610
• Description: RC Sample Block Fail-B-#3-In. During the B (rough adjustment pattern) patch detection, the #3 (Cyan) patch at the MOB Sensor In side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of C color. Is the density of C color normal? Y↓ N→Adjust to correct the density of C color. Check the connection between the MOB Sensor In P/J150 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor In P/J150 to the MCU PWB P/J415 properly. Check the C Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (C) (PL 5.2 Item 7). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly Check the C Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace Imaging Unit (C). Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.612
• Description: RC Sample Block Fail-B-#3-Out. During the B (rough adjustment pattern) patch detection, the #3 (Cyan) patch at the MOB Sensor Out side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of C color. Is the density of C color normal? Y↓ N→Adjust to correct the density of C color. Check the connection between the MOB Sensor Out P/J151 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor Out P/J151 to the MCU PWB P/J415 properly. Check the C Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (C) (PL 5.2 Item 7). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly. Check the C Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace Imaging Unit (C). Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.613
• Description: RC Sample Block Fail-B-#4-In. During the B (rough adjustment pattern) patch detection, the #4 (Black) patch at the MOB Sensor In side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of K color. Is the density of K color normal? Y↓ N→Adjust to correct the density of K color. Check the connection between the MOB Sensor In P/J150 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor In P/J150 to the MCU PWB P/J415 properly. Check the K Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (K) (PL 5.2 Item 6). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal?Y N Replace the IBT Assembly. Check the K Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace the Imaging Unit (K) Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.615
• Description: RC Sample Block Fail-B-#4-Out. During the B (rough adjustment pattern) patch detection, the #4 (Black) patch at the MOB Sensor Out side did not satisfy the defined number of valid sample blocks. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check the density of K color. Is the density of K color normal? Y↓ N→Adjust to correct the density of K color. Check the connection between the MOB Sensor Out P/J151 and the MCU PWB P/J415 for connector disconnection, open circuit, short circuit, and poor contact. Is the connection normal? Y↓ N→Connect the MOB Sensor Out P/J151 to the MCU PWB P/J415 properly. Check the K Magnet Roll for contamination, scratches, and distortion. Is the Magnet Roll normal? Y↓ N→Replace the Developer (K) (PL 5.2 Item 6). Check the Transfer Belt for contamination, scratches, and distortion. Is the Transfer Belt normal? Y↓ N→Replace the IBT Assembly(PL 6.1) Check the K Imaging Unit for contamination, scratches, and distortion. Is the Imaging Unit normal? Y↓ N→Replace the Imaging Unit (K). Replace the MOB ADC Assembly. If the problem persists, replace the MCU PWB.

• Code: 389.616
• Description: RC Data Over Flow Fail. The correction setting value of calculation result has exceeded the settable range. (This is a hidden failure. The Color Regi Spec cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Is the item that has reached the adjustment range (MIN or MAX), ‘Fast Scan Margin’ or ‘Slow Scan Margin’? Y↓ N→Check the following: • Check that the value of dc131 NVM Read/Write [760-024] is ‘0’. • The Imaging Unit (Y, M, C, K) for improper installation. If no problems are found, replace the following parts in sequence: • Imaging Unit (Y, M, C, K) • LPH Unit (Y, M, C, K) • Rear Holder Assembly Is the item that has reached the adjustment range (MIN or MAX) ‘Slow Scan Margin’? Y↓ N→Raise/lower the LPH (Y, M, C, K) 2 to 3 times to check the LPH lift up/down mechanism. If the problem persists, replace the LPH Unit (Y, M, C, K). Replace the MCU PWB.

• Code: 389.617
• Description: RC Lead Regi Over Range Fail. The result from adding the offset value to the color registration correction value has exceeded the settable range. (This is a hidden failure. The Alignment Lead Regi or Skew might have exceeded the adjustable range and Data is only recorded in history.)
• Troubleshooting Guides: 1. Check that the value of dc131 NVM Read/Write [760-063] is ‘0’. (Because this Fail occurs only when the NVM write data is incorrect or the NVM is corrupted, if the setting value is not ‘0’, reset it to ‘0’.) 2. Check that the value of DC131 [760-082] is between the values of DC131 [760-084] and DC131 [760-085]. (If it is not, set the value of DC131 [760-082] to be between the values of DC131 [760-084] and DC131 [760-085].) 3. Check that the value of DC131 [760-083] is between the values of DC131 [760-084] and DC131 [760-085]. (If it is not, set the value of DC131 [760-083] to be between the values of DC131 [760-084] and DC131 [760-085].)

• Code: 389.625
• Description: RC Data Linearity Fail Y. The result from adding the skew/bow correction value to the Y color linearity correction value has exceeded the settable range. (This is a hidden failure. The LPH Slow Scan linearity cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check that the value stored in LPH (Y) EEPROM is correct. Has any Y color related Chain No. 061 Fail occurred? Y↓ N→Check the following: • Check that the value of dc131 NVM Read/Write [760-024] is ‘0’. • The Imaging Unit (Y) for improper installation. If no problems are found, replace the following parts in sequence: • Imaging Unit (Y) • LPH Unit (Y) • Rear Holder Assembly (Y) Replace the LPH Unit (Y). If the problem persists, replace the MCU PWB.

• Code: 389.626
• Description: RC Data Linearity Fail M. The result from adding the skew/bow correction value to the M color linearity correction value has exceeded the settable range. (This is a hidden failure. The LPH Slow Scan linearity cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check that the value stored in LPH (M) EEPROM is correct. Has any M color related Chain No. 061 Fail occurred? Y↓ N→Check the following: • Check that the value of dc131 NVM Read/Write [760-024] is ‘0’. • The Imaging Unit (M) for improper installation. If no problems are found, replace the following parts in sequence: • Imaging (M) • LPH Unit (M) • Rear Holder Assembly (M) Replace the LPH Unit (M). If the problem persists, replace the MCU PWB.

• Code: 389.627
• Description: RC Data Linearity Fail C. The result from adding the skew/bow correction value to the C color linearity correction value has exceeded the settable range. (This is a hidden failure. The LPH Slow Scan linearity cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check that the value stored in LPH (C) EEPROM is correct. Has any C color related Chain No. 061 Fail occurred? Y↓ N→Check the following: • Check that the value of dc131 NVM Read/Write [760-024] is ‘0’. • The Imaging Unit (C) for improper installation. If no problems are found, replace the following parts in sequence: • Imaging Unit (C) • LPH Unit (C) • Rear Holder Assembly (C) Replace the LPH Unit (C). If the problem persists, replace the MCU PWB.

• Code: 389.628
• Description: RC Data Linearity Fail K. The result from adding the skew/bow correction value to the K color linearity correction value has exceeded the settable range. (This is a hidden failure. The LPH Slow Scan linearity cannot be guaranteed and Data is only recorded in history.)
• Troubleshooting Guides: Check that the value stored in LPH (K) EEPROM is correct. Has any K color related Chain No. 061 Fail occurred? Y↓ N→Check the following: • Check that the value of dc131 NVM Read/Write [760-024] is ‘0’. • The Imaging Unit (K) for improper installation. If no problems are found, replace the following parts in sequence: • Imaging Unit (K) • LPH Unit (K) • Rear Holder Assembly (K) Replace the LPH Unit (K). If the problem persists, replace the MCU PWB.

• Code: 391.313
• Description: CRUM ASIC Communication Fault. Communication error between CPU of the MCU PWB and ASIC was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power OFF and replace the MCU PWB.

• Code: 391.400
• Description: Waste Toner Bottle Near Full. The Waste Toner Bottle Full Sensor detected Near Full state.
• Troubleshooting Guides: The Waste Toner Bottle needs to be replaced soon. Replace the Waste Toner Bottle (PL 8.2) as required. If the problem persists, check the Waste Toner Bottle Full Sensor. Turn the power On and enter the Diag mode. Turn On dc330 Component Control [091-201]. Use a sheet of paper, etc. to block/clear the light path to the Waste Toner Bottle Full Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Waste Toner Bottle Full Sensor. Press the Stop button and turn the power Off. Replace the MCU PWB.

• Code: 391.401
• Description: Drum Cartridge K Near Life. It was detected that the replacement timing for the Imaging Unit (K) is closer than Pre Near.
• Troubleshooting Guides: The Imaging Unit (K) needs to be replaced soon. Replace the Imaging Unit (K) as required.

• Code: 391.402
• Description: Drum Cartridge K Life Over. Imaging Unit (K) has reached the end of its life span.
• Troubleshooting Guides: Replace the Imaging Unit (K).

• Code: 391.411
• Description: Drum Cartridge Y Near Life. It was detected that the replacement timing for the Imaging Unit (Y) is closer than Pre Near.
• Troubleshooting Guides: The Imaging Unit (Y) needs to be replaced soon. Replace the Imaging Unit (Y) as required.

• Code: 391.421
• Description: Drum Cartridge M Near Life. It was detected that the replacement timing for the Imaging Unit (M) is closer than Pre Near.
• Troubleshooting Guides: The Imaging Unit (M) needs to be replaced soon. Replace the Imaging Unit (M) as required.

• Code: 391.431
• Description: Drum Cartridge C Near Life. It was detected that the replacement timing for the Imaging Unit (C) is closer than Pre Near.
• Troubleshooting Guides: The Imaging Unit (C) needs to be replaced soon. Replace the Imaging Unit (C) as required.

• Code: 391.480
• Description: Drum Cartridge Y Life Over. Imaging Unit (Y) has reached the end of its life span.
• Troubleshooting Guides: Replace the Imaging Unit (Y).

• Code: 391.481
• Description: Drum Cartridge M Life Over. Imaging Unit (M) has reached the end of its life span.
• Troubleshooting Guides: Replace the Imaging Unit (M).

• Code: 391.482
• Description: Drum Cartridge C Life Over. Imaging Unit (C) has reached the end of its life span.
• Troubleshooting Guides: Replace the Imaging Unit (C).

• Code: 391.910
• Description: Waste Toner Bottle Not In Position. The Waste Toner Bottle is not in the proper position.
• Troubleshooting Guides: Check that the Bottle Guide Assembly at the machine side and the Waste Toner Bottle does not have any deformation or foreign substances, and that they are installed properly. Is the Waste Toner Bottle installed properly? Y↓ N→Install the Waste Toner Bottle properly. If there is any deformation, replace the Waste Toner Bottle (PL 8.2) and Bottle Guide Assembly (PL 8.2 Item 1). Check the Waste Toner Bottle Position Sensor. Turn the power On and enter Service Diag mode (Entering Service Diagnostics). Enter dc330 Component Control [091-200]. Use a sheet of paper, etc. to block/clear the light path to the Waste Toner Bottle Position Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Waste Toner Bottle Position Sensor. Press the Stop button and turn the power Off. Replace the MCU PWB.

• Code: 391.911
• Description: Waste Toner Bottle Full. After the Waste Toner Bottle Near Full has occurred, the PV exceeds the threshold value.
• Troubleshooting Guides: Replace the Waste Toner Bottle (PL 8.2). If the problem persists, check the Waste Toner Bottle Full Sensor. Enter dc330 Component Control [091-201]. Use a sheet of paper, etc. to block/ clear the light path to the Waste Toner Bottle Full Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to check the Waste Toner Bottle Full Sensor. Press the Stop button and turn the power Off. Replace the MCU PWB.

• Code: 391.913
• Description: Drum Cartridge K Life End. Imaging Unit (K) has reached the end of its life span.
• Troubleshooting Guides: Replace the Imaging Unit (K).

• Code: 391.914
• Description: Drum CRUM K Communication Fault. Communication failure with the Imaging Unit (K) CRUM was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (K) P/J115 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (K) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (K) CRUM for damage and foreign substances • The Imaging Unit (K) CRUM PWB for contamination or disengagement • The Imaging Unit (K) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (K) • Imaging Unit CRUM Coupler Assembly (K) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.915
• Description: Drum CRUM K Data Broken. The system detected that the data written to the Imaging Unit (K) CRUM and the data read from the Imaging Unit (K) CRUM do not match.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (K) and check for improper installation. If no problems are found, replace the Imaging Unit (K).

• Code: 391.916
• Description: Drum CRUM K Data Mismatch. Incorrect authentication area data was detected in Imaging Unit (K) CRUM.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (K) and check for improper installation. If no problems are found, replace it with the correct the Imaging Unit (K).

• Code: 391.917
• Description: Drum CRUM Y Communication Fault. Communication failure with the Imaging Unit (Y) CRUM was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (Y) P/J112 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (Y) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (Y) CRUM for damage and foreign substances • The Imaging Unit (Y) CRUM PWB for contamination or disengagement • The Imaging Unit (Y) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (Y) • Imaging Unit CRUM Coupler Assembly (Y) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.918
• Description: Drum CRUM M Communication Fault. Communication failure with Imaging Unit (M) CRUM was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (M) P/J113 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (M) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (M) CRUM for damage and foreign substances • The Imaging Unit (M) CRUM PWB for contamination or disengagement • The Imaging Unit (M) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (M) • Imaging Unit CRUM Coupler Assembly (M) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.919
• Description: Drum CRUM C Communication Fault. Communication failure with Imaging Unit (C) CRUM was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Turn the power Off and check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (C) P/J114 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (C) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (C) CRUM for damage and foreign substances • The Imaging Unit (C) CRUM PWB for contamination or disengagement • The Imaging Unit (C) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (C) • Imaging Unit CRUM Coupler Assembly (C) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.921
• Description: Drum CRUM K Not In Position. The Imaging Unit (K) CRUM is not in the proper position (loose CRUM).
• Troubleshooting Guides: 1. Remove and reinstall the Imaging Unit (K). 2. Polish the connection terminals between the Imaging Unit (K) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (K) CRUM with dry cloth. (When cleaning, do not use Imaging Unit cleaner, etc.) 3. Check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (K) P/J115 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (K) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (K) CRUM for damage and foreign substances • The Imaging Unit (K) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (K) • Imaging Unit CRUM Coupler Assembly (K) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.927
• Description: Drum CRUM Y Not In Position. The Imaging Unit (Y) CRUM is not in the proper position (loose CRUM).
• Troubleshooting Guides: 1. Remove and reinstall the Imaging Unit (Y). 2. Polish the connection terminals between the Imaging Unit (Y) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (Y) CRUM with dry cloth. (When cleaning, do not use Imaging Unit cleaner, etc.) 3. Check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (Y) P/J112 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (Y) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (Y) CRUM for damage and foreign substances • The Imaging Unit (Y) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (Y) • Imaging Unit CRUM Coupler Assembly (Y) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.928
• Description: Drum CRUM M Not In Position. The Imaging Unit (M) CRUM is not in the proper position (loose CRUM).
• Troubleshooting Guides: 1. Remove and reinstall the Imaging Unit (M). 2. Polish the connection terminals between the Imaging Unit (M) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (M) CRUM with dry cloth. (When cleaning, do not use Imaging Unit cleaner, etc.) 3. Check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (M) P/J113 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (M) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (M) CRUM for damage and foreign substances • The Imaging Unit (M) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (M) • Imaging Unit CRUM Coupler Assembly (M) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.929
• Description: Drum CRUM C Not In Position. The Imaging Unit (C) CRUM is not in the proper position (loose CRUM).
• Troubleshooting Guides: 1. Remove and reinstall the Imaging Unit (C). 2. Polish the connection terminals between the Imaging Unit (C) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (C) CRUM with dry cloth. (When cleaning, do not use Imaging Unit cleaner, etc.) 3. Check the following: • The connection between the MD PWB P/J528 and the Imaging Unit CRUM Coupler Assembly (C) P/J14 for open circuit, short circuit, and poor contact • The connection terminals between the Imaging Unit (C) CRUM PWB and the Imaging Unit CRUM Coupler Assembly (C) CRUM for damage and foreign substances • The Imaging Unit (C) for improper installation If no problems are found, replace the following parts in sequence: • Imaging Unit (C) • Imaging Unit CRUM Coupler Assembly (C) (PL 8.1) • MD PWB • MCU PWB

• Code: 391.940
• Description: Drum CRUM Y Data Broken. The system detected that the data written to the Drum (Y) CRUM and the data read from the Imaging Unit (Y) CRUM do not match.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (Y) and check for improper installation. If no problems are found, replace the Imaging Unit (Y).

• Code: 391.941
• Description: Drum CRUM C Data Broken. The system detected that the data written to the Imaging Unit (M) CRUM and the data read from the Imaging Unit (M) CRUM do not match.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (M) and check for improper installation. If no problems are found, replace the Drum (M).

• Code: 391.942
• Description: Drum CRUM C Data Broken. The system detected that the data written to the Imaging Unit (C) CRUM and the data read from the Imaging Unit (C) CRUM do not match.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (C) and check for improper installation. If no problems are found, replace the Imaging Unit (C).

• Code: 391.943
• Description: Drum CRUM Y Data Mismatch. Incorrect authentication area data was detected in the Imaging Unit (Y) CRUM.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (Y) and check for improper installation. If no problems are found, replace it with the correct Imaging Unit (Y).

• Code: 391.944
• Description: Drum CRUM M Data Mismatch. Incorrect authentication area data was detected in the Imaging Unit (M) CRUM.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (M) and check for improper installation. If no problems are found, replace it with the correct Imaging Unit (M).

• Code: 391.945
• Description: Drum CRUM C Data Mismatch. Incorrect authentication area data was detected in the Imaging Unit (C) CRUM.
• Troubleshooting Guides: Remove and reinstall the Imaging Unit (C) and check for improper installation. If no problems are found, replace it with the correct Imaging Unit (C).

• Code: 392.312
• Description: ATC Fault [Y]. The frequency at which the ATC Average Fail [Y] or the ATC Amplitude Fail [Y] has been occurring has exceeded the threshold value.
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (Y) and the ATC PWB P/J124 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (Y) (PL 5.1) for revolution failure: dc330 Component Control [093-001] • The Drum Drive Motor (Y, M, C) (PL 3.3) for revolution failure: DC330 [091-027] • The Dev Drive Motor (Y, M, C) (PL 3.3) for revolution failure: DC330 [093-022] • The path from Toner Cartridge (Y) to Developer (Y) for toner blockage • The Developer (Y) for internal toner blockage • The Toner Cartridge (Y) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (Y) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.313
• Description: ATC Fault [M]. The frequency at which the ATC Average Fail [M] or the ATC Amplitude Fail [M] has been occurring has exceeded the threshold value.
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (M) and the ATC PWB P/J125 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (M) (PL 5.1) for revolution failure: dc330 Component Control [093-006] • The Drum Drive Motor (Y, M, C) (PL 3.3) for revolution failure: DC330 [091-027] • The Dev Drive Motor (Y, M, C) (PL 3.3) for revolution failure: DC330 [093-022] • The path from Toner Cartridge (M) to Developer (M) for toner blockage • The Developer (M) for internal toner blockage • The Toner Cartridge (M) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (M) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.314
• Description: ATC Fault [C]. The frequency at which the ATC Average Fail [C] or the ATC Amplitude Fail [C] has been occurring has exceeded the threshold value.
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (C) and the ATC PWB P/J126 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (C) (PL 5.1) for revolution failure: dc330 Component Control [093-011] • The Drum Drive Motor (Y, M, C) (PL 3.3) for revolution failure: DC330 [091-027] • The Dev Drive Motor (Y, M, C) (PL 3.3) for revolution failure: DC330 [093-022] • The path from Toner Cartridge (C) to Developer (C) for toner blockage • The Developer (C) for internal toner blockage • The Toner Cartridge (C) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (C) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.315
• Description: ATC Fault [K]. The frequency at which the ATC Average Fail [K] or the ATC Amplitude Fail [K] has been occurring has exceeded the threshold value.
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (K) and the ATC PWB P/J127 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (K) (PL 5.1) for revolution failure: dc330 Component Control [093-016] • The Drum/Dev Drive Motor (K) (PL 3.3) for revolution failure): DC330 [091-033] • The path from Toner Cartridge (K) (PL 3.3) to Developer (K) for toner blockage • The Developer (K) for internal toner blockage • The Toner Cartridge (K) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (K) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.649
• Description: ADC Shutter Open Fault. The ADC Sensor shutters is open (cannot be closed). (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the connection between the ADC Sensor (MOB ADC Assembly) P/J153 and the MCU PWB P/J415 for open circuit, short circuit, and poor contact. Also check whether there is opening/ closing failure due to foreign substances/burrs, etc. at the shutter section of the ADC Sensor. If no problems are found, replace the following parts in sequence: • MOB ADC Assembly • MCU PWB • MCU PWB

• Code: 392.650
• Description: ADC Shutter Close Fault. The ADC Sensor shutters is closed (cannot be opened). (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the connection between the ADC Sensor (MOB ADC Assembly) P/J153 and the MCU PWB P/J415 for open circuit, short circuit, and poor contact. Also check whether there is opening/ closing failure due to foreign substances/burrs, etc. at the shutter section of the ADC Sensor. If no problems are found, replace the following parts in sequence: • MOB ADC Assembly • MCU PWB • MCU PWB

• Code: 392.651
• Description: ADC Sensor Fault. The ADC Sensor read value of the density reference patch is abnormal. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the connection between the ADC Sensor (MOB ADC Assembly) P/J153 and the MCU PWB P/J415 for open circuit, short circuit, and poor contact. Also check whether there is poor connection or foreign substances at the detection section of the ADC Sensor. If no problems are found, replace the following parts in sequence: • MOB ADC Assembly • IBT Assembly • MCU PWB • MCU PWB

• Code: 392.657
• Description: ATC Amplitude Fault [Y]. The difference between the maximum and minimum values in the ATC Sensor (Y) measurement set is lower than the threshold value. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (Y) and the ATC PWB P/J124 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (Y) for revolution failure: dc330 Component Control [093-001] (PL 5.1) • The Drum Drive Motor (Y, M, C) for revolution failure: DC330 [091-027] (PL 3.3) • The Dev Drive Motor (Y, M, C) for revolution failure: DC330 [093-022] (PL 3.3) • The path from Toner Cartridge (Y) to Developer (Y) for toner blockage • The Developer (Y) for internal toner blockage • The Toner Cartridge (Y) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (Y) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.658
• Description: ATC Amplitude Fault [M]. The difference between the maximum and minimum values in the ATC Sensor (M) measurement set is lower than the threshold value. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (M) and the ATC PWB P/J125 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (M) for revolution failure: dc330 Component Control0 [093- 006] (PL 5.1) • The Drum Drive Motor (Y, M, C) for revolution failure: DC330 [091-027] (PL 3.3) • The Dev Drive Motor (Y, M, C) for revolution failure): DC330 [093-022] (PL 3.3) • The path from Toner Cartridge (M) to Developer (M) for toner blockage • The Developer (M) for internal toner blockage • The Toner Cartridge (M) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (M) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.659
• Description: ATC Amplitude Fault [C]. The difference between the maximum and minimum values in the ATC Sensor (C) measurement set is lower than the threshold value. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (C) and the ATC PWB P/J126 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (C) for revolution failure: dc330 Component Control [093-011] (PL 5.1) • The Drum Drive Motor (Y, M, C) for revolution failure: DC330 [091-027] (PL 3.3) • The Dev Drive Motor (Y, M, C) for revolution failure: DC330 [093-022] (PL 3.3) • The path from Toner Cartridge (C) to Developer (C) for toner blockage • The Developer (C) for internal toner blockage • The Toner Cartridge (C) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (C) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.660
• Description: ATC Amplitude Fault [K]. The difference between the maximum and minimum values in the ATC Sensor (K) measurement set is lower than the threshold value. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (K) and the ATC PWB P/J127 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (K) for revolution failure: dc330 Component Control [093-016] (PL 5.1) • The Drum/Dev Drive Motor (K) for revolution failure: DC330 [091-033] (PL 3.3) • The path from Toner Cartridge (K) to Developer (K) for toner blockage • The Developer (K) for internal toner blockage • The Toner Cartridge (K) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (K) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.661
• Description: Temperature Sensor Fault. Abnormal value was detected by the Environment Sensor (Temperature). (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the connection between the Environment Sensor (MOB ADC Assembly) P/J154 and the MCU PWB P/J415 for open circuit, short circuit, and poor contact. Also check whether there is poor connection or foreign substances at the detection section of the Environment Sensor. If no problems are found, replace the following parts in sequence: • MOB ADC Assembly • MCU PWB

• Code: 392.662
• Description: Humidity Sensor Fault. Abnormal value was detected by the Environment Sensor (Humidity). (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the connection between the Environment Sensor (MOB ADC Assembly) P/J154 and the MCU PWB P/J415 for open circuit, short circuit, and poor contact. Also check whether there is poor connection or foreign substances at the detection section of the Environment Sensor. If no problems are found, replace the following parts in sequence: • MOB ADC Assembly • MCU PWB

• Code: 392.665
• Description: ATC Average Fault [Y]. The average measured value of ATC Sensor (Y) is out of the range of appropriate values. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (Y) and the ATC PWB P/J124 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (Y) for revolution failure: dc330 Component Control [093-001] (PL 5.1) • The Drum Drive Motor (Y, M, C) for revolution failure: DC330 [091-027] (PL 3.3) • The Dev Drive Motor (Y, M, C) for revolution failure: DC330 [093-022] (PL 3.3) • The path from Toner Cartridge (Y) to Developer (Y) for toner blockage • The Developer (Y) for internal toner blockage • The Toner Cartridge (Y) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (Y) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.666
• Description: ATC Average Fault [M]. The average measured value of ATC Sensor (M) is out of the range of appropriate values. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (M) and the ATC PWB P/J125 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (M) for revolution failure: dc330 Component Control [093-006] (PL 5.1) • The Drum Drive Motor (Y, M, C) for revolution failure: DC330 [091-027] (PL 3.3) • The Dev Drive Motor (Y, M, C) for revolution failure: DC330 [093-022] (PL 3.3) • The path from Toner Cartridge (M) to Developer (M) for toner blockage • The Developer (M) for internal toner blockage • The Toner Cartridge (M) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (M) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.667
• Description: ATC Average Fault [C]. The average measured value of ATC Sensor (C) is out of the range of appropriate values. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (C) and the ATC PWB P/J126 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (C) for revolution failure: dc330 Component Control [093-011] (PL 5.1) • The Drum Drive Motor (Y, M, C) for revolution failure: DC330 [091-027] (PL 3.3) • The Dev Drive Motor (Y, M, C) for revolution failure: DC330 [093-022] (PL 3.3) • The path from Toner Cartridge (C) to Developer (C) for toner blockage • The Developer (C) for internal toner blockage • The Toner Cartridge (C) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (C) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.668
• Description: ATC Average Fault [K]. The average measured value of ATC Sensor (K) is out of the range of appropriate values. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Check the following: • The connection between the ATC Sensor (K) and the ATC PWB P/J127 for open circuit, short circuit, and poor contact • The connection between the ATC PWB P/J633 and the MD PWB P/J528 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (K) for revolution failure: dc330 Component Control [093-016] (PL 5.1) • The Drum/Dev Drive Motor (K) for revolution failure: DC330 [091-033] (PL 3.3) • The Drum/Dev Drive Motor (K) for revolution failure: DC330 [091-033] (PL 3.3) • The path from Toner Cartridge (K) to Developer (K) for toner blockage • The Developer (K) for internal toner blockage • The Toner Cartridge (K) for internal toner blockage If no problems are found, replace the following parts in sequence: • ATC Sensor (K) (PL 5.2 Item 4) • ATC PWB • MD PWB • MCU PWB

• Code: 392.670
• Description: ADC Patch Fault [Y]. The ADC patch of Y color is abnormally light. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [Y] has occurred. Has Fail 392.651 or 392.312 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (Y) for contamination • The LPH (Y) for contamination • The 1st BTR (Y) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (Y) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (Y) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (Y) • LPH Assembly (Y) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.671
• Description: ADC Patch Fault [M]. The ADC patch of M color is abnormally light. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [M] has occurred. Has Fail 392.651 or 392.313 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (M) for contamination • The LPH (M) for contamination • The 1st BTR (M) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (M) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (M) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (M) • LPH Assembly (M) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.672
• Description: ADC Patch Fault [C]. The ADC patch of C color is abnormally light. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [C] has occurred. Has Fail 392.651 or 392.314 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (C) for contamination • The LPH (C) for contamination • The 1st BTR (C) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (C) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (C) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (C) • LPH Assembly (C) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.673
• Description: ADC Patch Fault [K]. The ADC patch of K color is abnormally light. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [K] has occurred. Has Fail 392.651 or 392.315 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (K) for contamination • The LPH (K) for contamination • The 1st BTR (K) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (K) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (K) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (K) • LPH Assembly (K) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.675
• Description: ADC Mini Setup Fault [Y]. The difference in densities among the ADC patches of Y color is abnormal. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Has Fail 392.651 or 392.312 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (Y) for contamination • The 1st BTR (Y) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (Y) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (BCR) and the BCR (Y) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (Y) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (Y) • HVPS (BCR) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.676
• Description: ADC Mini Setup Fault [M]. The difference in densities among the ADC patches of M color is abnormal. (This is a hidden failure. (Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [M] has occurred. Has Fail 392.651 or 392.313 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (M) for contamination • The 1st BTR (M) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (M) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (BCR) and the BCR (M) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (M) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (M) • HVPS (BCR) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.677
• Description: ADC Mini Setup Fault [C]. The difference in densities among the ADC patches of C color is abnormal. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [C] has occurred. Has Fail 392.651 or 392.314 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (C) for contamination • The 1st BTR (C) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (C) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (BCR) and the BCR (C) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (C) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (C) • HVPS (BCR) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP.

• Code: 392.678
• Description: ADC Mini Setup Fault [K]. The difference in densities among the ADC patches of K color is abnormal. (This is a hidden failure. Data is only recorded in history.)
• Troubleshooting Guides: Enter dc122 Fault History. Check whether ADC Sensor Fail or ATC Fail [K] has occurred. Has Fail 392.651 or 392.315 occurred? Y↓ N→Turn the power Off and check the following: • The Drum (K) for contamination • The 1st BTR (K) for contamination • The Transfer Belt for contamination • The connection and board springs between the HVPS (1st/2nd/DTC) and the 1st BTR (K) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (BCR) and the BCR (K) for open circuits, short circuits, and poor contacts • The connection and board springs between the HVPS (Dev) and the Magnet Roll (K) for open circuits, short circuits, and poor contacts If no problems are found, replace the following parts in sequence: • Imaging Unit (K) • HVPS (BCR) • HVPS (Dev) • HVPS (1st/2nd/DTC) • MCU PWB Go to the appropriate RAP

• Code: 393.314
• Description: Y Disp Motor Fault. Regardless of low usage of toner from Y Toner Cartridge, it was detected to be empty.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Replace the Toner Cartridge (Y). If the problem persists, check the following: • The connectors of the MCU PWB P/J411 and the Toner CRUM Coupler (Y) P/J120 for damage, foreign substances, bent connector pins, burns, and improper soldering on the PWB • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler (Y) P/J120 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (Y) (PL 5.1): dc330 Component Control [093-001] • The drive transmission path in the Dispense Assembly • The MCU PWB for failure.

• Code: 393.315
• Description: M Disp Motor Fault. Regardless of low usage of toner from M Toner Cartridge, it was detected to be empty.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Replace the Toner Cartridge (M). If the problem persists, check the following: • The connectors of the MCU PWB P/J411 and the Toner CRUM Coupler (M) P/J121 for damage, foreign substances, bent connector pins, burns, and improper soldering on the PWB • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler (M) P/J121 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (M) (PL 5.1): dc330 Component Control [093-006] • The drive transmission path in the Dispense Assembly • The MCU PWB for failure.

• Code: 393.316
• Description: C Disp Motor Fault. Regardless of low usage of toner from C Toner Cartridge, it was detected to be empty.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Replace the Toner Cartridge (C). If the problem persists, check the following: • The connectors of the MCU PWB P/J411 and the Toner CRUM Coupler (C) P/J122 for damage, foreign substances, bent connector pins, burns, and improper soldering on the PWB • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler (C) P/J122 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (C) (PL 5.1): dc330 Component Control [093-011] • The drive transmission path in the Dispense Assembly • The MCU PWB for failure.

• Code: 393.317
• Description: K Disp Motor Fault. Regardless of low usage of toner from K Toner Cartridge, it was detected to be empty.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Replace the Toner Cartridge (K). If the problem persists, check the following: • The connectors of the MCU PWB P/J411 and the Toner CRUM Coupler (K) P/J123 for damage, foreign substances, bent connector pins, burns, and improper soldering on the PWB • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler (K) P/J123 for open circuit, short circuit, and poor contact • The Toner Dispense Motor (K) (PL 5.1): dc330 Component Control [093-016] • The drive transmission path in the Dispense Assembly • The MCU PWB for failure.

• Code: 393.324
• Description: Dev Y, M, C Motor Fault. The Dev Motor (Y, M, C) revolution failure was detected.
• Troubleshooting Guides: Turn the power Off and remove the Front Cover. Remove the Imaging Unit (Y, M, C) and the Developer (Y, M, C) and cheat the Front Cover Interlock Switch. Turn the power On and enter Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [093-022] (Dev Drive Motor Y, M, C). Does the Dev Drive Motor (Y, M, C) rotate? Y↓ N→Turn the power Off and remove the Rear Upper Cover. Turn the power On. Is the voltage between the MD PWB P/J526-7 (+) and the GND (-) +24VDC? Y↓ N→Go to +24VDC Power RAP. Is the voltage between the MD PWB P/J527-B16 (+) and the GND (-) +5VDC? Y↓ N→Go to +5VDC Power RAP. Turn the power Off and check the connections between the MD PWB P/J526 and the Dev Drive Motor (Y, M, C) P/J251, as well as between the MD PWB P/J527 and the Dev Drive Motor (Y, M, C) P/J252 for open circuits, short circuits, and poor contacts. If no problems are found, replace the following parts in sequence: • Dev Drive Motor (Y, M, C) (PL 3.3) • MD PWB • MCU PWB Press the Stop button and turn the power Off. Install the Drum (Y, M, C), the Developer (Y, M, C), and the Front Cover. Turn the power On and enter Service Diag mode. Turn On dc330 Component Control [093- 022] (Dev Drive Motor Y, M, C). Does the Dev Drive Motor (Y, M, C) rotate? Y↓ N→Check the Developer (Y, M, C) for loading. Press the Stop button and turn the power Off. Check the connection between the Dev Drive Motor (Y, M, C) P/J252-8 and the MD PWB P/J527-B9 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 393.400
• Description: Y Toner Cartridge Near Empty. It was detected that the replacement timing for Toner Cartridge (Y) is closer than Pre Near.
• Troubleshooting Guides: The Toner Cartridge (Y) needs to be replaced soon. Replace the Toner Cartridge (Y) as required.

• Code: 393.423
• Description: M Toner Cartridge Near Empty. It was detected that the replacement timing for Toner Cartridge (M) is closer than Pre Near.
• Troubleshooting Guides: The Toner Cartridge (M) needs to be replaced soon. Replace the Toner Cartridge (M) as required.

• Code: 393.424
• Description: C Toner Cartridge Near Empty. It was detected that the replacement timing for Toner Cartridge (C) is closer than Pre Near.
• Troubleshooting Guides: The Toner Cartridge (C) needs to be replaced soon. Replace the Toner Cartridge (C) as required.

• Code: 393.425
• Description: K Toner Cartridge Near Empty. It was detected that the replacement timing for Toner Cartridge (K) is closer than Pre Near.
• Troubleshooting Guides: The Toner Cartridge (K) needs to be replaced soon. Replace the Toner Cartridge (K) as required.

• Code: 393.912
• Description: K Toner Cartridge Empty. The K Toner Cartridge Empty state was detected.
• Troubleshooting Guides: Replace the Toner Cartridge (K). No special action necessary.

• Code: 393.916
• Description: Toner K CRUM Not In Position. The Toner CRUM (K) is not in the proper position.
• Troubleshooting Guides: 1. Remove and reinstall the Toner Cartridge (K). 2. Polish the connection terminals between the Toner Cartridge (K) CRUM PWB and the Toner CRUM Coupler Assembly (K) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 3. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (K) P/J123 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (K) CRUM PWB and the Toner CRUM Coupler Assembly (K) CRUM for damage and foreign substances • The Toner Cartridge (K) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (K) • Toner CRUM Coupler Assembly (K) (PL 5.1) • MCU PWB • Go to 393.926 Toner K CRUM Data Mismatch Fault.

• Code: 393.924
• Description: Toner K CRUM Communication Fault. Communication failure with Toner CRUM (K) was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check the connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (K) P/J123 for open circuit, short circuit, and poor contact. Also, remove and reinstall the Toner Cartridge (K) and check for improper installation. If no problems are found, replace the following parts in sequence: • Toner Cartridge (K) • Toner CRUM Coupler Assembly (K) (PL 5.1) • MCU PWB • Go to 393.926 Toner K CRUM Data Mismatch Fault

• Code: 393.925
• Description: Toner K CRUM Data Broken Fault. The system detected that the data written to the Toner CRUM (K) and the data read from the Toner CRUM (K) do not match.
• Troubleshooting Guides: An Error Message appears on the UI – Reinsert an improperly seated consumable or replace any consumables with Error. Press Machine Status button and select Supplies tab for details. Remove and reinstall the Black Toner Cartridge and check for improper installation. The problem continues Y↓ N→End Check the NVM locations
  740-053 Geographic Setting 3 = North America/Europe 12 = DMO 15 = Worldwide 740-055 Contract Type 2 = Sold 3 = Metered 31 = Neutral
  The NVM values match the expected customer configuration. Y↓ N→Determine correct Contract Type from customer. Contact Technical Support Center or your NTS for the CRUM conversion procedure. 1. Polish the connection terminals between the Toner Cartridge (K) CRUM PWB and the Toner CRUM Coupler Assembly (K) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 2. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (K) P/J123 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (K) CRUM PWB and the Toner CRUM Coupler Assembly (K) CRUM for damage and foreign substances • The Toner Cartridge (K) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1) • MCU PWB

• Code: 393.926
• Description: Toner K CRUM Data Mismatch Fault. Incorrect authentication area data was detected in the Black Toner CRUM. This fault is displayed if different type of Toner cartridge is installed than what the printer is currently set to accept. The types of toner are: NA/XE, DMO, FX and Metered.
• Troubleshooting Guides: An Error Message appears on the UI – Reinsert an improperly seated consumable or replace any consumables with Error. Press Machine Status button and select Supplies tab for details. Remove and reinstall the Black Toner Cartridge and check for improper installation. The problem continues Y↓ N→End Contact second level support to obtain a secure snippet to reset the printer to the neutral configuration. You will need the printer’s serial number and current print count. The snippet will be effective if installed within 500 prints of the current print count. After sending the snippet, the next toner cartridge installed will set the region code so make sure that the cartridge installed is the correct one for the region. Is the issue still present after sending the secure snippet? Y↓ N→End. 1. Polish the connection terminals between the Toner Cartridge (K) CRUM PWB and the Toner CRUM Coupler Assembly (K) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 2. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (K) P/J123 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (K) CRUM PWB and the Toner CRUM Coupler Assembly (K) CRUM for damage and foreign substances • The Toner Cartridge (K) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1)

• Code: 393.927
• Description: Toner Y CRUM Communication Fault. Communication failure with Toner CRUM (Y) was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check the connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (Y) P/J120 for open circuit, short circuit, and poor contact. Also, remove and reinstall the Toner Cartridge (Y) and check for improper installation. If no problems are found, replace the following parts in sequence: • Toner Cartridge (Y) • Toner CRUM Coupler Assembly (Y) (PL 5.1) • MCU PWB • Go to 393.960 Toner Y CRUM Data Mismatch Fault

• Code: 393.941
• Description: Toner M CRUM Communication Fault. Communication failure with Toner CRUM (M) was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check the connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (M) P/J121 for open circuit, short circuit, and poor contact. Also, remove and reinstall the Toner Cartridge (M) and check for improper installation. If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1) • MCU PWB • Go to 393.961 Toner M CRUM Data Mismatch Fault

• Code: 393.942
• Description: Toner C CRUM Communication Fault. Communication failure with Toner CRUM (C) was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check the connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (C) P/J122 for open circuit, short circuit, and poor contact. Also, remove and reinstall the Toner Cartridge (C) and check for improper installation. If no problems are found, replace the following parts in sequence: • Toner Cartridge (C) • Toner CRUM Coupler Assembly (C) (PL 5.1) • MCU PWB • Go to 393.962 Toner C CRUM Data Mismatch Fault

• Code: 393.943
• Description: Toner Y CRUM Communication Fault. Communication failure with Toner CRUM (Y) was detected.
• Troubleshooting Guides: 1. Turn the power Off and On. 2. Check the connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (Y) P/J120 for open circuit, short circuit, and poor contact. Also, remove and reinstall the Toner Cartridge (Y) and check for improper installation. If no problems are found, replace the following parts in sequence: • Toner Cartridge (Y) • Toner CRUM Coupler Assembly (Y) (PL 5.1) • MCU PWB • Go to 393.960 Toner Y CRUM Data Mismatch Fault

• Code: 393.950
• Description: Toner Y CRUM Data Broken Fault. The system detected that the data written to the Toner CRUM (Y) and the data read from the Toner CRUM (Y) do not match.
• Troubleshooting Guides: Remove and reinstall the Toner Cartridge (Y) and check for improper installation. If no problems are found, replace the Toner Cartridge (Y). Go to 393.960 Toner Y CRUM Data Mismatch Fault.

• Code: 393.951
• Description: Toner M CRUM Data Broken Fault. The system detected that the data written to the Toner CRUM (M) and the data read from the Toner CRUM (M) do not match.
• Troubleshooting Guides: Remove and reinstall the Toner Cartridge (M) and check for improper installation. If no problems are found, replace the Toner Cartridge (M). Go to 393.961 Toner M CRUM Data Mismatch Fault

• Code: 393.952
• Description: Toner C CRUM Data Broken Fault. The system detected that the data written to the Toner CRUM (C) and the data read from the Toner CRUM (C) do not match.
• Troubleshooting Guides: Remove and reinstall the Toner Cartridge (C) and check for improper installation. If no problems are found, replace the Toner Cartridge (C). Go to 393.962 Toner C CRUM Data Mismatch Fault

• Code: 393.960
• Description: Toner Y CRUM Data Mismatch Fail. Incorrect authentication area data was detected in the Yellow Toner CRUM. This fault is displayed if a different type of Toner cartridge is installed than what the printer is currently set to accept. The types of toner are: NA/XE, DMO, FX and Metered.
• Troubleshooting Guides: An Error Message appears on the UI – Reinsert an improperly seated consumable or replace any consumables with Error. Press Machine Status button and select Supplies tab for details. Remove and reinstall the Yellow Toner Cartridge and check for improper installation. The problem continues. Y↓ N→End Contact second level support to obtain a secure snippet to reset the printer to the neutral configuration. You will need the printer’s serial number and current print count. The snippet will be effective if installed within 500 prints of the current print count. After sending the snippet, the next toner cartridge installed will set the region code so make sure that the cartridge installed is the correct one for the region. Is the issue still present after sending the secure snippet? Y↓ N→End. 1. Polish the connection terminals between the Toner Cartridge (Y) CRUM PWB and the Toner CRUM Coupler Assembly (Y) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 2. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (Y) P/J120 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (Y) CRUM PWB and the Toner CRUM Coupler Assembly (Y) CRUM for damage and foreign substances • The Toner Cartridge (Y) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1) • MCU PWB

• Code: 393.961
• Description: Toner M CRUM Data Mismatch Fail. Incorrect authentication area data was detected in the Yellow Toner CRUM. This fault is displayed if a different type of Toner cartridge is installed than what the printer is currently set to accept. The types of toner are: NA/XE, DMO, FX and Metered.
• Troubleshooting Guides: An Error Message appears on the UI – Reinsert an improperly seated consumable or replace any consumables with Error. Press Machine Status button and select Supplies tab for details. Remove and reinstall the Magenta Toner Cartridge and check for improper installation. The problem continues. Y↓ N→End Contact second level support to obtain a secure snippet to reset the printer to the neutral configuration. You will need the printer’s serial number and current print count. The snippet will be effective if installed within 500 prints of the current print count. After sending the snippet, the next toner cartridge installed will set the region code so make sure that the cartridge installed is the correct one for the region. Is the issue still present after sending the secure snippet? Y↓ N→End. 1. Polish the connection terminals between the Toner Cartridge (M) CRUM PWB and the Toner CRUM Coupler Assembly (M) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 2. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (M) P/J121 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (M) CRUM PWB and the Toner CRUM Coupler Assembly (M) CRUM for damage and foreign substances • The Toner Cartridge (M) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1) • MCU PWB

• Code: 393.962
• Description: Toner C CRUM Data Mismatch Fail. Incorrect authentication area data was detected in the Yellow Toner CRUM. This fault is displayed if a different type of Toner cartridge is installed than what the printer is currently set to accept. The types of toner are: NA/XE, DMO, FX and Metered.
• Troubleshooting Guides: An Error Message appears on the UI – Reinsert an improperly seated consumable or replace any consumables with Error. Press Machine Status button and select Supplies tab for details. Remove and reinstall the Cyan Toner Cartridge and check for improper installation. The problem continues Y↓ N→End Contact second level support to obtain a secure snippet to reset the printer to the neutral configuration. You will need the printer’s serial number and current print count. The snippet will be effective if installed within 500 prints of the current print count. After sending the snippet, the next toner cartridge installed will set the region code so make sure that the cartridge installed is the correct one for the region. Is the issue still present after sending the secure snippet? Y↓ N→End. 1. Polish the connection terminals between the Toner Cartridge (C) CRUM PWB and the Toner CRUM Coupler Assembly (C) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 2. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (C) P/J122 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (C) CRUM PWB and the Toner CRUM Coupler Assembly (C) CRUM for damage and foreign substances • The Toner Cartridge (C) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1) • MCU PWB

• Code: 393.970
• Description: Toner Y CRUM Not In Position. The Toner CRUM (Y) is not in the proper position.
• Troubleshooting Guides: 1. Remove and reinstall the Toner Cartridge (Y). 2. Polish the connection terminals between the Toner Cartridge (Y) CRUM PWB and the Toner CRUM Coupler Assembly (Y) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 3. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (Y) P/J120 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (Y) CRUM PWB and the Toner CRUM Coupler Assembly (Y) CRUM for damage and foreign substances • The Toner Cartridge (Y) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (Y) • Toner CRUM Coupler Assembly (Y) (PL 5.1) • MCU PWB • Go to 393.960 Toner Y CRUM Data Mismatch Fail

• Code: 393.971
• Description: Toner M CRUM Not In Position. The Toner CRUM (M) is not in the proper position.
• Troubleshooting Guides: 1. Remove and reinstall the Toner Cartridge (M). 2. Polish the connection terminals between the Toner Cartridge (M) CRUM PWB and the Toner CRUM Coupler Assembly (M) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 3. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (M) P/J121 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (M) CRUM PWB and the Toner CRUM Coupler Assembly (M) CRUM for damage and foreign substances • The Toner Cartridge (M) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (M) • Toner CRUM Coupler Assembly (M) (PL 5.1) • MCU PWB • Go to 393.961 Toner M CRUM Data Mismatch Fail

• Code: 393.972
• Description: Toner C CRUM Not In Position. The Toner CRUM (C) is not in the proper position.
• Troubleshooting Guides: 1. Remove and reinstall the Toner Cartridge (C). 2. Polish the connection terminals between the Toner Cartridge (C) CRUM PWB and the Toner CRUM Coupler Assembly (C) CRUM with dry cloth. (When cleaning, do not use Drum cleaner, etc.) 3. Check the following: • The connection between the MCU PWB P/J411 and the Toner CRUM Coupler Assembly (C) P/J122 for open circuit, short circuit, and poor contact • The connection terminals between the Toner Cartridge (C) CRUM PWB and the Toner CRUM Coupler Assembly (C) CRUM for damage and foreign substances • The Toner Cartridge (C) for improper installation If no problems are found, replace the following parts in sequence: • Toner Cartridge (C) • Toner CRUM Coupler Assembly (C) (PL 5.1) • MCU PWB • Go to 393.962 Toner C CRUM Data Mismatch Fail

• Code: 394.300
• Description: IBT Front Cover Open. The Front Cover Open was detected by the IBT Front Cover Switch.
• Troubleshooting Guides: Check the following: • The Front Cover for damage or mismatch. • The IBT Front Cover Switch for failure: dc330 Component Control [077-307] (PL 18.5 Item 10) • The connection between the IBT Front Cover Switch P/J272 and the MCU PWB P/J416 for open circuit, short circuit, and poor contact If no problems are found, replace the MCU PWB.

• Code: 394.320
• Description: 1st BTR Contact/Retract Fault. After the 1st BTR Contact/Retract operation has started, it does not complete within the specified time.
• Troubleshooting Guides: Remove the 1st BTR Contact Retract Sensor Bracket. Turn the power On and enter Service Diag mode (Entering Service Diagnostics). Turn On dc330 Component Control [094-200]. Use a sheet of paper, etc. to block/clear the light path to the 1st BTR Contact Retract Sensor. Does the display change between High/Low? Y↓ N→Use Transmissive Sensor RAP to fix the 1st BTR Contact Retract Sensor. Press the Stop button and turn the power Off. Install the 1st BTR Contact Retract Sensor Bracket. Turn the power ON and enter Service Diag mode. Turn On dc330 Component Control [094- 012] (Contact) and DC330 [094-013] (Retract) alternately. Does it contact/retract? Y↓ N→Remove the IBT and check the following: • The IBT Assembly for mechanical loading or damage • The 1st BTR Contact Retract Gear for wear, damage, and operation failure • The 1st BTR Contact Retract Clutch for improper installation • The 1st BTR Contact Retract Sensor for improper installation • The connection between the 1st BTR Contact Retract Clutch P/J250 and the MCU PWB P/J417 for open circuit, short circuit, and poor contact If no problems are found, replace the 1st BTR Contact Retract Clutch (PL 3.2). Press the Stop button and turn the power Off. Replace the MCU PWB.

• Code: 394.323
• Description: 2nd BTR Contact/Retract Fault. After the 2nd BTR Contact/Retract operation has started, it does not complete within the specified time.
• Troubleshooting Guides: Turn the power On and enter the Diag mode. Turn On dc330 Component Control [094-201]. Move the Shielding Board of the 2nd BTR Contact Retract Sensor manually to block/clear the light path to the 2nd BTR Contact Retract Sensor. Does the display change between High/ Low? Y↓ N→Use Transmissive Sensor to fix the 2nd BTR Contact Retract Sensor. Press the Stop button. Turn On DC330 [094-003] (Contact) and DC330 [094-004] (Retract) alternately. Does it contact/retract? Y↓ N→Remove the IBT and check the following: • The 2nd BTR Contact Retract Gear for wear, damage, and revolution failure • The 2nd BTR Contact Retract Motor for improper installation • The 2nd BTR Contact Retract Sensor for improper installation • The connection between the 2nd BTR Contact Retract Motor P/J280 and the MD PWB P/J523 for open circuit, short circuit, and poor contact If no problems are found, replace the 2nd BTR Contact Retract Motor (PL 14.4). Press the Stop button and turn the power Off. Replace the following parts in sequence: • MD PWB • MCU PWB

• Code: 394.324
• Description: Belt Home Fail Too Long. 1. The engine senses that the IBT Belt Drive Motor is not turning. 2. Or, the MOB Sensor does not see RegiCon chevrons on the IBT Belt.
• Troubleshooting Guides: 1. Perform the following steps: • Check the IBT Belt Cleaner blade. If the blade is not adequately lubricated it can cause drag on the IBT Belt. The blade edge can be lubricated with waste toner from the Belt Cleaner assembly. • Check the IBT Belt Unit for mechanical loading and damage. • Perform the IBT Belt Motor test in Diagnostics. • If the belt is turning, perform a stall test while the printer is initializing and see if the RegiCon chevrons are printing on the belt. If the chevrons are printing and the IBT belt is moving. Examine the MOB Sensor for obstructions. • If the IBT Belt does not turn when the IBT Belt Motor test is performed in diagnostics, remove the IBT Belt Assembly and run the IBT Belt Motor test again in diagnostics. If the Motor does not turn, replace the following parts in sequence: – IBT Drive Motor Assembly – Motor Drive PWB • If the IBT Belt Motor runs when the IBT Belt Motor test is performed in diagnostics with the IBT Belt Assembly removed, diagnose and repair condition causing the belt assembly to bind. • Test the MOB shutter open/closed in diagnostics. If the shutter open/ closed test fails, replace the MOB ADC Assembly. NOTE: A temporary repair to allow the customer to use the printer if a MOB Sensor is not available and the shutter is not functioning correctly, is to remove the shutter from the MOB Assembly until a replacement assembly can be installed. 2. If no problems are found, replace the following parts in sequence: • IBT Belt Unit • MCU PWB

• Code: 394.417
• Description: IBT Unit Near End Warning. The IBT Assembly needs to be replaced soon.
• Troubleshooting Guides: Replace the IBT Assembly and clear dc135 CRU/HFSI Read & Reset [954-820] (IBT Unit).

• Code: 394.418
• Description: IBT CLN Unit Near End Warning. The IBT Cleaner needs to be replaced soon.
• Troubleshooting Guides: Replace the IBT Cleaner and clear dc135 CRU/HFSI Read & Reset [954-822] (IBT CLN Unit).

• Code: 394.419
• Description: 2nd BTR Unit Near End Warning. The 2nd BTR needs to be replaced soon.
• Troubleshooting Guides: Replace the 2nd BTR and clear dc135 CRU/HFSI Read & Reset [954-821] (2nd BTR Unit).

• Code: 394.420
• Description: IBT Unit End Warning. The IBT Assembly must be replaced.
• Troubleshooting Guides: Replace the IBT Assembly and clear dc135 CRU/HFSI Read & Reset [954-820] (IBT Unit).

– Get more information about Epson XP 15000 troubleshooting, click here

Xerox printer reset software introduction:

Notes before resetting Xerox printer:

– Identify accurate version, serial and crum of Xerox printer.
– How to get Xerox printer model info: Click Here
– Before you continue with the reprogramming of the firmware, please make sure that the device is installed on your computer.
– It is very important that under no circumstances should you remove the chip from the cartridge while reprogramming the firmware. After you have succesfully reprogrammed the printer, remove the chip from the cartridge and store it somewhere safely (the chip – a key). In all cartridges which you are going to use in the printer, the chip has to be either removed or sealed. If you have accidently inserted a new cartridge without removing the chip, the device will be blocked. In order to unblock it, you can use the stored chip as a key which help you to unblock the printer.
– And make sure that any other devices (except mouse and keyboard), which are connected to your computer via USB or LPT ports are disconnected. It’s preferable that the computer is connected to the “UPS” (uninterruptible power source) device, because if during the reprogramming process the electricity source has any interruptions, then the reprogramming will be carried out with an error, which makes the device unable to work.
– This firmware will be installed directly to your printer. Before opening firmare link make sure that printer is turned on and connected to your computer and printer drivers are installed correctly.
Be aware that with the reprogramming of the firmware the manufacturer’s warranty goes lost!!

How To Run Firmware Fix Xerox printer

1. Connect the printer to the computer and turn it on.
2. Wait until the printer is ready for work.
3. Drag and drop *.hd to usbprns2.exe file.

4. The reprogramming process starts automatically.
5. Wait until the printer reprograms (10-20 minute) and restarts.
6. After that the reprogramming process is finished, restart the printer.
– Fix Xerox B205 Toner Empty Error, click here

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