Epson AcuLaser C7000 list error codes with quick guides

Epson AcuLaser C7000 list error codes with quick guides

– Compatible Printer model: Epson AcuLaser C7000
– Epson AcuLaser C7000 Error Codes with quick guides:

• Code: 0017 … 0309
• Description: 0017 CPU error (Undefined interrupt occurrence) 0081 CPU error (TLB correction exception) *Only AcuLaser C7000 0082 CPU error (TLB miss exception [Load/Fetch]) *Only AcuLaser C7000 0083 CPU error (TLB miss exception [Store]) *Only AcuLaser C7000 0084 CPU error (Address error exception [Load/ Fetch]) *Only AcuLaser C7000 0085 CPU error (Address error exception [Store]) *Only AcuLaser C7000 0086 CPU error (Bus error exception [Fetch]) *Only AcuLaser C7000 0087 CPU error (Bus error exception [Load/Store]) *Only AcuLaser C7000 0088 CPU error (SYSCALL exception) 0089 CPU error (Break exception) 0090 CPU error (Reserve command exception) *Only AcuLaser C7000 0091 CPU error (Unused coprocessor exception) 0092 CPU error (FPU exception) *Only AcuLaser C7000 0093 CPU error (TLB exception) *Only AcuLaser C7000 0094 CPU error (XTLB exception) *Only AcuLaser C7000 0095 CPU error (Cache exception) *Only AcuLaser C7000 0096 CPU error (Trap exception) *Only AcuLaser C7000 0097 CPU Error (FPU exception) *Only AcuLaser C7000 0098 CPU error (Watch exception) *Only AcuLaser C7000 0128 ~ 0254 CPU error (Undefined trap) *Only AcuLaser C7000 0255 CPU error (NMI exception) *Only AcuLaser C7000 0256 CPU error (Divide by 0) *Only AcuLaser C7000 0257 CPU error (Computation overflow) *Only AcuLaser C7000 0258 CPU error (Break was generated) *Only AcuLaser C7000 0300 CPU error (Reserved (undefined) exception) *Only AcuLaser C8600 0301 CPU error (Machine check exception) *Only AcuLaser C8600 0302 CPU error (Data access exception) *Only AcuLaser C8600 0303 CPU error (Instruction access exception) *Only AcuLaser C8600 0304 CPU error (Alignment exception) *Only AcuLaser C8600 0305 CPU error *Only AcuLaser C8600 0306 CPU error (Trace exception) *Only AcuLaser C8600 0307 CPU error *Only AcuLaser C8600 0308 CPU error (System administration interrupt exception) *Only AcuLaser C8600 0309 CPU error (Temperature management interrupt exception) *Only AcuLaser C8600
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. • Reinsert the DIMM. Replace or reinstall the relevant part. Go to step 2 2 • Improving the CONTROLLER PWB Environment: • Update the program to the latest one in the DIMM.ÅB Replace or reinstall the relevant part. Go to step 3 3 • Replacing the CONTROLLER PWB and Performing Checks: Does the problem still occur after replacing the MCU PWB with a normal one? – Problem solved

• Code: 0800
• Description: IPL error (Controller defective)
• Troubleshooting Guides:

• Code: 0998
• Description: Engine communication error (Only when powering on)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: COMMUNICATION PWB,MCU PWB Replace or reinstall the relevant part. Go to step 2 2 Does the error occur when the power is turned ON? Go to step 3 Go to the relevant FIP when other errors/status codes occur. 3 Does the error occur when MCU PWB is replaced and the power is turned ON again? Go to FIP-2.33 “Noise” Problem solved

• Code: 0999
• Description: No Engine Flash ROM program data
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: COMMUNICATION PWB,MCU PWB Replace or reinstall the relevant part. Go to step 2 2 Does the error occur when the power is turned ON? Go to step 3 Go to the relevant FIP when other errors/status codes occur. 3 Does the error occur when MCU PWB is replaced and the power is turned ON again? Go to FIP-2.33 “Noise” Problem solved

• Code: 1002
• Description: Standard RAM error (When the standard size is not determined, etc.)
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the SD-RAM: • Remove all SD-RAMs from the RAM slots and then reinsert them in the RAM slots. Be sure to insert the SD-RAMs one by one (S0 and S1) in order so that the SD-RAM error can be identified. Every time you insert an SD-RAM, follow the procedures below and repeat it for each one. 1 Turn the power off. 2 Add the SD-RAM 3 Turn the power on. • Insert the SD-RAM in the socket until it is locked securely. NOTE: Since the SD-RAM has the right direction to insert, be sure to insert it in the correct direction. Replace or reinstall the relevant part. Problem solved

• Code: 1010
• Description: Verify error
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. • Reinsert the DIMM. Replace or reinstall the relevant part. Go to step 2 2 • Checking the DIMM: • After formatting the DIMM, load the control program to the DIMM. • Insert the DIMM in the socket P until it locks securely. NOTE: Since the DIMM has the right direction to insert, be sure to insert it in the correct direction. Replace or reinstall the relevant part. Problem solved

• Code: 1020, 1021
• Description: 1020 RAM error (Slot 0) 1021 RAM error (Slot 1)
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the SD-RAM: • Remove all SD-RAMs from the RAM slots and then reinsert them in the RAM slots. Be sure to insert the SD-RAMs one by one (S0 and S1) in order so that the SD-RAM error can be identified. Every time you insert an SD-RAM, follow the procedures below and repeat it for each one. 1 Turn the power off. 2 Add the SD-RAM 3 Turn the power on. • Insert the SD-RAM in the socket until it is locked securely. NOTE: Since the SD-RAM has the right direction to insert, be sure to insert it in the correct direction. Replace or reinstall the relevant part. Problem solved

• Code: 1100, 1101
• Description: 1100 ROM checksum error (bit 0 ~ 15) (Font) 1101 ROM checksum error (bit 16 ~ 31) (Font)
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Replace the CODE ROM (C309PROG). • Replace the mounted CODE ROM with another one for checking. Replace the CONTROLLER PWB. Go to step 3 3 • Replace the IC concerned. • “Error C1100” …Replace IC1 (M160B76JA) • “Error C1101”..Replace.IC2(M160B77JA) Replace or reinstall the relevant part. Problem solved

• Code: 1120 … 1123
• Description: 1120 ROM checksum error (bit 0 ~ 7) 1121 ROM checksum error (bit 8 ~ 15) 1122 ROM checksum error (bit 16 ~ 23) 1123 ROM checksum error (bit 24 ~ 31)
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • CODE ROM(C309PROG)ÇÃåšä² • Replace the mounted CODE ROM with another one for checking. Replace the CONTROLLER PWB. Go to step 3 3 • Clearing/updating the Program: • Clear the installed DIMM forcibly and update the program to the latest one in the DIMM. • Clear the new DIMM forcibly and update the program in the DIMM. Replace or reinstall the relevant part. Problem solved

• Code: 113
• Description: Fuser Unit malfunction (No Fuser Unit)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY, FUSER CONNECTOR Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking for proper mounting of FUSER ASSY: Is the FUSER ASSY properly mounted? • Check by removing and reinstalling the FUSER ASSY. • With the tool: Go to step 4 • Without the tool: Go to step 5 Replace the faulty part(s). 4 • Checking the FUSER ASSY detection circuit: Is the FUSER ASSY detection circuit functioning properly? . By using the diagnostics commander, check by Digital Input Test device code ‘4B’. Go to step 5 Replace the MCU PWB-XL 5 • Checking the power supply to FUSER ASSY detection circuit: Is the voltage 5 VDC between P19B-5PIN . P19B-6PIN? Go to step 6 Replace the MCU PWB-XL 6 • Checking the FUSER ASSY detection signal Is the voltage between P/J19A-8PIN . P/J19A- 7PIN 0 VDC with the FUSER ASSY installed and 5 VDC without FUSER ASSY? Replace the MCU PWB-XL Go to step 7 7 • Checking for continuity of FUSER HARNESS ASSY Is there normal continuity between J71A . J78? Go to step 8 Replace the FUSER HARNESS ASSY 8 • Checking continuity of FUSER CONNECTOR Is there normal continuity between P71 . J19? Go to step 9 Replace the FUSER CONNECTOR 9 • Replacing the FUSER ASSY and Performing Checks Replace the FUSER ASSY. Is the problem solved? Problem solved Replace the MCU PWB-XL

• Code: 1180 … 1185
• Description: 1180 Optional ROM module A checksum error *Only AcuLaser C8600 1181 Optional ROM module B checksum error *Only AcuLaser C8600 1185 Unsupported ROM module *Only AcuLaser C8600
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the DIMM: • Insert the DIMM in the socket until it is locked securely. NOTE: Since the DIMM has the right direction and location for insertion, be sure to insert it in the correct direction and location. • Check if the DIMM is available for this printer, AcuLaser C8600. In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1200, 1210
• Description: 1200 EEPROM write error 1210 EEPROM write count limit
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the EEPROM: • “Error C1200”… Execute “SelecType Init” in the Panel Setting, or replace EEPROM. • “Error C1210”…Replace EEPROM. In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1400
• Description: Engine initialization malfunction
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Initializing the MCU PWB: • By using the DIAG command, execute “Slave Initialize”. Turn the power off once and on again. Does the printer operate normally? Problem solved Go to step 3 3 • Replacing the relevant unit: • Replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1500
• Description: CCNV hardware error
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Replacing the IC concerned: • Replace IC603 for AcuLaser C8600 or IC600 for AcuLaser C7000 (VIPS: E05B93BA) • Replace IC602 for AcuLaser C8600 or IC601 for AcuLaser C7000 In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1550
• Description: Compression SRAM initialization hardware error
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the SD-RAM: • Remove all SD-RAMs from the RAM slots and then reinsert them in the RAM slots. Be sure to insert the SD-RAMs one by one (S0 and S1) in order so that the SD-RAM error can be identified. Every time you insert an SD-RAM, follow the procedures below and repeat it for each one. 1 Turn the power off. 2 Add the SD-RAM. 3 Turn the power on. • Insert the SD-RAM in the socket until it is locked securely. NOTE: Since the SD-RAM has the right direction to insert, be sure to insert it in the correct direction. Replace or reinstall the relevant part. Go to step 3 3 • Replacing the IC concerned: • Replace IC603 for AcuLaser C8600 or IC600 for AcuLaser C7000 (VIPS: E05B93BA) • Replace IC602 for AcuLaser C8600 or IC601 for AcuLaser C7000 In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1600
• Description: Video related hardware error (including PWM IC calibration error)
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Replacing the IC concerned: • Replace IC603 for AcuLaser C8600 or IC600 for AcuLaser C7000 (VIPS: E05B93BA) • Replace IC602 for AcuLaser C8600 or IC601 for AcuLaser C7000 In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1999
• Description: Other hardware error
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Initializing the MCU PWB: • By using the DIAG command, execute “Slave Initialize”. Turn the power off once and on again. Does the printer operate normally? Problem solved Go to step 3 3 • Replacing the relevant unit: • Replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 2000
• Description: Software error
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Initializing the MCU PWB: • By using the DIAG command, execute “Slave Initialize”. Turn the power off once and on again. Does the printer operate normally? Problem solved Go to step 3 3 • Replacing the relevant unit: • Replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 510
• Description: ROS motor malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: ROS ASSY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller.(If an error still occurs after replacing, Go to FIP-2.15 “Faulty ROS ASSY” ) Go to FIP-2.15 “Faulty ROS ASSY”

• Code: 511
• Description: Motor 1 malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: P/R MOT&DRV ASSY, TRANSFER HIGH ASSY TR0 SENSOR, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the Process Motor operation: When the test print is conducted, does the Process Motor operate? Go to step 9 Go to step 4 4 • Checking the P/R MOT&DRV ASSY for foreign matters: Is the operation of the PROCESS DRIVE ASSY blocked by foreign matters? Remove the foreign matters. • With the tool: Go to step 5 • Without the tool: Go to step 6 5 • Checking the P/R MOT&DRV ASSY Does the P/R MOT&DRV ASSY function properly? . By using the diagnostics commander, check by Digital Output Test device code ’72’. Replace the MCU PWB-XL Go to FIP-2.28 “Faulty P/R MOT & DRV ASSY” 6 • Checking the installation of P/R MOT&DRV ASSY: Has the P/R MOT&DRV ASSY been installed properly? Go to step 7 Reinstall the P/R MOT & DRV ASSY 7 • Checking the installation of TRANSFER HIGH ASSY: Has the TRANSFER HIGH ASSY been installed properly? Go to step 8 Reinstall the TRANSFER HIGH ASSY 8 • Checking the P/R MOT&DRV ASSY Does the output shaft of the P/R MOT&DRV ASSY turn smoothly when the rotor of the P/R MOT&DRV ASSY is turned by hand? Go to step 9 Replace the P/R MOT & DRV ASSY 9 • Checking the installation of TR0 SENSOR: Has the TR0 SENSOR been installed properly? • With the tool: Go to step 8 • Without the tool: Go to FIP-2.21 “Faulty TR0 SENSOR” Reinstall the TR0 SENSOR 10 • Checking the TR0 SENSOR Does the TR0 SENSOR function properly? . By using the diagnostics commander, check by Digital Input Test device code ’42’. Replace the MCU PWB-XL Go to FIP-2.21 “Faulty TR0 SENSOR”

• Code: 512
• Description: P/H Motor malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: P/H MOTOR ASSY, FEED ROLL ASSY, MAIN P/H FRAME ASSY, WASTE TONER BOX, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.) Go to step 3 3 • Checking the P/H Motor operation: When the test print is conducted, does the P/H Motor slightly operate and stop? Go to step 5 Go to step 4 4 • Checking the P/H Motor operation: When the test print is conducted, does the P/H Motor remain in stoppage? Go to FIP-2.29 “Faulty P/H MOTOR ASSY” Go to step 5 5 • Checking drive transmission: Does the rotor of the P/H MOTOR ASSY turn smoothly? • Check by turning the rotor of the P/H MOTOR ASSY counterclockwise with your hand. Go to step 6 Replace the faulty part(s). 6 • Checking the MAIN P/H FRAME ASSY: Does the MAIN P/H FRAME ASSY operate smoothly? Go to step 7 Replace the faulty part(s). 7 • Checking the WASTE TONER BOX: Does the rotor of the P/H MOTOR ASSY turn smoothly when the WASTE TONER BOX is removed? • Check by turning the rotor of the P/H MOTOR ASSY counterclockwise with your hand. Go to step 8 Replace the WASTE TONER BOX 8 • Checking the FEED ROLL ASSY: Does the FEED ROLL ASSY turn smoothly? • Depress the FEED SOLENOID armature and engage the gears and then check by turning the rotor of the P/H MOTOR ASSY counterclockwise with your hand. Go to FIP-2.29 “Faulty P/H MOTOR ASSY” Replace the faulty part(s).

• Code: 513
• Description: NVRAM malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: COMMUNICATION PWB,MCU PWB Replace or reinstall the relevant part. Go to step 2 2 Does the error occur when the power is turned ON? Go to step 3 Go to the relevant FIP when other errors/status codes occur. 3 Does the error occur when MCU PWB is replaced and the power is turned ON again? Go to FIP-2.33 “Noise” Problem solved

• Code: 516
• Description: Duplex Unit malfunction (Communication)
• Troubleshooting Guides: Duplex Print Unit other than this printer’s option is installed

• Code: 517
• Description: Optional single/double cassette malfunction
• Troubleshooting Guides: 2/1 Optional Cassette Unit error, or 2/1 Optional Cassette Unit other than this printer’s option is installed

• Code: 520
• Description: 2nd BTR malfunction (Advance)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: BTR CAM CLUTCH, PRO DRIVE GEAR ASSY BTR WHEEL SENSOR, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the PRO Motor: Does the PRO Motor function properly? . By using the diagnostics commander, check by Digital Output Test device code ’54’. Go to step 5 Go to step 4 4 • Checking the installation of PRO DRIVE GEAR ASSY: Has the PRO DRIVE GEAR ASSY been installed properly? • With the tool: Go to step 5 • Without the tool: Go to step 6 Reinstall the PRO DRIVE GEAR ASSY 5 • Checking the P/R MOT&DRV ASSY: Does the P/R MOT&DRV ASSY function properly? . By using the diagnostics commander, check by Digital Output Test device code ’54’. Go to step 8 Go to FIP-2.28 “Faulty P/R MOT & DRV ASSY” 6 • Checking the installation of 2ND BTR ASSY: Has the 2ND BTR ASSY been installed properly? Go to step 7 Reinstall the 2ND BTR ASSY 7 • Checking the installation of BTR WHEEL SENSOR: Has the BTR WHEEL SENSOR been installed properly? Go to FIP-2.22 “Faulty BTR CAM CLUTCH” Reinstall the BTR WHEEL SENSOR 8 • Checking the BTR WHEEL SENSOR: Does the BTR WHEEL SENSOR function properly? . By using the diagnostics commander, check by Digital Input Test device code ’76’. Replace the MCU PWB-XL Replace the BTR WHEEL SENSOR 9 • Checking the BTR CAM CLUTCH: Does the BTR CAM CLUTCH function correctly? . By using the diagnostics commander, check by Digital Output Test device code ’70’. Replace the MCU PWB-XL Go to FIP-2.22 “Faulty BTR CAM CLUTCH”

• Code: 521
• Description: 2nd BTR malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: 2ND BTR, BTR CAM CLUTCH, MCU PWB TRANSFER HIGH ASSY Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking retraction During the test printing, does the 2ND BTR ASSY retract? • Check the operation of the BTR CAM CLUTCH from the rear side. Go to step 9 • With the tool: Go to step 4 • Without the tool: Go to step 5 4 • Checking the BTR CAM CLUTCH: Does the BTR CAM CLUTCH function correctly? . By using the diagnostics commander, check by Digital Output Test device code ’27’. Go to step 9 Go to FIP-2.22 “Faulty BTR CAM CLUTCH” 5 • Checking the installation of BTR CAM CLUTCH: Has the BTR CAM CLUTCH been installed properly? Go to step 6 Reinstall the BTR CAM CLUTCH 6 • Checking the shape of BTR CAM ASSY: Is the BTR CAM ASSY bent or deformed? Replace the 2ND BTR CAM ASSY Go to step 7 7 • Checking the installation of 2ND BTR ASSY: Has the 2ND BTR ASSY been installed properly? Go to step 8 Reinstall the 2ND BTR ASSY 8 • Checking the installation of TRANSFER ASSY: Has the TRANFER ASSY been installed properly? Go to step 9 Reinstall the TRANSFER ASSY 9 • Replacing the MCU PWB and Performing Checks: Replace the MCU PWB. Is the problem solved? Problem solved Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY”

• Code: 523
• Description: PCDC malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Replacing the MCU PWB and Performing Checks: Replace the MCU PWB. Is the problem solved? Problem solved Go to FIP-2.33 “Noise”

• Code: 524
• Description: Toner density malfunction (Low density)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: DISPENSE MOTOR ASSY, DEVE. CONTACT PLATE ASSY Developer Assy, MAIN HARNESS ASSY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the Drum surface image: Are the various toner images developed properly on the Drum surface? • Turn the power OFF while you think there is an image being transferred in the course of printing, and visually inspect Cin50% patch on the Drum surface. Go to step 8 Go to step 4 4 • Checking the Drum surface picture image: Are all the colors of the various toner images on the Drum surface thin? • Turn the power OFF while you think there is an image being transferred in the course of printing, and visually inspect Cin50% patch on the Drum surface. Go to step 5 Go to step 11 5 • Checking the installation of Dispense Motor: Has the Dispense Motor been installed properly? • With the tool: Go to step 6 • Without the tool: Go to FIP-2.31 “Faulty the DISPENSE MOTOR ASSY” • If problem is not solved, go to step 7 Reinstall the DISPENSE MOTOR ASSY 6 • Checking the Dispense Motor: Does the Dispense Motor function properly? . By using the diagnostics commander, check by Digital Output Test device code ’56’. Go to step 7 Go to FIP-2.31 “Faulty the DISPENSE MOTOR ASSY” 7 • Checking the DEVE. CONTACT PLATE ASSY: Is the contact surface of the DEVE. CONTACT ASSY distorted? Or are there foreign matters on the contact surface of the DEVE. CONTACT ASSY? Replace the DEVE. CONTACT ASSY Go to step 8 8 • Checking the ADC Sensor surface: Is there dirt or any foreign matter adhering to the surface of the ADC Sensor? Remove dirt/ foreign matters. • With the tool: Go to step 9 • Without the tool: Go to FIP-2.16 “Faulty ADC Sensor” , FIP-2.17 “Faulty ADC Solenoid” 9 • Checking the ADC Sensor: Does the ADC Sensor function properly? . By using the diagnostics commander, check by Digital Output Test device code ’72’. Go to step 11 Go to FIP-2.16 “Faulty ADC Sensor” 10 • Checking the ADC Solenoid: Does the ADC Solenoid function properly? . By using the diagnostics commander, check by Digital Output Test device code ’67’. Go to step 11 Go to FIP-2.17 “Faulty ADC Solenoid” 11 • Replacing the Developer Assy and Performing Checks: Replace the Developer Assy with a new one for the color concerned. Does the problem still occur? Replace the MCU PWB-XL Problem solved

• Code: 525
• Description: Toner density malfunction (High density)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: DEVE.CONTACT PLATE ASSY, ADC SENSOR ASSY MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the DEVE. CONTACT PLATE ASSY Is the contact surface of the DEVE. CONTACT ASSY distorted? Or are there foreign matters on the contact surface of the DEVE. CONTACT ASSY? Replace the DEVE.CONTACT PLATE ASSY Go to step 4 4 • Checking the ADC Sensor surface: Is there dirt or any foreign matter adhering to the surface of the ADC Sensor? Remove dirt/foreign matters. • With the tool: Go to step 5 • Without the tool: Go to FIP-2.16 “Faulty ADC Sensor” FIP-2.17 “Faulty ADC Solenoid” 5 • Checking the ADC Sensor: Does the ADC Sensor function properly? . By using the diagnostics commander, check by Digital Output Test device code ’72’. Go to step 6 Go to FIP-2.16 “Faulty ADC Sensor” 6 • Checking the ADC Solenoid: Does the ADC Solenoid function properly? . By using the diagnostics commander, check by Digital Output Test device code ’67’. Go to step 7 Go to FIP-2.17 “Faulty ADC Solenoid” 7 • Replacing the MCU PWB and Performing Checks: Replace the MCU PWB. Is the problem solved? Problem solved Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY”

• Code: 526
• Description: ADC sensor soiled
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: ADC SENSOR ASSY, MAIN HARNESS ASSY MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the ADC Sensor surface: Is there dirt or any foreign matter adhering to the surface of the ADC Sensor? Remove dirt/foreign matters. • With the tool: Go to step 4 • Without the tool: Go to step 6 4 • Checking the ADC Sensor: Does the ADC Sensor function properly? . By using the diagnostics commander, check by Digital Output Test device code ’72’. Go to step 5 Go to FIP-2.16 “Faulty ADC Sensor” 5 • Checking the ADC Solenoid: Does the ADC Solenoid function properly? . By using the diagnostics commander, check by Digital Output Test device code ’67’. Go to step 7 Go to FIP-2.17 “Faulty ADC Solenoid” 6 • Checking the installation of ADC SENSOR ASSY: Has the ADC SENSOR ASSY been installed properly? Go to step 7 Reinstall the ADC SENSOR ASSY 7 • Replacing the MCU PWB and Performing Checks: Replace the MCU PWB. Is the problem solved? Problem solved Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY”

• Code: 527
• Description: Deve home position sensor malfunction
• Troubleshooting Guides:

• Code: 530
• Description: Environment (humidity)sensor malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: ENVIRONMENT SENSOR, P/H HARNESS ASSY, MCU PWB Replace or reinstall the relevant part. • With the tool: Go to step 2 or 3 • Without the tool: Go to step 4 or 5 2 • Checking the TEMP SENSOR: Does the TEMP SENSOR function properly? . By using the diagnostics commander, check by Analog Input Test device code ’04’. Go to step 6 Replace the ENVIRONMENT SENSOR 3 • Checking the Humidity SENSOR: Does the Humidity SENSOR function properly? . By using the diagnostics commander, check by Analog Input Test device code ’06’. Go to step 6 Replace the ENVIRONMENT SENSOR 4 • Checking the thermistor resistance of ENVIRONMENT SENSOR: Is the resistance between P/J105-1PIN . P/J105- 4PIN approx. 5 kO at room temperature (18~20°C)? Go to step 5 Replace the ENVIRONMENT SENSOR 5 • Checking the voltage of ENVIRONMENT SENSOR: Is the voltage between P/J23-5PIN . P/J23-4PIN on the MCU PWB in the range of about 0.1-4.0 VDC? Replace the MCU PWB-XL Replace the ENVIRONMENT SENSOR 6 • Checking for continuity of P/H HARNESS ASSY: Is there normal continuity between J23 . J105? Replace the MCU PWB-XL Replace the P/H HARNESS ASSY

• Code: 531
• Description: PR Motor malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: P/R MOT&DRV ASSY, TRANSFER HIGH ASSY TR0 SENSOR, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the Process Motor operation: When the test print is conducted, does the Process Motor operate? Go to step 9 Go to step 4 4 • Checking the P/R MOT&DRV ASSY for foreign matters: Is the operation of the PROCESS DRIVE ASSY blocked by foreign matters? Remove the foreign matters. • With the tool: Go to step 5 • Without the tool: Go to step 6 5 • Checking the P/R MOT&DRV ASSY Does the P/R MOT&DRV ASSY function properly? . By using the diagnostics commander, check by Digital Output Test device code ’72’. Replace the MCU PWB-XL Go to FIP-2.28 “Faulty P/R MOT & DRV ASSY” 6 • Checking the installation of P/R MOT&DRV ASSY: Has the P/R MOT&DRV ASSY been installed properly? Go to step 7 Reinstall the P/R MOT & DRV ASSY 7 • Checking the installation of TRANSFER HIGH ASSY: Has the TRANSFER HIGH ASSY been installed properly? Go to step 8 Reinstall the TRANSFER HIGH ASSY 8 • Checking the P/R MOT&DRV ASSY Does the output shaft of the P/R MOT&DRV ASSY turn smoothly when the rotor of the P/R MOT&DRV ASSY is turned by hand? Go to step 9 Replace the P/R MOT & DRV ASSY 9 • Checking the installation of TR0 SENSOR: Has the TR0 SENSOR been installed properly? • With the tool: Go to step 8 • Without the tool: Go to FIP-2.21 “Faulty TR0 SENSOR” Reinstall the TR0 SENSOR 10 • Checking the TR0 SENSOR Does the TR0 SENSOR function properly? . By using the diagnostics commander, check by Digital Input Test device code ’42’. Replace the MCU PWB-XL Go to FIP-2.21 “Faulty TR0 SENSOR”

• Code: 532
• Description: P/H Motor2 malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: P/H MOTOR ASSY, FEED ROLL ASSY, MAIN P/H FRAME ASSY, WASTE TONER BOX, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.) Go to step 3 3 • Checking the P/H Motor operation: When the test print is conducted, does the P/H Motor slightly operate and stop? Go to step 5 Go to step 4 4 • Checking the P/H Motor operation: When the test print is conducted, does the P/H Motor remain in stoppage? Go to FIP-2.29 “Faulty P/H MOTOR ASSY” Go to step 5 5 • Checking drive transmission: Does the rotor of the P/H MOTOR ASSY turn smoothly? • Check by turning the rotor of the P/H MOTOR ASSY counterclockwise with your hand. Go to step 6 Replace the faulty part(s). 6 • Checking the MAIN P/H FRAME ASSY: Does the MAIN P/H FRAME ASSY operate smoothly? Go to step 7 Replace the faulty part(s). 7 • Checking the WASTE TONER BOX: Does the rotor of the P/H MOTOR ASSY turn smoothly when the WASTE TONER BOX is removed? • Check by turning the rotor of the P/H MOTOR ASSY counterclockwise with your hand. Go to step 8 Replace the WASTE TONER BOX 8 • Checking the FEED ROLL ASSY: Does the FEED ROLL ASSY turn smoothly? • Depress the FEED SOLENOID armature and engage the gears and then check by turning the rotor of the P/H MOTOR ASSY counterclockwise with your hand. Go to FIP-2.29 “Faulty P/H MOTOR ASSY” Replace the faulty part(s).

• Code: 533
• Description: Thermosensor malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER CONNECTOR, TEMP. SENSOR ASSY, H/R HEATER P/R HEATER, FUSER ASSY, MAIN HARNESS ASSY MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • FUSER CONNECTOR Is the FUSER CONNECTOR securely connected when the FUSER ASSY is mounted? Go to step 4 Check the FUSER CONNECTOR 4 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 5 5 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 6 Replace the H/R HEATER , P/R HEATER 6 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 7 7 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 8 Replace the MAIN HARNESS ASSY 8 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 9 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 9 • Checking the HETER ROD ON signal: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5.5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL

• Code: 534
• Description: Fuser Unit malfunction (Low Temperature)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY FUSER CONNECTOR, FUSER ASSY, TEMP. SENSOR ASSY H/R HEATER, P/R HEATER, LV/HV POWER SUPPLY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 4 4 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 5 Replace the H/R HEATER , P/R HEATER 5 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 6 6 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 7 Replace the MAIN HARNESS ASSY 7 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 8 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 8 • Checking the ON signal of HEATER ROD: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL

• Code: 535
• Description: Fuser Unit malfunction (Lamp)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY FUSER CONNECTOR, FUSER ASSY, TEMP. SENSOR ASSY H/R HEATER, P/R HEATER, LV/HV POWER SUPPLY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 4 4 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 5 Replace the H/R HEATER , P/R HEATER 5 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 6 6 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 7 Replace the MAIN HARNESS ASSY 7 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 8 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 8 • Checking the ON signal of HEATER ROD: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL

• Code: 536
• Description: Fuser Unit malfunction (Time out)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY FUSER CONNECTOR, FUSER ASSY, TEMP. SENSOR ASSY H/R HEATER, P/R HEATER, LV/HV POWER SUPPLY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 4 4 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 5 Replace the H/R HEATER , P/R HEATER 5 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 6 6 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 7 Replace the MAIN HARNESS ASSY 7 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 8 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 8 • Checking the ON signal of HEATER ROD: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL

• Code: 537
• Description: Fuser Unit malfunction (Overheat)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER CONNECTOR, TEMP. SENSOR ASSY, H/R HEATER P/R HEATER, FUSER ASSY, MAIN HARNESS ASSY MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • FUSER CONNECTOR Is the FUSER CONNECTOR securely connected when the FUSER ASSY is mounted? Go to step 4 Check the FUSER CONNECTOR 4 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 5 5 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 6 Replace the H/R HEATER , P/R HEATER 6 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 7 7 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 8 Replace the MAIN HARNESS ASSY 8 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 9 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 9 • Checking the HETER ROD ON signal: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5.5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL

• Code: 543
• Description: Rear fan malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: DEVE. FAN, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the DEVE. FAN: Does the DEVE. FAN function properly? . By using the diagnostics commander, check by Digital Output Test device code ’60’. Replace the MCU PWB-XL Go to step 4 4 • Checking the installation of DEVE. FAN: Has the DEVE. FAN been installed properly? Go to step 5 Reinstall the DEVE. FAN 5 • Checking the Main Harness: Is there breakage or faulty contact in the harness between the MCU PWB and the DEVE. FAN? Replace the MCU PWB-XL or DEVE. FAN Replace the DEVE. FAN

• Code: 544
• Description: Fuser Unit fan 2 malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER CHUTE FAN, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the FUSER CHUTE FAN: Does the FUSER CHUTE FAN function properly? . By using the diagnostics commander, check by Digital Output Test device code ’64’. Replace the MCU PWB-XL Go to step 4 4 • Checking the installation of FUSER CHUTE FAN: Has the FUSER CHUTE FAN been installed properly? Go to step 5 Reinstall the FUSER CHUTE FAN 5 • Checking the Main Harness: Is there breakage or faulty contact in the harness between the MCU PWB and the FUSER CHUTE FAN? Replace the MCU PWB-XL or FUSER CHUTE FAN Replace the FUSER CHUTE FAN

• Code: 545
• Description: Fuser Unit fan 1 malfunction
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER FAN-1, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the FUSER FAN-1: Does the FUSER FAN-1 function properly? . By using the diagnostics commander, check by Digital Output Test device code ’63’. Replace the MCU PWB-XL Go to step 4 4 • Checking the installation of FUSER FAN-1: Has the FUSER FAN-1 been installed properly? Go to step 5 Reinstall the FUSER FAN-1 5 • Checking the Main Harness: Is there breakage or faulty contact in the harness between the MCU PWB and the FUSER FAN-1? Replace the MCU PWB-XL or FUSER FAN-1 Replace the FUSER FAN-1

Solve Epson AcuLaser C7000 Error codes

• Code: 546
• Description: Duplex Unit motor malfunction
• Troubleshooting Guides:

• Code: 547
• Description: Optional single/double cassette unit feeder motor malfunction
• Troubleshooting Guides:

• Code: 620
• Description: K Deve service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 621
• Description: C Deve service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 622
• Description: M Deve service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 623
• Description: Y Deve service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 624
• Description: IBT service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 626
• Description: 2nd BTR service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 627
• Description: IBT cleaner service life
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

• Code: 830
• Description: Optional double cassette unit LC3 malfunction
• Troubleshooting Guides:

• Code: 831
• Description: Optional single/double cassette unit LC2 malfunction
• Troubleshooting Guides:

• Code: 832
• Description: MP tray malfunction (lift down)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: LIFT MOTOR ASSY, LEVEL SENSOR, MCU PWB P/H HARNESS ASSY, MSI HARNESS ASSY Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4] • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the LIFT MOTOR ASSY: Does the LIFT MOTOR ASSY function properly? . By using the diagnostics commander, check by Digital Output Test device code ‘2D, 2E’. Go to step 6 Go to step 4 4 • Checking for continuity of REGI HARNESS ASSY: Is there normal continuity between J91B . J208? Go to step 5 Replace the REGI HARNESS ASSY. 5 • Checking for continuity of P/H HARNESS ASSY: Is there normal continuity between J20B . J91B? • With the tool: Go to step 6 • Without the tool: Go to step 7 Replace the P/H HARNESS ASSY. 6 • Checking the LEVEL SENSOR: Does the LEVEL SENSOR function properly? . By using the diagnostics commander, check by Digital Input Test device code ‘2C’. Replace the MCU PWB-XL Go to step 7 7 • Checking for continuity of MSI HARNESS ASSY: Is there normal continuity between J201 . J209? Go to step 8 Replace the MSI HARNESS ASSY. 8 • Checking for continuity of P/H HARNESS ASSY: Is there normal continuity between J20A . J91A? Replace the MCU PWB-XL or LIFT MOTOR ASSY LEVEL SENSOR Replace the P/H HARNESS ASSY.

• Code: 833
• Description: MP tray malfunction (lift up)
• Troubleshooting Guides: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: LIFT MOTOR ASSY, LEVEL SENSOR, MCU PWB P/H HARNESS ASSY, MSI HARNESS ASSY Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4] • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the LIFT MOTOR ASSY: Does the LIFT MOTOR ASSY function properly? . By using the diagnostics commander, check by Digital Output Test device code ‘2D, 2E’. Go to step 6 Go to step 4 4 • Checking for continuity of REGI HARNESS ASSY: Is there normal continuity between J91B . J208? Go to step 5 Replace the REGI HARNESS ASSY. 5 • Checking for continuity of P/H HARNESS ASSY: Is there normal continuity between J20B . J91B? • With the tool: Go to step 6 • Without the tool: Go to step 7 Replace the P/H HARNESS ASSY. 6 • Checking the LEVEL SENSOR: Does the LEVEL SENSOR function properly? . By using the diagnostics commander, check by Digital Input Test device code ‘2C’. Replace the MCU PWB-XL Go to step 7 7 • Checking for continuity of MSI HARNESS ASSY: Is there normal continuity between J201 . J209? Go to step 8 Replace the MSI HARNESS ASSY. 8 • Checking for continuity of P/H HARNESS ASSY: Is there normal continuity between J20A . J91A? Replace the MCU PWB-XL or LIFT MOTOR ASSY LEVEL SENSOR Replace the P/H HARNESS ASSY.

• Code: 998
• Description: Engine communication error
• Troubleshooting Guides: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. • Reinsert the DIMM. Replace or reinstall the relevant part. Go to step 2 2 • Improving the CONTROLLER PWB Environment: • Update the program to the latest one in the DIMM.ÅB Replace or reinstall the relevant part. Go to step 3 3 • Replacing the CONTROLLER PWB and Performing Checks: Does the problem still occur after replacing the MCU PWB with a normal one? – Problem solved

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