OKI ES9476MFP Error Codes list and solutions

– Compatible Printer model: OKI ES9476MFP
– OKI ES9476MFP Error Code description:

Code: C020
Description: Developer drive motor abnormality
Causes: Developer drive motor abnormality: The developer drive motor is not rotating normally.
Troubleshooting Guides: Developer unit • Check if the developer material is caked. • Check if there is any abnormality in the row of gears on the rear side of the developer unit. • Check if the amount of developer material is proper.
Development drive unit/Paper feeding drive unit • Check if there is any foreign matter between the gears. • Check if there is any damage on the gear tooth surface. • Check if there is any scratch on the caliber or the shaft of each gear. • Check if the proper amount of grease is applied to the caliber or the shaft of each gear. • Check if there is any damage to the developer drive output coupling.
Paper feeding/developer unit drive motor • Check that the motor is rotated normally. (FS-03-112/162) • Connector check • Harness check
Drum TBU drive unit • Check if there is any foreign matter in the row of the color developer drive gears. • Check if there is any damage on the tooth surface of the color developer drive gears. • Check if there is any scratch on the caliber or the shaft of each color developer drive gear. • Check if the proper amount of grease is applied to the caliber or the shaft of each color developer drive gear. • Check if there is any damage to the developer drive output coupling.
LGC board • Board check • Connector check (CN327) • Harness check
1st/2nd drawer feed roller • Check if the 1st drawer feed roller is overloaded. • Check if there is any damage to the roller coupling.
Bypass unit • Check if the bypass feed roller is overloaded. • Check if there is any damage to the row of the bypass unit gears.
Paper feeding drive section • Check if there is any foreign matter between the gears. • Check if there is any damage on the gear tooth surface. • Check if there is any scratch on the caliber or the shaft of each gear.
Transport roller • Check if the PFU transport roller is overloaded.

Code: C040
Description: PFP motor abnormality
Causes: Paper feeding system related service call
Troubleshooting Guides: 1 Is the PFP motor working? (Perform the output check: FS-03-109/159) Yes 2 No • Check if the connector J952 of the PFP motor is disconnected. • Check if the connector CN245 on the PFP board is disconnected. • Check if the connector CN241 on the PFP board is • Check if the connector CN459 on the PFC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP motor board, PFP board and PFC board are short circuited or open circuited.
2 Is the LED on the PFP motor board lit without flashing? Yes 3 No • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP motor board, PFP board and PFC board are short circuited or open circuited.
3 PFP board • Check if the PLL lock signal CN945-7 pin output from the PFP board is always “L” level. • Check if the voltage supplied to the microcomputer input terminal IC5-17 pin is always “L” level.
4 PFC board • Board check • Connector check (CN459, J700) • Harness check

Code: C130, C140
Description: [C130] 1st drawer tray abnormality
[C140] 2nd drawer tray abnormality
Causes: [C130] 1st drawer tray abnormality
[C140] 2nd drawer tray abnormality
Troubleshooting Guides: 1 Does the tray go up? (Perform the output check: FS-03-242, FS-03-243) Yes 2 No • Check if the connector of the tray-up motor- 1 is disconnected (CN460, J667). • Check if the connector of the tray-up motor- 2 is disconnected (CN460, J677). • Check if the connector on the PFC board is disconnected. (CN452, CN460) • Check if the connector on the LGC board is disconnected (CN323). • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited.
2 Is the tray-up sensor working? (Perform the input check: FS-03- [ALL]OFF/[0]/[E], FS-03- [F3]ON/[4]/[E]) Yes 3 No • Check if the connector of the 1st drawer tray-up sensor is disconnected (CN457, J673, J675). • Check if the connector of the 2nd drawer tray-up sensor is disconnected (CN457, J683, J685). • Check if the connector on the PFC board is disconnected. (CN452, CN457) • Check if the connector on the LGC board is disconnected (CN323). • Check if the slit reaches the sensor. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited.
3 PFC board • Check if the conductor pattern on the PFC board is short circuited or open circuited.
4 LGC board • Check if the conductor pattern on the LGC board is short circuited or open circuited.

Code: C150, C160
Description: [C150] PFP upper drawer tray abnormality
[C160] PFP lower drawer tray abnormality
Causes: Paper feeding system related service call PFP upper drawer tray abnormality PFP lower drawer tray abnormality
Troubleshooting Guides: 1 Does the tray go up? (Perform the output check: FS-03-278, FS-03-280) Yes 2 No • Check if the connector of the tray-up motor is disconnected. (J967, J961, CN244) • Check if any of the connectors CN241 and CN244 on the PFP board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP board and PFC board are short circuited or open circuited.
2 Is the tray-up sensor working? (Perform the input check: FS-03- [F1]ON/[5]/[A], FS-03- [F1]ON/[5]/[E]) Yes 3 No • Check if the connector of the sensor is disconnected. (CN246, J960, J965, J966, J970, J972) • Check if any of the connectors CN241 and CN246 on the PFP board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the slit reaches the sensor. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP board and PFC board are short circuited or open circuited.
3 PFC board • Check if the conductor pattern on the PFC board is short circuited or open circuited.

Code: C180
Description: LCF tray-up motor abnormality
Causes: Paper feeding system related service call LCF tray-up motor abnormality
Troubleshooting Guides: 1 Does the tray move? (Perform the output check: FS-03-271) Yes 2 No • Check if the connector of the LCF tray-up motor is disconnected. (CN5, CN50) • Check if any of the connectors CN100 and CN101 on the LCF board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and PFC board are short circuited or open circuited.
2 Are the LCF tray-up sensor and LCF tray bottom sensor working? (Perform the input check: FS-03-[F1]ON/[8]/[A], FS- 03-[F1]ON/[8]/[E]) Yes 3 No • Check if the connectors of the sensors are disconnected. (CN2, CN20, CN200, CN205, CN6, CN64) • Check if any of the connectors CN100 and CN101 on the LCF board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the slit reaches the sensors. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and PFC board are short circuited or open circuited.
3 PFC board • Check if the conductor pattern on the PFC board is short circuited or open circuited.

Code: C1A0
Description: LCF end fence motor abnormality
Causes: Paper feeding system related service call LCF end fence motor abnormality
Troubleshooting Guides: 1 Is the LCF end fence motor working? (Perform the output check: FS-03- 207) Yes 2 No • Check if the connector of the LCF end fence motor is disconnected. (CN5, CN51) • Check if any of the connectors CN100 and CN101 on the LCF board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFC board and LGC board are short circuited or open circuited.
2 Are the LCF end fence home/stop position sensors working? (Perform the input check: FS-03-[F1]ON/[8]/[H], FS- 03-[F1]ON/[8]/[G]) Yes 3 No • Check if the connectors of the sensors are disconnected. (CN4, CN40, CN400, CN402, CN403) • Check if either of the connectors CN100 or CN107 on the LCF board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the slit reaches the sensors. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and PFC board are short circuited or open circuited.
3 PFC board • Check if the conductor pattern on the PFC board is short circuited or open circuited.

Code: C1B0
Description: LCF transport motor abnormality
Causes: Paper feeding system related service call The LCF transport motor is not rotating normally (when paper can be fed from any drawer except the LCF).
Troubleshooting Guides: 1 Is the LCF transport motor working? (Perform the output check: FS-03-122/ 172) Yes 2 No • Check if the connector CN3, CN30 of the LCF transport motor is disconnected. • Check if the signal line connector CN100 on the LCF board is disconnected. • Check if the power line connector CN101 on the LCF board is disconnected. • Check if the connector CN459, J700 on the PFC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF transport motor board, LCF board and PFC board are short circuited or open circuited.
2 LCF transport motor PFC board • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF transport motor board, LCF board and PFC board are short circuited or open circuited. • Check if the PLL lock signal CN102-3 pin output from the LCF board is always “L” level. • Check if the voltage supplied to the microcomputer input terminal IC103-17 pin is always “L” level.

Code: C260
Description: Peak detection error
Causes: Scanning system related service call
Troubleshooting Guides: 1 Does the exposure lamp light? (Perform the output check: FS-03-267) Yes It is lit. 2 No It is not lit. 3
1 Does the exposure lamp light? (Perform the output check: FS-03-267) Yes It is lit. 2 No It is not lit. 3
2
Shading correction plate Check if there is any scratch or stain on the shading correction plate.
Mirror Check if the mirror is tilted. 1. Check that the lens is reflected in the mirror looking at carriage-1 from the upper position. 2. Check that the mirror is secured at the leaf spring.
Carriage 1. Check if the carriage is tilted by moving it to the left stopping point. 2. Check if the wire fixing screw is loosened. 3. Check if the movement of the carriage is unstable due to disengagement of the carriage roller.
Exposure lamp 1. Check if the exposure lamp is correctly lit. 2. Check if the harness is connected properly to the exposure lamp connector. (CN123, CN010) 3. When the carriage is driven, check if the harness interferes with it or parts are caught in it.
CCD board / Lens unit 1. Check if the connector of the CCD board is connected properly. (CN120, CN001) 2. Check if the CCD board is installed properly. (Check that the lens unit is not tilted or the screw is securely tighten.)
SYS board 1. Check if the connector of the SYS board (CN120, CN123) is connected properly. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if the power is output from the SYS board for CCD. (CN122).
3
SYS board 1. Check if the supply cable is connected properly to the connector (CN105). 2. Check if the mounted parts on the SYS board are damaged or abnormal.
Exposure lamp 1. Check if the harness of the exposure lamp is connected to the LED light source properly. (CN123, CN010) 2. Check if the exposure lamp is scratched or damaged. 3. Check if the exposure lamp harness comes off the board.
Power supply harness 1. Check if wiring of the power supply harness (CN105) is abnormal. 2. Check if the harness is scratched or open circuited.

Code: C262
Description: Peak detection error (communication error)
Causes: Scanning system related service call
Troubleshooting Guides: 1 Lens unit 1. Check if the connector is properly connected all the way in the CCD board. (CN001) 2. Check if there is any abnormality in the appearance of parts mounted on the CCD board. 3. Check if +5V is output to the CCD board. 4. Check if +3.3V is output from the CCD board. 5. Replace the Lens unit.
2 SYS board 1. Check if the connector is properly connected all the way in the SYS board. (CN120) 2. Check if there is any abnormality in the appearance of parts mounted on the SYS board. 3. Check if +5V is output to the SYS board. 4. Replace the SYS board.
3 Harnesses 1. Check if the harness has any scratch on it or is open circuited or caught anywhere. 2. Check if there is any abnormality in the connector terminal or the contacting surface of the flat cable. 3. Replace the harness between the SYS board and the CCD board.

Code: C270
Description: Carriage home position sensor not going OFF within a specified time / Downloading firmware with an incorrect model
Causes: Scanning system related service call
Troubleshooting Guides: 1 Carriage locking Check if the carriage locking screw for packaging is attached.
2 Are the carriages slightly moved to the feeding direction?/Are the carriages staying at a position other than home position? Yes Check if the circuits of the CCD board are abnormal. No 3
3 CCD board • Check if the connector pin is disconnected or the harness is short circuited or open circuited. (CN001) • Check if the conductor pattern on the CCD board is short circuited or open circuited. • If the model of the firmware downloaded is incorrect, a C270 error (exposure lamp blinks twice) occurs. If the exposure lamp blinks twice, download the correct firmware.
4 Carriage home position sensor 1. Check if the harness of the carriage home position sensor is connected properly. (CN121, J002) 2. Check if the harness is caught or open circuited.
5 SYS board 1. Check if the connector of the SYS board (CN120, CN121, CN124, CN105) is connected properly. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if 24 V (CN105) on the SYS board is short circuited. 4. Check if 24 V is supplied to the SYS board (CN105).
6 Scan motor 1. Check if the belt tension is loosened. 2. Check if the motor fixing screw is loosened. 3. Check if the carriage wire and the timing belt come off. 4. Check if the connector (CN124) is connected to the motor properly. 5. Check if the harness of the motor is caught or open circuited.
7 Setting Clear the SRAM data and initialize them.

Code: C280
Description: Carriage home position sensor not going ON within a specified time
Causes: Scanning system related service call
Troubleshooting Guides: 1 Carriage locking Check if the carriage locking screw for packaging is attached.
2 Carriage hole position sensor 1. Check if the harness is properly connected to the sensor. 2. Check if the harness is caught or open circuited.
3 SYS board 1. Check if the harness (CN121, J002) of the carriage home position sensor is connected properly. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if 24 V (CM105) on the SYS board is short circuited. 4. Check if 24 V is supplied to the SYS board (CN105).
4 Scan motor 1. Check if the belt tension is loosened (if the motor screw is loosened). 2. Check if the carriage wire and the timing belt come off. 3. Check if the connector (CN124) is connected to the motor properly. 4. Check if the harness of the motor is caught or open circuited.

Code: C290
Description: Scanner fuse blowout
Causes: Scanning system related service call
The scanning system does not operate due to a blowout of the fuse in the scanning system.
Troubleshooting Guides: Is 24V supplied to the SYS board?
Yes Check the following because the signal for checking 24V on the SYS board is abnormal. 1. Check if the scanner CPU (IC26) is damaged or abnormal. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if 24V on the SYS board is short circuited. 4. Check if 24V is supplied to the SYS board (CN105).
No 1. Check if the 24V supply harness is properly connected to the connector (CN105). 2. Check if 24V and SG on the SYS board are short circuited. 3. Check if the power supply is short circuited by pulling out the supply harness on the SYS board (CN105). 4. Check if the fuse on the LVPS (F203) is open circuited. 5. Check if there is no abnormality on the LVPS.

Solve OKI ES9476MFP Error codes

Code: C370
Description: Transfer belt unit abnormality
Causes: Copy process related service call
Transfer belt abnormality
Troubleshooting Guides: Transfer belt unit Check if the transport belt unit is working normally.
Drum TBU drive unit Connector check (J651, J656)
Drum TBU motor Connector check (CN327, J651)
Drum cleaner unit Check if the drum is overloaded.
Transfer belt cleaning unit Check that there is no abnormality in the cleaning blade. Check if the waste toner auger is overloaded.
LGC board Connector check (CN327)
Transfer belt Check if it’s normal
1st transfer roller status detection sensor (S12) Sensor check
1st transfer contact/release clutch (CLT2) Clutch check

Code: C380
Description: Auto-toner sensor-K abnormality (upper limit)
Causes: Copy process related service call
Auto-toner sensor-K abnormality (upper limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the developer material is too light visually. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor – Equipment Harness – LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J635, J636). • Remove any foreign matter such as toner in the connector of the auto toner sensor.

Code: C381
Description: Auto-toner sensor-K abnormality (lower limit)
Causes: Copy process related service call
Auto-toner sensor-K abnormality (lower limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J635, J636). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C390
Description: Auto-toner sensor-C abnormality (upper limit)
Causes: Copy process related service call
Auto-toner sensor-C abnormality (upper limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the developer material is too light visually. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J633, J634). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C391
Description: Auto-toner sensor-C abnormality (lower limit)
Causes: Copy process related service call
Auto-toner sensor-C abnormality (lower limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J633, J634). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C3A0
Description: Auto-toner sensor-M abnormality (upper limit)
Causes: Copy process related service call
Auto-toner sensor-M abnormality (upper limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the developer material is too light visually. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J631, J632). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C3A1
Description: Auto-toner sensor-M abnormality (lower limit)
Causes: Copy process related service call
Auto-toner sensor-M abnormality (lower limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J631, J632). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C3B0
Description: Auto-toner sensor-Y abnormality (upper limit)
Causes: Copy process related service call
Auto-toner sensor-Y abnormality (upper limit)
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the developer material is too light visually. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J629, J630). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C3B1
Description: Auto-toner sensor-Y abnormality (lower limit)
Causes: Copy process related service call
Troubleshooting Guides: 1 Developer unit • Check if the developer unit is installed properly. • Check that the developer unit and coupling on the equipment side are properly engaged. • Check that the mixer of the developer unit is rotated. • Check if the amount of the developer material is too large or too small. • Remove any toner or dust on the auto-toner sensor connector and the drawer connector of the process cover. • Remove any toner or dust on the EPU sensor connector and the drawer connector on the equipment side.
2 Auto toner sensor Harness LGC board • Check the connectors and harnesses between the auto toner sensor and LGC board (CN313, J629, J630). • Check if there is any foreign matter such as toner in the connector of the auto toner sensor. Remove if there is and reconnect it.

Code: C3E1
Description: Drum/cleaner/charger unit replacement (old-new) detection abnormality
Causes: Copy process related service call
Troubleshooting Guides: 1 Check if the old/new detection pusher of the drum cleaner unit is being ejected. Yes 4 No 2
2 Check if the harness of the drum old/new detection switch in the drum cleaner unit is open circuited. Yes 3 No Replace the harness.
3 Is the drum old/new detection switch of the drum cleaner unit normal? Yes 4 No Replace the drum old/new detection switch.
4 Check if the drum old/new detection pusher is moved to the escape position while the coupling of the drum cleaner unit is rotated by hand. (Is a driving in the old/new detection pusher section transmitted?) Yes 3 No Correct the drum old/new detection pusher so that it is moved to the escape position.
5 Check that the coupling of the drum TBU drive unit is driven properly. Yes Correct the engagement of the couplings in the drum TBU drive unit and the drum cleaner unit. 9
6 Check that the drum TBU drive motor rotates properly. (Input check: FS-03-101/151) Yes 9 No 7
7 Check that the connector of the drum TBU drive motor is connected properly. (CN327, J651) Yes 9 No 8
8 Check if the harness of the drum TBU drive motor is open circuited. Yes 9 No Replace the drum TBU drive motor.
9 Check that the connector of the LGC board (CN313, CN327) is connected properly. Yes 11 No Reconnect the connector.
10 Is the harness of the LGC board normal? Yes 11 No Replace the harness.
11 Is the LGC board normal? Replace the LGC board.

Code: C445, C446, C447, C449
Description: Heater temperature abnormality after abnormality judgment
Causes: Fuser unit related service call
Heater temperature abnormality after abnormality judgment
Troubleshooting Guides: 1 Power voltage Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?)
2 Thermistor • Check if the center and edge thermistor are installed properly. • Check if the harnesses of the center and edge thermistor are open circuited. • Check if the connectors of the center and edge thermistor are disconnected (CN306, J608).
3 Switching regulator and fuser unit • Is the fuser unit installed correctly? • Check if the IH-COIL is broken. • Check if the terminal of the IH-COIL is attached securely. • Check if the thermostat is blown • Check if the drawer connector is damaged or its connection is detected. • Check if the connectors of the power supply unit are disconnected (CN504, CN505, CN56, CN564, CN565). • Check if the power supply unit is abnormal.
4 LGC board • Check if the connectors CN306 and CN302 are disconnected. • Check if the conductor pattern on the LGC board is short circuited or open circuited.
5 Clear the status counter 1. Perform FS-08-2002. 2. Change the current status counter value ‘5’, ‘6’, ‘7’, ‘9’, ’10’, ’22’, ’23’, ’24’, ’25’, ’27’, ’29’, or ’63 to 70′. Change the value to ‘0’. * The status counter value is as follows in the following cases. – The error occurred during warming-up: ‘5’ or ‘6’ The error occurred after the equipment has become ready: ‘7’. – The temperature detected by the center thermistor is 220°C or higher, the temperature detected by the edge thermistor is 237°C or higher: ‘9’, ’10’, ’22’, ’23’, ’25’, ’27’ or ’29’ – The error occurred during printing: ’24’, ’25’, or ’64 to 70′. – The error occurred during energy saving: ’27’. – A paper jam occurred: ’29’.

Code: C471, C472
Description: [C471] IH board initialization abnormality
[C472] Power supply abnormality
Causes: Fuser unit related service call
Power is not supplied to the IH board
Troubleshooting Guides: Power supply • Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?)
Side cover interlock switch • Connector check (CN514, J519) • Harness check
Fuser unit • Drawer connector check • Thermostat check • Unit check
LGC board • Connector check (CN302, CN306) • Board check
IH board • Connector check (CN561, CN562, CN563) • Board check
Status counter 1. Perform FS-08-2002. Change the current status counter value ’11’ to ‘0’. 2. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Connector and harness • Check the connectors and harnesses of the parts replaced just before C471 occurred. • Check the connectors which connect the equipment and LCF/PFP.

Code: C473, C474
Description: [C473] Surge pressure detection / power and voltage upper limit abnormality
[C474] Power and voltage lower limit abnormality
Causes: Fuser unit related service call
The power voltage supplied to the IH board is higher than upper limit (C473) The power voltage supplied to the IH board is lower than upper limit (C474)
Troubleshooting Guides: Power supply • Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?)
Fuser unit • Drawer connector check • Thermostat check • Unit check
IH board • Connector check (CN561, CN562, CN563) • Board check
LGC board • Connector check (CN302, CN306) • Board check
Status counter 1. Perform FS-08-2002. Change the current status counter value ’13’ or ’16’ to ‘0’. 2. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.

Code: C480
Description: IGBT high temperature abnormality/Thermistor breaking abnormality
Causes: Fuser unit related service call
IGBT overheating abnormality
Troubleshooting Guides: IH board cooling fan • Fan motor check (Perform the output check: FS-03-442) • Connector check (J601) • Harness check
LGC board • Connector check (CN302) • Harness check
IH board • Connector check (CN561, CN562, CN563, CN564, CN565) • Harness check
Status counter 1. Perform FS-08-2002. Change the current status counter value ’15’ to ‘0’. 2. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.

Code: C4B0
Description: Fuser unit counter abnormality
Causes: Fuser unit related service call
Fuser unit counter abnormality
Troubleshooting Guides: LGC board • Check if the conductor pattern on the board is short circuited or open circuited. • Check if EEPROM is mounted.
Status counter 1. Perform FS-08-2002. 2. Reset the displayed current status counter value ‘1 to 4’, ‘8’, ’17 to 21′, ’26’, ’28’, ’30 to 62′, or ’67 or more’ to ‘0’. 3. Turn the power OFF and then back ON. Make sure that the equipment enters the normal status.

Code: C4B1
Description: Fuser unit voltage judgment abnormality
Causes: Fuser unit related service call
Errors in the IH board when the destination selection of the equipment is incorrect.
Troubleshooting Guides: LGC board • Connector check (CN302) • Board check
IH board • Connector check (CN561, CN562, CN563) • Board check

Code: C4C0
Description: Fuser unit new/old detection fuse abnormality
Causes: Fuser unit related service call
Fuser unit new/old detection fuse abnormality
Troubleshooting Guides: Fuser unit • Connector check (J608) • Check if the harness of fuser unit new/old detection fuse is caught or open circuited / short circuited. • Unit check
LGC board • Connector check (CN306) • Harness check • Board check

Code: C4E0, C4E1
Description: [C4E0] Fuser pressure roller release abnormality
[C4E1] Fuser pressure roller contact/semi-contact abnormality
Causes: Fuser unit related service call
The releasing behavior of the pressure roller cannot be detected/the abnormality of the sensor of the fuser unit. (C4E0)
The contacting/semi-contacting behavior of the pressure roller cannot be detected/the abnormality of the sensor of the fuser unit. (C4E1)
Troubleshooting Guides: Pressure roller contact/release detection sensor (S29) • Sensor check (Perform the input check: FS-03-[F3]ON/[2]/[H]) • Connector check (CN306, J605) • Harness check
Pressure roller contact/release motor (M13) • Motor check (Perform the output check: FS-03-272) • Connector check (CN305, J602) • Harness check
Fuser unit • Drawer connector check • Thermostat check • Unit check Check if the adjustment value for the tilting of the fuser unit is aligned to the uppermost line of the scale.
LGC board • Connector check (CN305, CN306) • Board check

Code: C4E2
Description: Fuser belt rotation detection sensor abnormality
Causes: Fuser unit related service call
The fuser belt does not rotate or does so incorrectly/the abnormality of the sensor of the fuser unit (front/color of harness: yellow)
Troubleshooting Guides: Fuser unit • Fuser belt rotation detection sensor check (Input check: 03-[ALL]OFF/[6]/[A]) • Connector check in the fuser belt rotation sensor • Harness check in the fuser belt rotation sensor • Rotation detection plate (rotor) check • Grease check in the gear (shaft / tooth flank) • Fuser belt check • Check if the bushing of fuser belt drive shaft is worn. • Fuser unit installation check (Check that the levers fixing the fuser unit are lifted up.)
Fuser belt rotation detection sensor • Sensor check (Input check: FS-03-[ALL]OFF/[6]/[A]) • Connector check in the fuser belt rotation sensor (CN306, J604) • Harness check in the fuser belt rotation sensor
Fuser drive unit • Bushing check • Check that the drive unit is correctly installed (3 dowels). • Check that the drive metal plate is not broken. • Check that the gear is not damaged or worn. • One-way clutch check • Grease check in the gear (shaft / tooth flank)
LGC board • Connector check (CN305, CN306) • Board check
Fuser motor • Motor check (Perform the output check: FS-03-113/163) • Connector check (CN305, J603) • Harness check

Code: C550
Description: RADF I/F error
Causes: Communication related service call
Troubleshooting Guides: RADF board • Check if the harness connecting the RADF board and SYS board is disconnected or open circuited. (CN122, J12, CN71) • Check if the conductor pattern on the RADF board is short circuited or open circuited. • Connector check
SYS board • Check if the conductor pattern on the SYS board is short circuited or open circuited. • Connector check

Code: C551
Description: RADF model detection error
Causes: RADF related service call
Incorrect RADF installed to the equipment
Troubleshooting Guides: RADF
• Replace the RADF with the correct one.

Code: C552
Description: DSDF abnormality
Causes: DSDF service call
Troubleshooting Guides: Connector Check if the connectors (CN70, CN71 and J97) connected the DSDF and the equipment are connected properly.
Firmware Update the firmware of the DSDF.
Connector • Check if the connectors of the DSDF control PC board are connected properly. • Replace the harness.
DSDF control PC board Replace the DSDF control PC board.

Code: C553
Description: Peak detection error
Causes: DSDF service call
The light source of the DSDF-CCD module does not light, or there is a detection error of the light source.
Troubleshooting Guides: HDMI cable Check if the HDMI cables (CN78 and CN90) are connected properly.
Relay board Check if the relay board is installed in the SYS board properly.
Connector • Check if the connectors of the SYS board and the DSDF control PC board are connected properly. • Replace the harness.
Power supply Check if 24V is supplied to the DSDF control PC board properly. (Check the connector of the power supply of the DSDF control PC board.: CN70 Pins 1 and 2) (Check the connector of the power supply of the SYS board: CN122 Pins 19 and 20)
DSDF exit motor • Check if the DSDF exit motor is working properly. • Check if the connectors (J991 and CN77) on the DSDF control PC board are disconnected from the DSDF exit motor or the harnesses are open circuited. Correct if any.
DSDF-CCD module • Check if the connectors of the DSDF-CCD module and the DSDF control PC board are connected properly. • Check that there is no abnormality in the DSDF-CCD module.

Code: C554
Description: AFE communication error
Causes: DSDF service call
Communication error between the DSDF-CCD module and SYS board
Troubleshooting Guides: HDMI cable Check if the HDMI cables (CN78 and CN90) are connected properly.
Relay board • Check if the relay board is installed in the SYS board properly.
DSDF-CCD module • Check if the connectors of the DSDF-CCD module and the DSDF control PC board are connected properly. • Check that there is no abnormality in the DSDF-CCD module.

Code: C560
Description: Communication error between Engine-CPUs
Causes: Optional communication related service call
• Communication error between Engine-CPUs
• Communication error between LGC-PFU
Troubleshooting Guides: LGC board • Turn the power OFF and then back ON using the main power switch. • Connector check (CN323) • Check if the conductor pattern on the LGC board is open circuited or short circuited. • Check if the harness between LGC-PFC has any scratch on it or is open circuited or caught anywhere. • If the same error occurs again, replace the LGC board.
PFC board • Connector check (CN452) • Check if the conductor pattern on the PFC board is open circuited or short circuited. • Check if the harness between LGC-PFC has any scratch on it or is open circuited or caught anywhere. • If the same error occurs again, replace the PFC board.

Code: C580
Description: Communication error between LGC board and finisher
Causes: Communication related service call
Troubleshooting Guides: Finisher
Check if the specified finisher is attached.

Code: C5A0
Description: EEPROM not connected (LGC board)
Causes: Circuit related service call
EEPROM abnormality (LGC board)
Troubleshooting Guides: EEPROM EEPROM check
LGC board • IC socket check (25/30/35ppm: IC63, 45/50ppm: IC12) • Board check

Code: C5A1
Description: EEPROM data abnormality (LGC board)
Causes: Circuit related service call
EEPROM data abnormality (LGC board)
Troubleshooting Guides: EEPROM EEPROM check
LGC board • IC socket check (25/30/35ppm: IC63, 45/50ppm: IC12) • Board check

Code: C730
Description: DSDF EEPROM format error
Causes: DSDF service call
An abnormality occurs while the data are being written in the EEPROM of the DSDF.
Troubleshooting Guides: Adjustment Perform the DSDF read-in sensor-1 automatic adjustment.
DSDF control PC board If this error still persists after the DSDF read-in sensor-1 automatic adjustment has been performed, replace the DSDF control PC board.

Code: C7B0
Description: Initial time-out error
Causes: DSDF service call
The initialization is not completed within the specified time.
Troubleshooting Guides: Reproducing ability Turn the power OFF and then back ON to check the occurrence.
DSDF shading sheet Clean the DSDF shading sheet.

Code: C8C0
Description: DSDF read-in sensor-1 automatic adjustment error
Causes: DSDF service call
An adjustment value becomes outside the specified one during DSDF read-in sensor-1 automatic adjustment.
Troubleshooting Guides: DSDF read-in sensor-1 • Perform the DSDF read-in sensor-1 adjustment manually. • If the LED does not light even if the adjustment has been performed, check the DSDF read-1 sensor-1 and the DSDF control PC board. • Check if the connector on the DSDF control PC board is disconnected from the DSDF read-in sensor-1 or the harnesses are open circuited. Correct if any. • Replace the DSDF read-in sensor-1.
DSDF control PC board Replace the DSDF control PC board.

Code: C8E0
Description: RADF communication protocol abnormality
Causes: Optional communication related service call
The system has to be stopped because the control abnormality occurred.
Troubleshooting Guides: Power • Turn the power OFF and then back ON to check if the equipment operates normally.
RADF board • Connector check Board check

Code: C900
Description: Connection error between the SYS board and the LGC board
Causes: Circuit related service call
Connection error between SYS board and LGC board
Troubleshooting Guides: LGC board • Connector check (CN329) • Board check
SYS board • Connector check (CN132) • Board check
Harness (Flat cable) • Connector check • Harness check

Code: C911
Description: Toner cartridge IC chip access board abnormality
Causes: Toner cartridge related service call
Abnormal access between the CTRG board and LGC board (High possibility of failure except the LGC board)
Troubleshooting Guides: 1 Does non-genuine toner cartridge display appear when the front cover is opened and closed? Yes Use the genuine toner cartridge. No 2
2 Toner cartridge • Check the phenomenon by removing the toner cartridges (Y, M, C and K) and reinserting them. • Check that the CTRG board of each cartridge (Y, M, C and K) is installed properly. • Avoid touching the contact point. • Wipe the contact point with a soft cloth if it’s stained.
3 Contact point on the equipment side Check that the spring of the contact point for each color (Y, M, C and K) is not deformed.
4 Is the spring of the contact point returned when it is pushed lightly? Yes No • Check that the CTIF board is installed properly. • Board check 7
5 LGC board • Connector check (CN315) • Board check
6 Harness • Connector check (CN315, CN440) • Harness check
7 CTIF board for each color (Y, M, C and K) • Check that the board is installed properly. • Board check
8 Perform the above troubleshooting and if the C911 error is cleared, set the following selfdiagnostic codes to ‘0’ (normal). • FS-08-4689-0: Board information of toner cartridge (Y) • FS-08-4689-1: Board information of toner cartridge (M) • FS-08-4689-2: Board information of toner cartridge (C) • FS-08-4689-3: Board information of toner cartridge (K)

Code: C940
Description: Engine-CPU abnormality
Causes: Circuit related service call
Engine-CPU abnormality
Troubleshooting Guides: Main power switch Turn OFF the main power switch, then back ON.
Engine-CPU • Check if the conductor pattern of the Engine-CPU is short circuited or open circuited. • Update the engine firmware.
LGC board Board check

Code: C962
Description: LGC board ID abnormality
Causes: Circuit related service call
Troubleshooting Guides: Error code • Turn the power OFF and then back ON using the main power switch, and then check if the error code changes to another one. • If it changes to another one, follow the procedure for the changed error code
LGC board • Connector check (CN330, CN329) • Board check • Check if the model of the equipment matches the color of the label on the LGC board.
SYS board • Connector check (CN131, CN132) • Board check
Harness • Connector check • Harness check

Code: C963
Description: Connection detection error between the SYS board and the LGC board
Causes: Circuit related service call
3.3V output from the SYS board not detected on the LGC board
Troubleshooting Guides: LGC board Connector check (CN329, CN330)
SYS board Connector check (CN131, CN132)
Harness between the SYS board and the LGC board Harness check
Harness between the SYS board and the low-voltage power supply Harness check
Harness between the SYS board and the LGC board
LGC board If the problem is not corrected by the replacement of the LGC board, reinstall the removed LGC board and replace the SYS board.
SYS board Harness between the SYS board and the low-voltage power supply

Code: C964
Description: LGC board boot process abnormality
Causes: Circuit related service call
LGC board boot process abnormality
Troubleshooting Guides: LGC board
Turn the power OFF and then back ON using the main power switch. If the same error occurs again, replace the LGC board.

Code: C970
Description: High-voltage transformer abnormality
Causes: Copy Process related service call
High-voltage transformer abnormality: Leakage of the main charger is detected.
Troubleshooting Guides: EPU Has the developer unit (Y, M, C, K) been installed securely? Press the slanted line portion of the developer unit until a click sound is heard.
Main charger Check if the main charger is installed securely.
Spring of high-voltage supply contact point Check if the spring of high-voltage supply contact point is deformed.
Needle electrode • Check if the needle electrode is broken or the main charger grid is deformed. • Check if any foreign matter is on the needle electrode or main charger grid.

Code: C9E0
Description: Connection error between the scanner CPU and system CPU
Causes: Circuit related service call
Connection error between scanner CPU and system CPU
Troubleshooting Guides: SYS board Board check

Code: CA00
Description: Color registration abnormality
Causes: Image control related service call
Color registration abnormality
Troubleshooting Guides: 1 Has the developer unit (Y, M, C, K) been installed securely? – Installed securely (upper) – Not installed securely (lower) No Press the slanted line portion of the developer unit until a click sound is heard.
2 Remove the transfer belt unit.
3 Is an image created on the transfer belt? Yes 7 No 4
4 Check if there is any abnormality on the rods of the main charger cleaner. Correct if there is.
5 Check if the drum is rotated properly by turning the coupling of the cleaner unit. Correct the auger and the surrounding hardware if not.
6 Laser optical unit • Check the connectors and harnesses – Mirror motor-Y/M/C: CN322, J643 – LGC board: CN317, CN319 (25/30/35ppm) CN317, CN318, CN319 (45/ 50ppm) – LRL board: CN205, CN204, 206, 207, 208, 209 (25/30/35ppm) CN210, CN211, CN212, 213, 214, 215, 216 (45/50ppm) – Image position aligning sensor (Front): CN309, J620, J623 – Image position aligning sensor (Rear) / Image quality sensor: CN309, J620, J624 – Sensor shutter solenoid: CN309, J620, J622 • Check if there is any stain or scratch on the laser optical unit. Clean or correct if there is.
7 Check if there is any stain on the image quality sensor (Front) and image quality sensor (Rear).
8 Check if the sensor shutter is working properly.
9 < Invalidating color registration control > • Perform FS-08-4546. • Set the value to “0” (not performed automatically).
10 < Checking the abnormal status on color registration > Perform FS-05-4720. (Displaying the cause of color registration detection error)

Code: CA10
Description: Polygonal motor abnormality
Causes: Laser optical unit related service call
Troubleshooting Guides: Polygonal motor • Motor check (Perform the output check: FS-03-103/153) • Connector check (Relay connector J643) • Harness check
LGC board • Connector check (CN322) • LGC board check
LSU cooling fan • Fan motor check (Perform the output check: FS-03-437) • Connector check (Relay connector J648) • Harness check
Developer unit cooling fan • Fan motor check (Perform the output check: FS-03-451) • Connector check (CN462, J662) • Harness check

Code: CA20
Description: H-Sync detection error
Causes: Laser optical unit related service call
The polygonal motor does not work normally.
Troubleshooting Guides: Laser optical unit • Connector check (Relay connector J643) • Check the harness/connector between the LGC board and the laser optical unit. • Flat cable/terminal check
LRL board Connector check – 25/30/35ppm: CN204, CN205 – 45/50ppm: CN210, CN211, CN212
LGC board • Connector check (CN322, CN317, CN318, CN319) • LGC board check
Grounding Check that the equipment is grounded properly.
EPU Has the developer unit (Y, M, C, K) been installed securely? Press the slanted line portion of the developer unit until a click sound is heard.

Code: CB00, CB01
Description: [CB00] Finisher not connected
[CB01] Finisher communication error
Causes: Finisher not connected: Communication error has occurred between the equipment and finisher. Finisher communication error: Communication error has occurred between the equipment and finisher.
Troubleshooting Guides: Finisher • Check if the harness connecting the equipment and the finisher control PC board is disconnected or open circuited. • Check if the conductor pattern on the finisher control PC board is open circuited or short circuited. • Update the finisher firmware. • Replace the finisher control PC board.
LGC board • Check if the harness connecting the finisher and the LGC board on the equipment is disconnected or open circuited. • Connector check (CN304) • Check if the conductor pattern on the LGC board is open circuited or short circuited. • Replace the LGC board.

Code: CB10
Description: Entrance motor abnormality
Causes: Finisher related service call
Entrance motor abnormality: The entrance motor is not rotating normally.
Troubleshooting Guides: MJ-1109/1110
Feeding roller Rotate the feeding roller. Fix any mechanical problem.
Entrance motor (M1) Check if the connector (CN17) on the finisher controller PC board is disconnected from the entrance motor (M1) and the harnesses are open circuited. Correct if so.

Code: CB11
Description: Buffer tray guide motor abnormality
* A [CB11] error occurs if the [ED16] error occurs three times in succession or the [ED16] error occurs during the initialization.
Causes: Finisher related service call
Buffer tray guide motor abnormality: The buffer tray guide motor is not rotating or the buffer tray guide is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Buffer tray guide Raise the buffer roller and open/close the buffer tray guide. Fix any mechanical problem.
Buffer tray guide motor (M2) Check if the connector (CN10) on the finisher control PC board is disconnected from the buffer tray guide motor (M2) and the harnesses are open circuited. Correct if so.

Code: CB13
Description: Finisher exit motor (M11) abnormality
Causes: Finisher related service call
The exit motor is not rotating or the exit roller is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Exit roller • Is there any mechanical problem when the exit roller is rotated? Correct if so.
Exit motor (M11). • Motor check • Connector check (CN15) • Harness check
Finisher control PC board (FIN) • Connector check (CN15) • Board check

Code: CB14, EAFE
Description: [CB14] Assist arm motor (M10) abnormality
[EAFE] Paper holding cam position error (paper jam)
Causes: Finisher related service call
The assist arm motor is not rotating or the paper pusher cam is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Paper pusher cam • Is there any mechanical problem when the paper pusher cam is rotated?
Assist arm motor (M10) • Motor check • Connector check (CN10) • Harness check
Finisher control PC board (FIN) • Connector check (CN10) • Board check

Code: CB30
Description: Movable tray shift motor (M1) abnormality, Movable tray paper top detection error
Causes: Finisher related service call
Movable tray shift motor abnormality: The movable tray shift motor is not rotating or the movable tray is not moving normally.
Troubleshooting Guides: MJ-1042
Movable tray shift motor (M1) Stack top detection solenoid (SOL1) Stack top detection sensor-1 (S1) Stack top detection sensor-2 (S2 Movable tray lower limit sensor (S14)
A locking signal is detected after the specified time *while the movable tray is moving. * A locking signal is not monitored from the start driving the motor until the specified time has passed. The stack top position of paper is not detected after the movable tray shift motor (M1) is driven in the specified time when the movable tray is moved up. The lower limit position of the stack top of paper is not detected after the movable tray shift motor (M1) has been driven in the specified time during the initial movement of the movable tray. The turning OFF of the movable tray lower limit sensor (S14) is not detected when the movable tray is moved from a point where this sensor is turned ON to one point where this sensor is turned OFF after the movable tray shift motor (M1) has been driven in the specified time.
Movable tray shift motor (M1) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor
Movable tray lower limit sensor (S14) abnormality Measure the voltage on TP17 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity among the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN4, CN10)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensors and connectors, exchange the finisher control PC board (FIN).
Stack top detection solenoid (SOL1) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the solenoid.
Stack top detection sensor-1 (S1) abnormality Measure the voltage on TP11 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Stack top detection sensor-2 (S2) abnormality Measure the voltage on TP20 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN3)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the solenoid, sensors and connector, exchange the finisher control PC board (FIN).

Code: CB30, EAFC
Description: [CB30] Movable tray shift motor abnormality
[EAFC] Movable tray height error (paper jam)
Causes: Finisher related service call
Movable tray shift motor abnormality: The movable tray shift motor is not rotating or the movable tray is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Movable tray If there is mechanical problem when the movable tray is moved, fix the mechanism.
Movable tray shift motor (M12) Check the connectors and harnesses between the movable tray shift motor (M12) and the finisher control PC board (CN19).
Movable tray position A, B, and C sensors (S13, S14 and S15) • Connector check (CN20) • Sensor check • Harness check

Code: CB31, EAFD
Description: [CB31] Movable tray paper-full detection error
[EAFD] Movable tray movement error (paper jam)
Causes: Finisher related service call
Movable tray paper-full detection error: The actuator of the movable tray paper-full detection sensor does not move smoothly.
Troubleshooting Guides: MJ-1109/1110
Movable tray paper-full sensor (S16)
Fix any mechanical problem occurring when the actuator is moved. Check if there is a disconnection of the connector, incorrect installation or breakage of the movable tray paper-full sensor (S16). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN22) on the finisher controller PC board is disconnected from the movable tray paper-full sensor (S16) and the harnesses are open circuited. Correct if so.
Movable tray position A, B, and C sensors (S13, S14 and S15)
• Connector check (CN20) • Sensor check • Harness check

Code: CB40
Description: Front alignment motor abnormality
* You receive a [CB40] error when the [ED13] error occurs three times in succession.
Causes: Finisher related service call
Front alignment motor abnormality: The front alignment motor is not rotating or the front alignment plate is not moving normally.
Troubleshooting Guides: Rear alignment motor (M3) Rear alignment plate home position sensor (S6)
The turning OFF of the rear alignment plate home position sensor (S6) is not detected when the rear alignment plate is moved from a point where this sensor is turned ON to one point where this sensor is turned OFF after the rear alignment motor (M3) has been driven at the specified number of pulse. The turning ON of the rear alignment plate home position sensor (S6) is not detected when the rear alignment plate is moved from a point where this sensor is turned OFF to one point where this sensor is turned ON after the rear alignment motor (M3) has been driven at the specified number of pulse.
Rear alignment motor (M3) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Rear alignment plate home position sensor (S6) abnormality Measure the voltage on TP16 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN5, CN12)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensor and connectors, exchange the finisher control PC board (FIN).

Code: CB40
Description: Front alignment motor abnormality
* You receive a [CB40] error when the [ED13] error occurs three times in succession.
Causes: Finisher related service call
Front alignment motor abnormality: The front alignment motor is not rotating or the front alignment plate is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Front alignment plate If there is mechanical problem when the front alignment plate is moved, fix the mechanism.
Front alignment motor (M5) Check the connectors and harnesses between the front alignment motor (M5) and the finisher control PC board (CN18).

Code: CB50
Description: Staple motor (M10) abnormality
Causes: Stapler motor (M10) Staple unit clinching home position sensor (S16)
The staple unit clinching home position sensor (S16) does not detect the opening of the staple unit after the stapler motor (M10) has been driven reversely in the specified time from the closing during the initial movement of the staple unit. The staple unit clinching home position sensor (S16) does not detect the opening of the staple unit in the specified time from the closing during the clinching movement of the staple unit, and also this sensor does not detect the opening by the reverse rotation of the motor after the stapler is stopped. The staple unit clinching home position sensor (S16) does not detect the closing of the staple unit after the specified time during the clinching movement of the staple unit. The staple unit clinching home position sensor (S16) does not detect the opening of the staple unit at the start of the clinching.
Troubleshooting Guides: MJ-1042
Staple motor (M10) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the staple unit.
Staple unit clinching home position sensor (S16) abnormality Measure the voltage on CN16 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when the sensor is ON and within the range of 3.3V„b5% when OFF. If the voltage does not fall within the range mentioned, replace the staple unit.
Staple unit improper clinching prevention sensor (S15) abnormality Measure the voltage on TP25 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN16, CN17)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensors, switch and connectors, exchange the finisher control PC board (FIN).

Code: CB50
Description: Stapler home position error
* You receive a [CB50] error when the [EA50] error occurs three times in succession.
Causes: Finisher related service call
Stapler home position error: The stapler home position sensor does not work.
Troubleshooting Guides: MJ-1109/1110
Stapler • Check the connectors and harnesses between the stapler and finisher controller PC board (CN2). • Check the harnesses in the stapler.

Code: CB51
Description: Staple unit sliding motor (M7) abnormality
Causes: Staple unit sliding motor (M7) Staple unit sliding home position sensor (S3)
The turning OFF of the staple unit sliding home position sensor (S3) is not detected when the staple unit is moved from a point where this sensor is turned ON to one point where this sensor is turned OFF after the staple unit sliding motor (M7) has been driven at the specified number of pulse. The turning ON of the staple unit sliding home position sensor (S3) is not detected when the staple unit is moved from a point where this sensor is turned OFF to one point where this sensor is turned ON after the staple unit sliding motor (M7) has been driven at the specified number of pulse.
Troubleshooting Guides: MJ-1042
Staple unit sliding motor (M7) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the staple unit.
Staple unit sliding home position sensor (S3) abnormality Measure the voltage on TP18 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN3, CN18)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the staple unit, sensors and connectors, exchange the finisher control PC board (FIN).

Code: CB51, EAFB
Description: [CB51] Stapler shift home position error
[EAFB] Stapler movement error (paper jam)
Causes: Finisher related service call
Stapler shift home position error: The stapler is not at the home position.
Troubleshooting Guides: MJ-1109/1110
Stapler Move the stapler. Fix any mechanical problem.
Stapler unit home position sensor (S10) Check if there is a disconnection of the connector, incorrect installation or breakage of the stapler unit home position sensor (S10). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN27) on the finisher controller PC board is disconnected from the stapler unit home position sensor (S10) and the harnesses are open circuited. Correct if so.
Stapler unit shift motor (M9) Check if the connector (CN15) on the finisher control PC board is disconnected from the stapler unit shift motor (M9) and the harnesses are open circuited. Correct if so.

Code: CB60
Description: Stapler unit shift motor abnormality
Causes: Finisher related service call
Stapler shift motor abnormality: Stapler shift motor is not rotating or staple unit is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Stapler If there is mechanical problem when the stapler is moved, fix the mechanism.
Stapler unit shift motor (M9) Check the connectors and harnesses between the stapler unit shift motor (M9) and the finisher control PC board (CN15).

Code: CB80
Description: Finisher control PC board (FIN) backup RAM error
Causes: Finisher related service call
Backup RAM data abnormality: Abnormality of checksum value on finisher controller PC board is detected when the power is turned ON.
Troubleshooting Guides: MJ-1042
EEPROM Data readout check is performed after data writing and the result of the data readout check does not conform to the written data. The equipment does not enter the ready status after the specified time has passed from data writing.
Finisher control PC board (FIN) abnormal it Replace the finisher control PC board (FIN) as the cause is a fault in the IC of the backup RAM.

Code: CB80
Description: Backup RAM data abnormality
Causes: Finisher related service call
Backup RAM data abnormality: Abnormality of checksum value on finisher controller PC board is detected when the power is turned ON.
Troubleshooting Guides: MJ-1109/1110
Main power switch Turn OFF the main power switch, then back ON.

Code: CB81
Description: Flash ROM abnormality
Causes: Finisher related service call
Flash ROM abnormality: Abnormality of checksum value on finisher control PC board is detected when the power is turned ON.
Troubleshooting Guides: MJ-1109/1110
Main power switch Turn OFF the main power switch, then back ON.
Finisher control PC board (FIN) Board check

Code: CB82
Description: Finisher main program error
Causes: Finisher related service call
Finisher main program error
Troubleshooting Guides: MJ-1109/1110
Finisher control PC board (FIN) • Update the firmware version of the finisher control PC board (FIN). • Board check

Code: CB83
Description: Saddle main program error
Causes: Finisher related service call
Saddle main program error
Troubleshooting Guides: MJ-1110
Saddle control PC board (SDL)
• Update the firmware version of the saddle control PC board (SDL).
• Board check

Code: CB84
Description: Punch unit main program error
Causes: Finisher related service call
Hole Punch Unit – Main CPU program error
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Hole punch control PC board (HP)
• Update the firmware version of the hole punch control PC board (HP).
• Board check

Code: CB92
Description: Saddle Stitch Finisher RAM abnormality
Causes: Finisher related service call
Saddle Stitch Finisher RAM abnormality
Troubleshooting Guides: MJ-1110
Reproducibility Turn the power OFF and then back ON.
Saddle control PC board (SDL)
• Check if the conductor pattern on the saddle control PC board (SDL) is open circuited or short circuited.
• Board check

Code: CB93
Description: Saddle Stitch Finisher additional folding motor abnormality
Causes: Finisher related service call
An abnormal interruption of the encoder pulse of the additional folding motor occurs. The [CB93] error also occurs when the error [EF18] has occurred consecutively for 3 times.
Troubleshooting Guides: MJ-1110
Additional folding carrier • Is there any mechanical problem when the additional folding carrier is moved? Correct if so.
Additional folding motor (M20) • Motor check • Connector check (CN10) • Harness check
Saddle control PC board (SDL) • Connector check (CN10) • Board check

Code: CB94
Description: Saddle transport motor abnormality
Causes: Finisher related service call
Saddle transport motor abnormality or the motor is not moving normally. Paper holding mechanism or transport path switching solenoid abnormality. The [CB94] error also occurs when the error [EAB0] or [EF13] has occurred consecutively for 3 times.
Troubleshooting Guides: MJ-1110
Transport roller • Is there any mechanical problem when the transport rollers are rotated?
Saddle transport motor (M16) • Motor check • Connector check (CN5) • Harness check
Saddle control PC board (SDL) • Connector check (CN5) • Board check

Code: CB95
Description: Saddle Stitch Finisher stacker motor abnormality
Causes: Finisher related service call
The [CB95] error also occurs when the error [EF16] has occurred consecutively for 3 times.
Troubleshooting Guides: MJ-1110
Stacker carrier • Is there any mechanical problem when the stacker carrier is moved?
Stacker motor (M14) • Motor check • Connector check (CN8) • Harness check
Saddle control PC board (SDL) • Connector check (CN8) • Board check

Code: CBA0
Description: Front saddle stapler home position error
Causes: Finisher related service call
The detection of the home position of the stapler unit ends abnormally.
Troubleshooting Guides: MJ-1110
Front saddle stapler clinch unit • Harness check • Connector check
Saddle control PC board (SDL) • Connector check (CN2) • Board check

Code: CBB0
Description: Rear saddle stapler home position error
Causes: Finisher related service call
The detection of the home position of the stapler unit ends abnormally.
Troubleshooting Guides: MJ-1110
Rear saddle stapler clinch unit Harness check
Saddle control PC board (SDL) • Connector check (CN1) • Board check

Code: CBC0
Description: Saddle Stitch Finisher side alignment motor (M15) abnormality
Causes: Finisher related service call
• The side alignment motor (M15) is not rotating or the jog is not moving normally.
• The [CBC0] error also occurs when the error [EF15] has occurred consecutively for 3 times.
Troubleshooting Guides: MJ-1110
Saddle stitch unit Is there any mechanical problem when the jog is moved? Correct if so.
Side alignment motor (M15) • Harness check • Connector check (CN4)
Saddle control PC board (SDL) • Connector check (CN4) • Board check

Code: CBE0
Description: Saddle Stitch Finisher folding motor (M17) abnormality
* You receive a [CBE0] error when the [EF17] error occurs three times in succession.
Causes: Finisher related service call
An encoder pulse interruption error or rotation abnormality occurs in the saddle stitch finisher folding motor.
Troubleshooting Guides: MJ-1110
Folding motor encoder sensor (S34) • Sensor check (S34) • Connector check (CN13) • Harness check
Folding motor (M17) • Harness check • Connector check (CN19)
Saddle control PC board (SDL) • Connector check (CN13, CN19) • Board check

Code: CC02
Description: Stack exit roller nip home position detection error
Causes: Stack exit roller nip home position detection error
Troubleshooting Guides: MJ-1042
Stack exit roller shift motor (M6)
Stack exit roller home position sensor (S13)
The stack exit roller home position sensor (S13) does not detect that the exit roller is not at the upper position after the stack exit roller motor (M6) has been driven in the specified time when the exit roller is moved down.
The stack exit roller home position sensor (S13) does not detect that the exit roller is at the upper position after the stack exit roller shift motor (M6) has been driven in the specified time when the exit roller is moved up.

Code: CC20
Description: Saddle communication error
Causes: Finisher related service call
Saddle communication error: Communication error between finisher control PC board and saddle control PC board
Troubleshooting Guides: MJ-1110
Finisher control PC board (FIN) • Connector check • Harness check • Board check
Saddle control PC board (SDL) • Connector check • Harness check • Board check
Finisher control PC board (FIN) Update the firmware version of the finisher control PC board (FIN).
Saddle control PC board (SDL) Update the firmware version of the saddle control PC board (SDL).

Code: CC30
Description: Stack transport motor abnormality
* You receive a [CC30] error when the [EA70] error occurs three times in succession.
Causes: Finisher related service call
Stack transport motor abnormality: The stack transport motor is not rotating or the stack transport belt is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Stack transport belt Move the stack transport belt. Fix any mechanical problem.
Stack transport motor (M8) Check if the connector (CN18) on the finisher control PC board is disconnected from the stack transport motor (M8) and the harnesses are open circuited. Correct if so.

Code: CC31
Description: Transport motor abnormality
* You receive a [CC31] error when the [ED12] error occurs three times in succession.
Causes: Finisher related service call
Transport motor abnormality: The transport motor is not rotating or the stack transport roller -1 and -2 is not rotating normally.
Troubleshooting Guides: MJ-1109/1110
Stack transport roller -1 Stack transport roller -2 Rotate the stack transport roller -1 and -2. Fix any mechanical problem.
Transport motor Check if the connector (CN15) on the finisher control PC board is disconnected from the transport motor (M7) and the harnesses are open circuited. Correct if so.

Code: CC41
Description: Paper holder cam home position abnormality
Causes: Finisher related service call
Paper holder cam home position abnormality: The paper holder cam is not at the home position.
Troubleshooting Guides: MJ-1109/1110
Paper pusher cam Rotate the paper pusher cam. Fix any mechanical problem.
Paper holder home position sensor (S6) Check if the connector (CN11) on the finisher control PC board is disconnected from the paper holder home position sensor (S6) and the harnesses are open circuited. Correct if so.

Code: CC51
Description: Punch unit sliding motor (M12) abnormality
Causes: Punch unit sliding motor (M12) Punch sliding unit home position sensor (S23)
The punch sliding unit is not slid after sliding request is sent.
The punch sliding unit home position sensor (S23) does not detect that the unit is at its home position after the specified time when the unit is returned to the home position, or this sensor does not detect that the unit is out of its home position after the specified time when the unit is released.
The punch sliding unit home position sensor (S23) does not detect that the unit is at its home position after the specified time when the unit is moved, or this sensor does not detect that the unit is at its home position when the unit is released.
Troubleshooting Guides: MJ-1042
Punch unit sliding motor (M12) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Punch sliding unit home position sensor (S23) abnormality Measure the voltage on TP26 on the hole punch control PC board (HP). Then check that the measured voltage is 1V or lower when not shielded and within the range of 5V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Hole punch control PC board (HP): CN3, CN4, CN5, CN6, CN7)
Hole punch control PC board (HP) abnormality If the error still occurs after replacing the motor, sensor and connectors, exchange the hole punch control PC board (HP).

Code: CC51
Description: Sideways adjustment motor (M2) abnormality
* You receive a [CC51] error when the [ED11] error occurs three times in succession or occurs during the initialization.
Causes: Finisher related service call
Sideways adjustment motor (M2) abnormality: Sideways adjustment motor is not rotating or puncher is not shifting normally.
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Paper If there is any paper remaining on the transport path, remove the paper.
Sideways adjustment motor (M2) • If there is mechanical problem when the sideways adjustment motor (M2) is rotated, fix the mechanism. • Check the connector (CN10) and harnesses between the hole punch control PC board (HP) and sideways adjustment motor (M2).
Sideways deviation home position sensor (S3) • Sensor check • Harness check • Connector check (CN8)

Code: CC52
Description: Skew adjustment motor (M1) abnormality
* The [CC52] error occurs when the [ED10] error occurs three times in succession or during the initial operation.
Causes: Finisher related service call
Skew adjustment motor (M1) abnormality: Skew adjustment motor is not rotating or puncher is not shifting normally.
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Paper If there is any paper remaining on the transport path, remove the paper.
Skew adjustment motor (M1) • If there is mechanical problem when the skew adjustment motor (M1) is rotated, fix the mechanism. • Check the connector (CN10) and harnesses between the hole punch control PC board (HP) and skew adjustment motor (M1).
Skew home position sensor (S2) • Sensor check • Harness check • Connector check (CN10)

Code: CC54
Description: Abnormality of paper detection sensors (S24 and S25)
Causes: Paper detection sensor (S24/S25) adjustment error
The adjustment of the paper detection sensors (S24 and S25) has been failed.
Troubleshooting Guides: MJ-1042
Paper detection sensors (S24 and S25) abnormality Measure the voltage on pin CN6.8 on the hole punch control PC board (HP). Then check that the measured voltage is 3.0V or higher when not shielded and 1.2V or lower when shielded. If the voltage does not fall within the range mentioned, replace a couple of PC boards on either the light-receiving side or the light-emitting side.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Hole punch control PC board (HP): CN4, CN5, CN6)
Hole punch control PC board (HP) abnormality If the error still occurs after replacing the sensors and the connectors, exchange the hole punch control PC board (HP).

Code: CC60, CC61
Description: Punch motor abnormality
Causes: Punch motor (M11) Paper detection sensor (S24/S25) Punch shaft home position sensor (S26) Rear punch shaft home position sensor (S22)
The paper detection sensors (S24 and S25) do not emit light after specified time when they are selected
The level of the light-receiving amount is not lowered after the light-emitting amount of the paper detection sensors (S24 and S25) is adjusted to the lower limit.
Punching is not performed after punching request is sent, or the punching request is sent during the punching.
The status of the punch shaft home position sensor (S26) or the rear punch shaft home position sensor (S22) is not changed after punching request is sent.
A punching locking signal is detected consistently over the specified time.
The punch shaft home position sensor (S26) or the rear punch shaft home position sensor (S22) does not detect that the shaft is not at its home position at the start of punching or punch waste full detection.
Troubleshooting Guides: MJ-1042
Punch motor (M11) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Rear punch shaft home position sensor (S22) abnormality Measure the voltage on TP25 on the hole punch control PC board (HP). Then check that the measured voltage is 1V or lower when not shielded and within the range of 5V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Punch shaft home position sensor (S26) abnormality Measure the voltage on TP24 on the hole punch control PC board (HP). Then check that the measured voltage is 1V or lower when not shielded and within the range of 5V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Punch motor clock sensor (S20) abnormality Measure the voltage on TP27 on the hole punch control PC board (HP). Then check that the measured voltage is 1V or lower when not shielded and within the range of 5V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Hole punch control PC board (HP): CN2, CN5, CN6, CN7, CN8)
Hole punch control PC board (HP) abnormality If the error still occurs after replacing the motor, sensors and connectors, exchange the hole punch control PC board (HP).

Code: CC61
Description: Punch motor (M3) home position detection error
* The [CC61] error occurs when the [E9F0] error occurs three times in succession or during the initial operation.
Causes: Finisher related service call
Punch motor (M3) home position detection error: Punch motor is not rotating or puncher is not shifting normally.
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Paper If there is any paper remaining on the transport path, remove the paper.
Punch motor (M3) • If there is mechanical problem when the punch motor (M3) is rotated, fix the mechanism. • Check the connector (CN2) and harnesses between the hole punch control PC board (HP) and punch motor (M3).
Punch home position sensor (S4) • Sensor check • Harness check • Connector check (CN3)

Code: CC71
Description: Punch ROM checksum error
Causes: Finisher related service call
Punch ROM checksum error: Abnormality of checksum value on Hole punch controller PC board is detected when the power is turned on.
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Hole punch control PC board (HP) Board check

Code: CC72
Description: Punch RAM read/write error
Causes: Finisher related service call
Punch RAM read/write error: Abnormality of checksum value on Hole punch controller PC board is detected when the power is turned on.
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Hole punch control PC board (HP) Board check

Code: CC80
Description: Front alignment motor (M2) abnormality
Causes: Front alignment motor (M2) Front alignment plate home position sensor (S5)
The turning OFF of the front alignment plate home position sensor (S5) is not detected when the front alignment plate is moved from a point where this sensor is turned ON to one point where this sensor is turned OFF after the front alignment motor (M2) has been driven at the specified number of pulse.
The turning ON of the front alignment plate home position sensor (S5) is not detected when the front alignment plate is moved from a point where this sensor is turned OFF to one point where this sensor is turned ON after the front alignment motor (M2) has been driven at the specified number of pulse.
Troubleshooting Guides: MJ-1042
Front alignment motor (M2) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Front alignment plate home position sensor (S5) abnormality Measure the voltage on TP15 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN5, CN12)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensor and connectors, exchange the finisher control PC board (FIN).

Code: CC80
Description: Rear alignment motor abnormality
* You receive a [CC80] error when the [ED14] error occurs three times in succession.
Causes: Finisher related service call
Rear alignment motor abnormality: The rear alignment motor is not rotating or the rear alignment plate is not moving normally.
Troubleshooting Guides: MJ-1109/1110
Rear alignment plate If there is mechanical problem when the rear alignment plate is moved, fix the mechanism.
Rear alignment motor (M6) Check the connectors and harnesses between the rear alignment motor (M6) and the finisher control PC board (CN18).

Code: CC93
Description: Knurled roller shift solenoid abnormality
Causes: Knurled roller shift solenoid abnormality MJ-1042
Troubleshooting Guides: MJ-1042
Knurled roller shift solenoid (SOL3) 2nd transport motor (M4) Knurled roller home position sensor (S10)
The knurled roller home position sensor (S10) does not detect that the knurled roller is at the upper position after the 2nd transport motor (M4) has been driven at the specified number of pulses during the initial rising movement of the knurled roller.
The knurled roller home position sensor (S10) does not detect that the knurled roller is not at the upper position after the 2nd transport motor (M4) has been driven at the specified number of pulses during the initial lowering movement of the knurled roller.
The knurled roller home position sensor (S10) does not detect that the knurled roller is at the upper position when the pressurization of stack exit movement is finished.

Code: CC94
Description: Fan motor abnormality
Causes: Fan motor abnormality MJ-1042
Troubleshooting Guides: Fan motor (M9)
The turning ON of the fan locking signal is detected consistently after the specified time*. * A locking signal is not monitored from the start driving the motor until the specified time has passed.

Code: CD40
Description: Waste toner box full error
Causes: Copy Process related service call
Waste toner box full is detected.
Troubleshooting Guides: Waste toner box
1. Replace the waste toner box with a new one.
2. Turn the power OFF and then back ON.

Code: CDE0
Description: Paddle motor abnormality
* You receive a [CDE0] error when the [ED15] error occurs three times in succession or during the initial operation.
Causes: Finisher related service call
Paddle motor abnormality: The paddle motor is not rotating or the paddle is not rotating normally.
Troubleshooting Guides: MJ-1109/1110
Paddle IRotate the paddle. Fix any mechanical problem.
Paddle motor (M3) Check the connectors and harnesses between the paddle motor (M3) and the finisher control PC board (CN16).

Code: CE00
Description: Punch communication error
Causes: Finisher related service call
Communication error between finisher and punch unit: Communication error between finisher controller PC board and punch controller PC board
Troubleshooting Guides: MJ-1109/1110 (When MJ-6105 is installed)
Hole punch control PC board (HP
• Check the connectors and harnesses between the hole punch control PC board (HP) and the finisher control PC board.
• Board check

Code: CE10
Description: Image quality sensor abnormality (OFF level)
Causes: Image control related service call
Image quality sensor abnormality (OFF level): The output value of this sensor is out of a specified range when sensor light source is OFF.
Troubleshooting Guides: Image quality sensor Connector check
LGC board • Connector check (CN309, J620, J624) • Check the harnesses between the LGC board and the image quality sensor. • Check the harnesses between the LGC board and the switching power supply.

Code: CE20
Description: Image quality sensor abnormality
Causes: Image control related service call
Image quality sensor abnormality (no pattern level): The output value of this sensor is out of a specified range when the image quality control test pattern is not formed.
Troubleshooting Guides: 1 • Check the image quality sensor detection value (FS-05-2757). • Is the value of FS-05-2757-0 ‘0’, and is the value of FS-05- 2757-1 ‘255’? Yes 9 No 2
2 • Is the transfer belt or the transfer belt unit securely installed? • Are there any abnormal stains (cleaning defects), large scratches or breaking on the transfer belt surface? • Are the drum and the transfer belt rotating smoothly? • Is the transfer belt tight? Yes 6 No 3
3 Transfer belt unit Check if the transfer belt unit is securely installed. Correct it if not. 4
4 Transfer belt Check if any toner image remains on the transfer belt surface. If any, check the installation status of the TBU cleaner unit. If there is any abnormality, correct it, and clean the transfer belt.
5 Drum and transfer belt Check if the drum and the transfer belt are properly operated. (ON: FS-03-101 / OFF: FS-03-151) If the transfer belt rotates normally, check if any abnormal stains (cleaning defects), large scratches or breaking are on the surface of transfer belt by making full rotation of transfer belt. Replace the transfer belt if any. Check if the transfer belt is loose or heaving, and correct it if needed. If they are not rotating normally, check if their drive gears are damaged or if they contact the equipment. Correct it if needed.
6 • Is the sensor shutter of the image quality sensor opening or closing normally? Or is it normal without any damage? • Is the sensor surface of the image quality sensor clean? Yes 9 No 7
7 Sensor unit Take off the transfer belt unit so that you can see the sensor unit.
8 Sensor shutter • Check if the sensor shutter is opening or closing normally. (Opening: 03-125 / Closing: 03- 175) If the sensor shutter is not opening or closing, check if it is damaged or there is any abnormality in the sensor shutter solenoid. Notes: If the shutter is opened (FS-03- 125), close the shutter (FS-03- 175). • Check the connector and the harness between the sensor shutter solenoid and the LGC board. (LGC CN309 9-10pin, J620, J622) • Slide the sensor shutter so that the sensor surface can be seen. Clean the sensor surface with a cotton swab or a soft cloth. Clean the area around the sensor (e.g.: sensor shutter) if it is stained, so that the sensor surface does not become dirty. 18*
9 Image quality sensor Check the connectors and harnesses between the LGC board (CN309) and the image quality sensor.
10 • Is +5V power supply voltage normally supplied to the image quality sensor? • Is +5V voltage normally output by the CN309 5pin on the LGC board? 11
11 LGC board • Check if +5V voltage is output by the terminal (25/35ppm: TP32, 45/ 50ppm: TP13) on the LGC board. • Check if the supply harness between the switching power supply and the LGC board is open circuited, damaged or disconnected. 18*
12 Set the values of ‘Image quality closed-loop control / Contrast voltage (FS-08-2486)’ to ‘0’ (Invalid).
13 Perform “Enforced performing of image quality open-loop control (FS-05-2740)”.
14 Output the image quality control test pattern (FS-04-270) more than one time and the list print (FS-30- 101). Is the image normal? Yes 16 No 15
15 Abnormal image Correct the abnormal image. Blank print, Solid print, White banding, Color banding, White spots, Poor transfer, Uneven image density, Faded image (low density), Uneven light distribution, Blotched image. Notes: Blank print: including when one of the YMCK colors is not printed. 17
16 Replace the image quality sensor or the LGC board.
17 Set the values of “Image quality closed-loop control / Contrast voltage (FS-08-2486)” to “1” (Valid).
18 Perform ‘Forced performing of image quality closed-loop control (FS-05-2742)’ and make sure it is completed normally. (Error [CE10], [CE20] and [CE40] do not appear.) Yes 20 No 19
19 Check and correct it accordingly.
20 Perform ‘Automatic gamma adjustment’.
21 Reset all of the values in the codes “Abnormality detection count (Y/M/ C/K) Display/0 clearing (FS-08- 2528 to FS-08-2531)”.
22 High-voltage transformer Check if the high-voltage transformer is damaged or abnormal.

Code: CE40
Description: Image quality control test pattern abnormality
Causes: Image control related service call
Image quality control test pattern abnormality: The test pattern is not formed normally.
Troubleshooting Guides: 1 Check if there is any abnormality on the hand grips and rods of the main charger cleaner. Correct if there is.
2 Check if the drum is rotated properly by turning the gear of the drum cleaner unit. Correct the auger and the surrounding hardware if not.
3 Laser optical unit • Check the connectors and harnesses between the LGC board and the laser optical unit. (25/30/ 35ppm: CN317, CN319, CN204, CN205, CN206, CN207, CN208, CN209, 45/50ppm: CN317, CN318, CN319, CN210, CN211, CN212, CN213, CN214, CN215, CN216, CN202) • Check if there is any stain or scratch on the laser optical unit. Clean or correct if there is.
4 Check if there is any stain on the image quality sensor (Rear).
5 Check if the sensor shutter is working properly.
6 Transfer belt Check if the transfer belt is installed in the transfer belt unit properly. Check if the transfer belt is loose or heaving, and correct it if needed. Check if the transfer belt unit is installed in the equipment properly. Check if the transfer belt is properly operated. (ON: FS-03-101 / OFF: FS- 03-151) If the transfer belt rotates normally, check if any abnormal stains (cleaning defects), large scratches or breaking are on the surface of transfer belt by making full rotation of transfer belt. Replace the transfer belt if any. If the transfer belt is not rotating normally, check if the drive gears are damaged or if it contacts the equipment or if the transfer belt cleaning unit is normal. Correct it if needed.
7 Check if any of the springs for supplying power to the transfer belt unit is deformed. Replace the spring if it is deformed.
8 Use “Image quality control abnormal detection counter Y to K display/0 clearing (FS-08-2528 to 2531)” to check the abnormal occurring condition for each color.
9 Check the first pattern detection value for each color of image quality sensor detection value (FS- 05-2758-2 to 5), and identify the color of unit which causing test pattern abnormality. Identify the color of unit by check the value which exceeds ‘600’. (Sub-code 2: Y, 3: M, 4: C, 5: K) If the detected value of K is normal but that for only Y, those for Y and M, or those for Y, M and C is abnormal, perform the following procedure. -> Check that the phenomenon can be recovered by replacing the 1st transfer contact/release clutch or the 1st transfer roller status detection sensor.
10 Check if the developer unit identified in step 9 has been installed properly. Visually check the installation and assembly status of the developer unit, and correct it if there is any abnormality. 17*
11 Set the values of ‘Image quality closed-loop control / Contrast voltage (FS-08-2486)’ to ‘0’ (Invalid).
12 Perform ‘Enforced performing of image quality open-loop control (FS-05-2740)’.
13 Output several number of sheets of the image quality control test pattern (FS-04-270) and the list print (FS-30-101), and check the pattern of the color identified in step 9. Is the image normal? Yes 15 No 14
14 Abnormal image Correct the abnormal image. Blank print, Solid print, White banding, Color banding, White spots, Poor transfer, Uneven image density, Faded image (low density), Uneven light distribution, Blotched image. Notes: • Refer to the each troubleshooting for the image. • Blank print: including when one of the YMCK colors is not printed.
15 Replace the image quality sensor or LGC board.
16 Set the values of “Image quality closed-loop control / Contrast voltage (FS-08-2486)” to “1” (Valid).
17 Perform “Forced performing of image quality closed-loop control (FS-05-2742).” Is it completed normally? Yes 19 No 18
18 Check and correct it accordingly.
19 Perform ‘Automatic gamma adjustment’.
20 Clear all “Image quality control abnormal detection counter Y to K display/0 clearing (FS-08-2528 to 2531)”.
21 EPU Has the developer unit (Y, M, C, K) been installed securely? Press the slanted line portion of the developer unit until a click sound is heard.

Code: CE41
Description: Image quality TRC control test pattern abnormality
Causes: Image control related service call
The image quality TRC control test pattern is not printed normally.
Troubleshooting Guides: 1 Change the setting of the image quality TRC control to ‘Disabled’. Set the values of FS-08-2600 and FS-08- 8103 to ‘0’. 2
2 Output several number of sheets of the image quality control test pattern (FS-04- 270) and the list print (FS- 30-101), and check the pattern of each color. Is the image normal? YES 3 NO • Check if process units and developer units are properly installed. • Check if there is any scattered toner or developer material around the laser optical unit, clean it if there is any. • Correct the problem by referring to ‘Troubleshooting for the Image’.
3 Change the setting of the image quality TRC control to ‘Enabled’. Set the values of FS-08-2600 and FS-08- 8103 to ‘1’.
4 Perform the automatic gamma adjustment. If the adjustment is normally finished, this is the end of the procedure. If the error CE41 still occurs, proceed to step 5.
5 4.Check if the harness between the connector CN131 on the SYS board and the connector CN330 on the LGC board is disconnected or open circuited. Correct if so. 6
6 6.Check if the conductor patterns on the SYS board and the LGC board are short circuited or open circuited. 7
7 7.If no abnormality is found in steps 5 to 6 above, replace the SYS board. 8
8 8.Perform automatic gamma adjustment. If the adjustment is normally finished, this is the end of the procedure. If the error CE41 still occurs, proceed to step 9.
9 Reinstall the removed SYS board and then replace the LGC board. Perform automatic gamma adjustment after the board is replaced.

Code: CE50
Description: Temperature/humidity sensor abnormality
Causes: Image control related service call
Temperature/humidity sensor abnormality: The output value of this sensor is out of a specified range.
Troubleshooting Guides: Temperature/humidity sensor
Check the connectors and harnesses between the temperature/ humidity sensor and LGC board (CN325).

Code: CE70
Description: Drum drive switching abnormality
Causes: Image control related service call
Drum drive switching abnormality: The drum switching detection sensor (S11) is not turned ON after the drum motor was rotated for a specified period of time.
Troubleshooting Guides: 1 Is the drum switching motor (M3) operating properly? (Perform the output check: FS-03-240) Yes 7 No 2
2 Drum switching motor (M3) Check the connector of the motor. (J653)
3 Drum switching detection sensor (S11) Sensor check
4 LGC board • Connector check (CN327) • Board check
5 Is the drum TBU drive unit [1] installed properly? Install the drum TBU drive unit [1] properly.
6 Check that there is no friction or abnormality by pushing the protrusion [2] of the drive switching cam and the one [3] for the developer/paper feeding drive switching cam while the drum TBU drive unit [1] is removed. • If there is any foreign matter in the unit, remove it. • If the slide area spring [4] in the unit is deformed or is not attached properly, correct it. • Apply grease (Molykote EM-30L) to the slide area of the switching cam
7 Is the drum switching detection sensor (S11) working? (Perform the input check: FS-03-[ALL]OFF/ [8]/[G] (Highlighted in the black mode)) Yes 10 No 8
8 Drum switching detection sensor (S11) • Sensor, connector, joint connector check • Check if there is any foreign matter such as grease in the detection area of the drum switching detection sensor.
9 LGC board • Connector check (CN327) • Board check
10 Is the drum switching motor assembled in the drum drive unit able to be rotated smoothly by hand? Yes 12 No 11
11 Drum switching motor (M3) • While reinstalling the drum switching motor, push it so that its gear will slightly move away from the engaging gear. • Check the bracket in which the drum switching motor is installed. If it is deformed, replace it.
12 Is the drum switching guide able to be moved smoothly by hand after the drum switching motor has been removed? Yes 14 No 13
13 Drum switching motor (M3) Check if the slide area (guide, plate) of the drum switching guide is deformed or any foreign matter is attached to it. (Replace it if there is.)
14 LGC board Board check

Code: CE90
Description: Drum thermistor abnormality
Causes: Image control related service call
Drum thermistor abnormality: The output value of the drum thermistor is out of a specified range.
Troubleshooting Guides: Drum thermistor
• Thermistor check (Perform the input check: FS-03-[F1]ON/ [3]
• Connector check (J638, J637)
• Harness check
LGC board
• Connector check (CN312)

Code: CF10
Description: Communication module writing failure
Causes: Finisher related service call
Communication module writing failure.
Troubleshooting Guides: Finisher • Check if the harness connecting the equipment and the finisher control PC board is disconnected or open circuited. • Check if the conductor pattern on the finisher controller PC board is open circuited or short circuited. • Update the finisher firmware.
LGC board • Check if the harness connecting the finisher and the LGC board on the equipment is disconnected or open circuited. • Connector check • Check if the conductor pattern on the LGC board is open circuited or short circuited.

Code: E010
Description: Jam not reaching the exit sensor
Causes: Paper transport jam
Troubleshooting Guides: Paper jamming immediately after the removal and installation of the transfer belt unit. Transfer belt unit Check if the transfer belt unit is installed properly.
Paper separation failure at separation guide in the Fuser Unit
Fuser unit • Paper transport check • Check the gap between the separation guide and fuser belt.
Drawer Check that paper is not skewed in the side guides of the drawer.
Leading edge margin Adjust the margin with FS-05-4402 (Leading edge position adjustment) to ‘Color: 5.5 mm’. Widen the margin if needed. (Specification Black: 4.2 mm / Color: 5 mm) • Use A3/LD paper • It is easy to check skew with a copy of a solid image (about 10 mm on its leading edge).
Paper jamming at separation finger in the Fuser Unit. Fuser unit Clean the separation finger. Check if the fingers or springs of the separation finger are securely attached. Replace the separation finger.
The leading edge of paper has no scratches and the paper stops before being fused.
Fuser unit Check that the pressure release screw of the pressure roller is securely tightened and pressure is properly applied.
Transfer belt Replace the transfer belt. Replace the transfer belt unit.
Paper folded in one side and fused during duplex printing Check if toner adheres to the fuser entry guide. Clean it if needed.
Exit sensor • Sensor check (Perform the input check: FS-03- [ALL]OFF/[9]/[C]) • Actuator check • Connector check • Harness check
LGC board • Board check • Connector check (CN329, CN306, CN316, CN327, CN305) • Harness check
PFC board • Board check • Connector check (CN452, CN465) • Harness check
Aligning amount If the aligning amount is too small, a skew, an image dislocation in the feeding direction, E010 (a paper jam occurring between the registration pass sensor and the paper clinging detection sensor) may happen. If the aligning amount is too large, on the other hand, an abnormal noise (paper-folding noise) or actual paper folding may occur. Confirm that the value of the aligning amount is appropriate.

Code: E011
Description: Paper jam caused by clinging to the transfer belt (Paper not reached the paper clinging detection sensor)
Causes: Other paper jam
Troubleshooting Guides: Paper jamming immediately after the removal and installation of the transfer belt unit. Transfer belt unit Check if the transfer belt unit is installed properly.
Paper stop jam at transfer belt Drawer Check if paper is folded at the leading edge.
No scratches on the paper leading edge Drawer Check if paper is folded at the leading edge. Check that paper is not skewed in the side guides of the drawer. Process unit Clean the process unit or replace it. Paper clinging detection sensor Clean the sensor
PFC board • Board check • Connector check (CN452, CN451, CN465) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
Paper clinging detection sensor • Sensor check (Perform the input check: FS-03- [ALL]OFF/[9]/[E]) • Connector check (CN451, J693, J698, J699) • Harness check
Check of the 2nd transfer roller connection Check that the 2nd transfer roller shaft is securely grounded via the ADU rear frame (metal plate). • Check if the spring is deformed. • Check if the bearing and the spring contact properly.
Change of the 2nd transfer bias If the leading edge of paper clings to the 2nd transfer roller and causes paper jamming, change the 2nd transfer roller bias correction factor of the leading/trailing edge of the paper. (The larger the value, the smaller the transfer voltage of the leading/trailing edge of the paper.) Codes to be changed (Initial value of the transfer bias of the leading edge of the paper: 0) • Color mode print (top side): FS-05-2938-* • Color mode print (back side): FS-05-2939-* • Black mode print (top side): FS-05-2940-* • Black mode print (back side): FS-05-2941-* Sub codes:* → Plain paper: 0, Thick paper 1: 1, Thick paper 2: 2, Thick paper 3: 3, Overhead transparencies: 4, Special paper 1: 5, Special paper 2: 6, Recycled paper: 7, Thick paper 4: 8, Thin paper: 9, Envelope: 10, Special paper 3: 11 Notes: After these codes are changed, perform solid duplex-printing and check that there is no faint or void image on the leading/trailing edge of the paper.
Aligning amount If the aligning amount is too small, a skew, an image dislocation in the feeding direction, E011 (a paper jam occurring between the registration pass sensor and the paper clinging detection sensor) may happen. If the aligning amount is too large, on the other hand, an abnormal noise (paper-folding noise) or actual paper folding may occur. Confirm that the value of the aligning amount is appropriate.

Code: E013
Description: Jam not reaching transport sensor after paper alignment at the registration roller
Causes: Other paper jam
Troubleshooting Guides: Paper stop jam at Registration roller
Registration pass sensor • Sensor check (Perform the input check: FS-03- [ALL]OFF/[9]/[F]) • Connector check (CN309, J620, J621) • Harness check
Drawer Check if any damage is at the leading edge. Check if paper is folded at the leading edge.
Drive unit, Rollers • Drive unit check • Gear check • Roller check • Registration motor check (Perform the input check: FS-03-108/158Åj • Harness check
Developer unit Replace the Developer unit.
Aligning amount If the aligning amount is too small, a skew, an image dislocation in the feeding direction, E013 (a paper jam occurring between the registration pass sensor and the paper clinging detection sensor) may happen. If the aligning amount is too large, on the other hand, an abnormal noise (paper-folding noise) or actual paper folding may occur. Confirm that the value of the aligning amount is appropriate.
PFC board • Board check • Connector check (CN465) • Harness check
LGC board • Board check • Connector check (CN309) • Harness check
Registration sensor • Sensor check (Perform the input check: FS-03- [ALL]OFF/[9]/[A]) • Connector check (CN458, J659, J660) • Harness check

Code: E020
Description: Stop jam at the exit sensor
Causes: Paper transport jam
Troubleshooting Guides: Paper jamming at separation finger in the Fuser Unit. Fuser unit Clean the separation finger. Check if the fingers or springs of the separation finger are securely attached. Replace the separation finger.
Paper separation failure at separation guide in the fuser unit
Fuser unit • Paper transport check • Check the gap between the separation guide and fuser belt.
Drawer Check that paper is not skewed in the side guides of the drawer.
Leading edge margin Adjust the margin with FS-05-4402 (Leading edge position adjustment) to ‘Color: 5.5 mm’. (Specification Black: 4.2 mm / Color: 5 mm) • Use A3/LD paper • It is easy to check skew with a copy of a solid image (about 10 mm on its leading edge).
Scratches on the leading edge of paper Check if toner adheres to the exit gate. Clean it if needed.
Paper stopped in the reverse section Reverse gate solenoid • Solenoid check (Perform the output check: FS- 03-222, 03-223) • Connector check (CN301, J609, J610) • Harness check
Self-diagnosis code Change the setting value of FS-08-4542 (Switching for incorrect size jam detection) from “1” (Disabled) to “0”(Enabled).
Exit sensor • Sensor check (Perform the input check: FS-03- [ALL]OFF/[9]/[C]) • Actuator check • Connector check • Harness check
LGC board • Board check • Connector check (CN329, CN306) • Harness check

Code: E030
Description: Power-ON jam
Causes: Other paper jam
Troubleshooting Guides: Sensor in the jamming area • Sensor check (Refer to the table below) • Connector check • Harness check
LGC board • Board check • Connector check • Harness check
Relation between the jamming area and the corresponding sensors/covers. (If a jam is occurring in the ADU, LCF or PFP, check the board in each unit.)
Registration area Jam access cover Registration sensor FS-03-[ALL]OFF/[9]/[A] Paper clinging detection sensor FS-03-[ALL]OFF/[9]/[E] Registration pass sensor FS-03-[ALL]OFF/[9]/[F] Feed sensor FS-03-[ALL]OFF/[9]/[B]
Exit area Fuser cover Exit sensor FS-03-[ALL]OFF/[9]/[C]
ADU ADU ADU entrance sensor FS-03-[ALL]OFF/[9]/[G] ADU exit sensor FS-03-[ALL]OFF/[9]/[H]
Bypass feed unit Side cover 2nd drawer feed sensor FS-03-[F3]ON/[4]/[D]
LCF LCF side cover LCF transport sensor FS-03-[F1]ON/[9]/[F]
PFP PFP side cover PFP upper drawer feed sensor FS-03-[F3]ON/[0]/[C] PFP lower drawer feed sensor FS-03-[F3]ON/[0]/[D]
Bridge unit Bridge unit Bridge unit transport sensor-1 (Entrance sensor) FS-03-[ALL]OFF/[0]/[A] Bridge unit transport sensor-2 (Exit sensor) FS-03-[ALL]OFF/[0]/[B]
Finisher Finisher door Sensors in the finisher

Code: E061 … E065
Description: [E061]Incorrect paper size setting for 1st drawer
[E062]Incorrect paper size setting for 2nd drawer
[E063]Incorrect paper size setting for PFP upper drawer
[E064]Incorrect paper size setting for PFP lower drawer
[E065]Incorrect paper size setting for bypass tray
Causes: Other paper jam
Troubleshooting Guides: If any paper remains in the equipment or drawer, remove it. Match the paper size of the drawer setting and the one in the drawer.
* Paper size detection is performed at the first sheet of paper when the drawer is opened or closed, or when the power of the equipment is turned ON.

Code: E090
Description: Image data delay jam
Causes: Image data to be printed cannot be prepared.
Troubleshooting Guides: Other • Remove the paper remained in front of the registration sensor) • Check if the error is cleared by turning the power OFF and then back ON.
SYS board • Connector check • Main memory check • Board check
LGC board • Connector check • Board check
HDD • Connector check • HDD check

Code: E091
Description: Motor on time-out jam
Causes: The equipment does not operate normally because abnormality occurred on an interface between the SYS board and engine firmware
Troubleshooting Guides: Other • Check if there is any paper in the equipment. Remove it if there is. • If the error still occurs, check the following.
Power Check if the error is cleared by turning the power OFF and then back ON.
SYS board • Connector check • Board check
LGC board • Connector check • Board check
HDD • Connector check • HDD check

Code: E0A0
Description: Image transport ready time-out jam
Causes: Other paper jam
Troubleshooting Guides: LGC board • Flat cable check (SYS board – LGC board) • Connector check (CN330) • Board check
SYS board • Flat cable check (SYS board – LGC board) • Connector check (CN131) • Board check

Code: E110
Description: ADU misfeeding (paper not reaching the registration sensor)
Causes: Paper transport jam
Troubleshooting Guides: Paper stop jam at the registration roller position Registration guide Check the registration guide. Replace it if needed.
Registration sensor • Sensor check (Perform the input check: FS-03- [ALL]OFF/[9]/[A]) • Connector check (J660, J659) • Harness check
PFC board • Board check • Connector check (CN450, CN452, CN458) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
ADU Check if the connector between the ADU and equipment is connected.

Code: E120
Description: Bypass misfeeding (paper not reaching the bypass feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: Bypass feed clutch • Clutch check (Perform the output check: FS-03-204) • Connector check (J696, J693, CN451) • Harness check
Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (J661, J659, CN458) • Harness check
PFC board • Board check • Connector check (CN458, CN451, CN452) • Harness check
LGC board • Board check • Connector check (CN323, CN451) • Harness check

Code: E130
Description: 1st drawer misfeeding (paper not reaching the 1st drawer feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (J661, J659, CN458) • Harness check
1st drawer feed clutch • Clutch check (Perform the output check: FS-03-201) • Connector check (J666, CN461) • Harness check
PFC board • Board check • Connector check (CN458, CN452, CN461) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E140
Description: 2nd drawer misfeeding (paper not reaching the 2nd drawer feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: 2nd drawer feed sensor • Sensor check (Perform the input check: FS-03-[F3]ON/[4]/[D]) • Connector check (J688, J686, CN455) • Harness check
2nd drawer feed clutch • Clutch check (Perform the output check: FS-03-202) • Harness check • Connector check (J676, CN461)
PFC board • Board check • Connector check (CN455, CN461, CN458, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E150
Description: PFP upper drawer misfeeding (paper not reaching the PFP upper drawer feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: PFP upper drawer feed sensor • Sensor check (Perform the input check: FS-03-[F3]ON/[0]/[C]) • Connector check (CN247, J959, J975) • Harness check
PFP upper drawer feed clutch • Clutch check (Perform the output check: FS-03-226) • Connector check (CN246, J960, J963) • Harness check
LGC board • Board check • Connector check (CN323, J700) • Harness check
PFC board • Board check • Connector check (CN459, CN464, CN455, J700) • Harness check
PFP board • Board check • Connector check (J959, CN241, CN246, CN247) • Harness check

Code: E160
Description: PFP lower drawer misfeeding (paper not reaching the PFP lower drawer feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: PFP upper drawer feed sensor • Sensor check (Perform the input check: FS-03-[F3]ON/[0]/[D]) • Connector check (CN247, J959, J976) • Harness check
PFP upper drawer feed clutch • Clutch check (Perform the output check: FS-03-228) • Connector check (CN246, J960, J962) • Harness check
LGC board • Board check • Connector check (CN323, J700) • Harness check
PFC board • Board check • Connector check (CN459, CN464, CN455, J700) • Harness check
PFP board • Board check • Connector check (J959, CN241, CN246, CN247) • Harness check

Code: E190
Description: LCF misfeeding (paper not reaching the LCF transport sensor)
Causes: Paper transport jam
Troubleshooting Guides: LCF transport sensor • Sensor check (Perform the input check: FS-03-[F1]ON/[9]/[F]) • Connector check (CN1, CN6, CN349) • Harness check
LCF feed clutch • Clutch check (Perform the output check: 03-209) • Connector check (CN1, CN6, CN349) • Harness check
LGC board • Board check • Connector check (CN323, J700) • Harness check
PFC board • Board check • Connector check (CN459, CN464, CN455, J700) • Harness check
LCF board • Board check • Connector check (CN1, CN6) • Harness check

Code: E200, E210, E270
Description: [E200] 1st drawer transport jam (not reaching the registration sensor)
[E210] 2nd drawer transport jam (not reaching the registration sensor)
[E270] Bypass transport jam (not reaching the registration sensor)
Causes: Paper transport jam
Troubleshooting Guides: Registration sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[A]) • Connector check (CN458, J659, J660) • Harness check
1st drawer feed clutch • Clutch check (Perform the output check: FS-03-201) • Connector check (CN461, J666) • Harness check
2nd drawer feed clutch • Clutch check (Perform the output check: FS-03-202) • Connector check (CN461, J676) • Harness check
Bypass feed clutch • Clutch check (Perform the output check: FS-03-204) • Connector check (CN451, J696, J693) • Harness check
Transport clutch (H) • Clutch check (Perform the output check: FS-03-230) • Connector check (CN461, J664) • Harness check
Transport clutch (L) • Clutch check (Perform the output check: FS-03-233) • Connector check (CN461, J665) • Harness check
PFC board • Board check • Connector check (CN458, CN461, CN451, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E220, E310
Description: [E220] 2nd drawer transport jam (not reaching the feed sensor)
[E310] PFP upper drawer transport jam (not reaching the feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: Bypass paper guide • Check if the bypass paper guide is warped. • Reassemble the bypass separation roller holder since it is possibly disengaged.
Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (CN458, J659, J661) • Harness check
Transport clutches (high speed) • Clutch check (Perform the output check: FS-03-230) • Connector check (CN461, J664) • Harness check
Transport clutches (low speed) • Clutch check (Perform the output check: FS-03-233) • Connector check (CN461, J665) • Harness check
PFC board • Board check • Connector check (CN461, CN452, CN458) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E300, E330, E3C0
Description: [E300] PFP upper drawer transport jam (not reaching the registration sensor)
[E330] PFP lower drawer transport jam (not reaching the registration sensor)
[E3C0] LCF transport jam (not reaching the registration sensor)
Causes: Paper transport jam
Troubleshooting Guides: Registration sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[A]) • Connector check (CN458, J659, J660) • Harness check
1st drawer feed clutch • Clutch check (Perform the output check: FS-03-201) • Connector check (CN461, J666) • Harness check
2nd drawer feed clutch • Clutch check (Perform the output check: FS-03-202) • Connector check (CN461, J676) • Harness check
Bypass feed clutch • Clutch check (Perform the output check: FS-03-204) • Connector check (CN451, J696, J693) • Harness check
Transport clutch (H) • Clutch check (Perform the output check: FS-03-230) • Connector check (CN461, J664) • Harness check
Transport clutch (L) • Clutch check (Perform the output check: FS-03-233) • Connector check (CN461, J665) • Harness check
PFC board • Board check • Connector check (CN458, CN461, CN451, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E320, E350, E3E0
Description: [E320] PFP upper drawer transport jam (not reaching the 2nd drawer feed sensor)
[E350] PFP lower drawer transport jam (not reaching the 2nd drawer feed sensor)
[E3E0] LCF transport jam (not reaching the 2nd drawer feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: 2nd drawer feed sensor • Sensor check (Perform the input check: FS-03-[F3]ON/[4]/[D]) • Connector check (CN455, J686, J688) • Harness check
PFC board • Board check • Connector check (CN459, CN455, J700) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E340, E3D0
Description: [E340] PFP lower drawer transport jam (not reaching the feed sensor)
[E3D0] LCF transport jam (not reaching the feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: Bypass paper guide • Check if the bypass paper guide is warped. • Reassemble the bypass separation roller holder since it is possibly disengaged.
Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (CN458, J659, J661) • Harness check
Transport clutches (high speed) • Clutch check (Perform the output check: FS-03-230) • Connector check (CN461, J664) • Harness check
Transport clutches (low speed) • Clutch check (Perform the output check: FS-03-233) • Connector check (CN461, J665) • Harness check
PFC board • Board check • Connector check (CN461, CN452, CN458) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E360
Description: PFP lower drawer transport jam (not reaching the PFP upper drawer feed sensor)
Causes: Paper transport jam
Troubleshooting Guides: PFP upper drawer feed sensor • Sensor check (Perform the input check: FS-03-[F3]ON/[0]/[C]) • Connector check (CN247, J959, J975) • Harness check
PFP transport clutch • Clutch check (Perform the output check: 03-225) • Connector check (CN241, CN247, J957) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
PFC board • Board check • Connector check (CN459, CN455, J700) • Harness check
PFP board • Board check • Connector check (CN241, CN247) • Harness check

Code: E410
Description: Front cover open jam
Causes: Cover open jam
Troubleshooting Guides: Switching regulator • Is the voltage of 24V being supplied from the power supply unit? (Perform the input check: FS-03-[ALL]OFF[7]/[D]) • Connector check (CN512) • Fuse check (F201, F202, F203)
High-voltage transformer • Check if the high-voltage transformer (HVT) is installed properly. • Board check • Connector check • Harness check
LGC board • Board check • Connector check (CN314, CN320, CN321, CN310) • Harness check
Front cover switch • Switch check (Perform the input check: FS-03-[ALL]OFF/[7]/[C]) • Connector check (CN310, J613, J713) • Harness check

Code: E420
Description: PFP side cover open jam
Causes: Cover open jam
Troubleshooting Guides: PFP side cover opening/ closing switch • Is the PFP side cover opening/closing switch working? (Perform the input check: FS-03-[F3]ON/[0]/[A]) • Connector check (CN247, J959, J974) • Harness check
PFP board • Board check • Connector check (CN241, CN247) • Harness check
PFC board • Board check • Connector check (CN459, CN452, J700) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E430
Description: ADU opened during printing
Causes: ADU open jam
Troubleshooting Guides: Side cover switch • Is the switch working? (Perform the input check: FS-03-[ALL]OFF[7]/[A]) • Connector check (CN307, J606) • Harness check
LGC board • Board check • Connector check (CN307) • Harness check

Code: E440
Description: Jam access cover open jam
Causes: Cover open jam
Troubleshooting Guides: Jam access cover opening/ closing switch • Is the jam access cover opening/closing switch working? (Perform the input check: FS-03-[F3]ON/[4]/[A]) • Connector check (CN455, J686, J687) • Harness check
PFC board • Board check • Connector check (CN455, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E450
Description: LCF side cover open jam
Causes: Cover open jam
Troubleshooting Guides: LCF side cover opening/ closing switch • Is the switch working? (Perform the input check: FS-03-[F1]ON/[9]/[A]) • Connector check (CN7, CN70) • Harness check
LCF board • Board check • Connector check (CN7, CN1) • Harness check
PFC board • Board check • Connector check (CN452, CN459, J700, CN464) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: E480
Description: Bridge unit open jam
Causes: Cover open jam
Troubleshooting Guides: Bridge unit cover opening/ closing detection sensor • Is the sensor working? (Perform the input check: FS-03-[ALL]OFF/[7]/[B]) • Connector check (J607) • Harness check
LGC board • Board check • Connector check (CN307) • Harness check

Code: E490
Description: Job separator cover has opened during printing
Causes: Cover open jam
Troubleshooting Guides: JSP cover switch • Is the JSP cover switch working? (Perform the input check: FS-03-[ALL]OFF[7]/[B]) • Connector check (CN260, CN261) • Harness check
LGC board • Board check • Connector check (CN307, J607) • Harness check

Code: E510
Description: ADU transport stop jam
Causes: Paper transport jam
Troubleshooting Guides: Reverse sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[D]) • Connector check (J703, CN421) • Harness check
ADU entrance sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[G]) • Connector check (J692, CN421) • Harness check
Reverse motor • Motor check (Perform the output check: FS-03-121/171) • Connector check (CN301, J609, J611) • Harness check
LGC board • Connector check (CN323, CN301) • Harness check • Board check
PFC board • Board check • Connector check (CN450, CN452) • Harness check
ADU board • Connector check (CN420, CN421, CN422, J689) • Harness check • Board check
Reverse roller Roller check (attrition, deformation, deterioration)
Upper exit roller Roller check (attrition, deformation, deterioration)

Code: E520
Description: Stop jam in the ADU
Causes: Paper transport jam
Troubleshooting Guides: ADU entrance sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[H]) • Connector check (J693, CN421) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
PFC board • Board check • Connector check (CN450, CN452) • Harness check
ADU board • Board check • Connector check (J689, CN420, CN421, CN422) • Harness check
ADU motor • Motor check (Perform the output check: FS-03-110/160) • Connector check (J691, CN422) • Harness check • Bracket check

Code: E550
Description: Paper remaining jam on the transport path
Causes: Paper remaining on the transport path when printing is finished (caused by a multiple paper feeding)
Troubleshooting Guides: 1 Jamming transport path Open the cover of the unit/area whose picture is flashing on the control panel and remove any paper on the transport path.
2 Feed or transport roller possibly causing multiple feeding Check the feed roller.
3 Sensor in the jamming area • Sensor check (Refer to the table below) • Harness check • Connector check
4 LGC board • Harness check • Connector check • Board check
Notes: If the jam is occurring in the ADU, PFP, or LCF, check the board in each unit.

Code: E551, E552
Description: [E551] Paper remaining jam on the transport path (when a service call occurs)
[E552] Paper remaining jam on the transport path (when the cover is closed)
Causes: Paper remaining on the transport path when printing is finished (when a service call occurs) (E551) Paper remaining on the transport path when printing is finished (when the cover is closed) (E552)
Troubleshooting Guides: 1 Jamming transport path Open the cover of the unit/area whose picture is flashing on the control panel and remove any paper on the transport path.
2 Sensor in the jamming area • Sensor check (Refer to the table below) • Harness check • Connector check
3 LGC board • Harness check • Connector check • Board check
Notes: If the jam is occurring in the ADU, LCF or PFP, check the board in each unit.

Code: E570
Description: Jam not reaching the reverse sensor
Causes: Paper transport jam
Troubleshooting Guides: Reverse sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[D]) • Connector check (CN421, J703) • Harness check
Fuser motor • Motor check (Perform the output check: FS-03-113) • Connector check (J603) • Harness check
Reverse motor • Motor check (Perform the output check: FS-03-121/171) • Connector check (CN301, J609, J611) • Harness check
Reverse gate solenoid • Solenoid check (Perform the output check: FS-03-222/223) • Connector check (CN301, J609, J610) • Harness check
LGC board • Connector check (CN301, CN323) • Harness check • Board check
PFC board • Board check • Connector check (CN450, CN452) • Harness check
ADU board • Board check • Connector check (J689, CN420, CN421, J703) • Harness check
Reverse roller Roller check (attrition, deformation, deterioration)
Fuser unit Check if the adjustment value for the tilting of the fuser unit is aligned to the uppermost line of the scale.

Code: E580
Description: Stop jam at the reverse section
Causes: Paper transport jam
Troubleshooting Guides: Reverse sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[D]) • Connector check (CN421, J703) • Harness check
Reverse motor • Motor check (Perform the output check: FS-03-121/171) • Connector check (CN301, J609, J611) • Harness check
Reverse gate solenoid • Solenoid check (Perform the output check: FS-03-222/223) • Connector check (CN301, J609, J610) • Harness check
LGC board • Connector check (CN301, CN323) • Harness check • Board check
PFC board • Board check • Connector check (CN450, CN452) • Harness check
ADU board • Board check • Connector check (J689, CN420, CN421, J703) • Harness check
Reverse roller Roller check (attrition, deformation, deterioration)
Upper exit roller Roller check (attrition, deformation, deterioration)

Code: E712
Description: Jam not reaching the original registration sensor
Causes: RADF jam
Troubleshooting Guides: Pickup roller Feed roller Separation roller Clean them if they are stained.
Original registration sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[H]) • Connector check (CN74, J88, J86) • Harness check
RADF board • Board check • Connector check (CN74) • Harness check

Code: E714
Description: Feed signal reception jam
Causes: RADF jam
Troubleshooting Guides: Empty sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[B]) • Lever check • Connector check (CN75, J92, J96) • Harness check
RADF board • Board check • Connector check (CN75) • Harness check

Code: E717
Description: Original not reaching the DSDF original feed sensor jam
Causes: The original does not reach the DSDF feed sensor even though original feeding has started.
Troubleshooting Guides: DSDF feed sensor • Check if the DSDF feed sensor is working properly. (Perform the input check: FS-03-[F2]ON/[8]/[E]) • Replace the DSDF feed sensor.
Connector Check if the connectors (J974, J950 and CN74) on the DSDF control PC board are disconnected from the DSDF feed sensor or the harnesses are open circuited. Correct if any.
DSDF feed motor Check if the DSDF feed motor is working properly.
Connector Check if the connectors (J990 and CN77) on the DSDF control PC board are disconnected from the DSDF feed motor or the harnesses are open circuited. Correct if any.
DSDF control PC board Replace the DSDF control PC board.

Code: E718
Description: Original setting jam / Original tray lift abnormality
Causes: The original tray lift has been driven to raised or lowered and the DSDF tray lift upper limit sensor / DSDF tray lift lower limit sensor has not been turned ON within a specified time.
Troubleshooting Guides: • When a paper jam has occurred after an original is set, during original feeding, during the initial operation or when an original is pulled out
Malfunction • Check whether an operation to apply a load to the original tray has been performed while it is being raised or lowered. • Check if there is a foreign matter in the tray lifting section. If there is any, remove it, open and then close the cover to release the paper jam status. If there is none, take the following measure.
• When the original tray lift is being rising (When a paper jam has occurred after the original placed or during original feeding)
DSDF tray lift upper limit sensor There will be an abnormality in the DSDF tray lift upper limit sensor when an error occurs while the tray is rising. (Perform the output check: FS-03-[F3]ON/[6]/[E]) • Check if the sensor is damaged, the connector is disconnected or the harness is open circuited. If yes, replace any of them.
• When the original tray lift is being lowering (When a paper jam has occurred if an original is pulled out during the initial operation or the operation itself)
DSDF tray lift lower limit sensor There will be an abnormality in the DSDF tray lift lower limit sensor when an error occurs while the tray is lowering. (Perform the output check: FS-03-[F3]ON/[6]/[F]) • Check if the sensor is damaged, the connector is disconnected or the harness is open circuited. If yes, replace any of them.
• When the rising or lowering of the original tray lift does not work
DSDF tray-up clutch There will be an abnormality in the DSDF tray-up clutch if it does not work. • Check if the clutch is damaged, the connector is disconnected or the harness is open circuited. If yes, replace any of them.
DSDF separation motor There will be an abnormality in the DSDF separation motor if it does not work. (Perform the output check: FS-03-291/292) • Check if the motor is damaged, the connector is disconnected or the harness is open circuited. If yes, replace any of them.
• All
DSDF control PC board Check that there is no abnormality on the DSDF control PC board when operation failure has occurred in the DSDF tray lift upper limit sensor, DSDF tray lift lower limit sensor, DSDF tray-up clutch or DSDF separation motor. If yes, replace any of them.

Code: E721
Description: Jam not reaching the read sensor
Causes: RADF jam
Troubleshooting Guides: All Registration sensor Read roller Clean the registration roller and the read roller if they are stained.
Read sensor • Sensor check (Perform the input check: FS-03- [F3]ON[7]/[G]) • Connector check (CN75, J94) • Harness check
RADF board • Board check • Connector check (CN75) • Harness check

Code: E722
Description: Jam not reaching the original exit/reverse sensor (during scanning)
Causes: RADF jam
Troubleshooting Guides: Read roller Clean the read roller if it is stained.
Original exit/reverse sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[E]) • Connector check (CN75, J93) • Harness check
RADF board • Board check • Connector check (CN75) • Harness check

Code: E724
Description: Stop jam at the registration sensor
Causes: RADF jam
Troubleshooting Guides: Registration roller Clean the registration roller if it is stained.
Registration sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[H]) • Connector check (CN74, J88, J86) • Harness check
RADF board • Board check • Connector check (CN74) • Harness check
Original width detection sensor-1 • Sensor check (Perform the input check: FS-03-[F3]ON[8]/[F]) • Connector check (CN74, J86, J89) • Harness check
Original width detection sensor-2 • Sensor check (Perform the input check: FS-03-[F3]ON[8]/[G]) • Connector check (CN74, J86, J90) • Harness check

Code: E725
Description: Stop jam at the read sensor
Causes: RADF jam
Troubleshooting Guides: Read roller Clean the read roller if it is stained.
Read sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[G]) • Connector check (CN75, J94) • Harness check
Original intermediate transport sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[F]) • Connector check (CN75, J94) • Harness check
RADF board • Board check • Connector check (CN75) • Harness check

Code: E726
Description: Transport/exit signal reception jam
Causes: RADF jam
Troubleshooting Guides: RADF board • Board check • Connector check • Harness check
SYS board • Board check • Connector check • Harness check
Switching power supply • Check if the 24V and 5V outputs of the switching power supply are normal. • Board check • Connector check • Harness check

Code: E727
Description: Original not reaching the DSDF read-in sensor-2 jam
Causes: The original does not reach the DSDF read-in sensor-2 after it has passed through the DSDF read-in sensor-1.
Troubleshooting Guides: Roller Clean the post-read roller-1 if it is stained.
Installation Check if the DSDF is installed properly.
DSDF read-in sensor-2 • Check if the DSDF read-in sensor-2 is working properly. (Perform the input check: FS-03-[F2]ON/[6]/[D]) • Replace the DSDF read-in sensor-2.
Connector Check if the connectors (J984, J956 and CN75) on the DSDF control PC board are disconnected from the DSDF read-in sensor-2 or the harnesses are open circuited. Correct if any.
DSDF control PC board Replace the DSDF control PC board.

Code: E729
Description: Original stopping at the DSDF read-in sensor-2 jam
Causes: The trailing edge of the original does not pass through the DSDF read-in sensor-2 after its leading edge has reached this sensor.
Troubleshooting Guides: Roller Clean the pre-read roller-2 if it is stained.
DSDF read-in sensor-2 • Check if the DSDF read-in sensor-2 is working properly. (Perform the input check: FS-03-[F2]ON/[6]/[D]) • Replace the DSDF read-in sensor-2.
Connector Check if the connectors (J984, J956 and CN75) on the DSDF control PC board are disconnected from the DSDF read-in sensor-2 or the harnesses are open circuited. Correct if any.
DSDF exit motor • Check if the DSDF exit motor is working properly. • Check if the connectors (J991 and CN77) on the DSDF control PC board are disconnected from the DSDF exit motor or the harnesses are open circuited. Correct if any.
DSDF control PC board • Replace the DSDF control PC board.

Code: E72A
Description: DSDF original scanning start time-out jam
Causes: Preparation of the page memory has not been completed within a specified time.
Troubleshooting Guides: Reproducing ability Release the paper jam and reattempt copying or scanning.

Code: E731
Description: Stop jam at the original exit/reverse sensor
Causes: RADF jam
Troubleshooting Guides: Exit roller Clean the exit roller if it is stained.
Stop jam at the original exit/ reverse sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[E]) • Connector check (J93, CN75) • Harness check
RADF board • Board check • Connector check (CN75) • Harness check

Code: E762
Description: Original remaining at the DSDF registration sensor jam
Causes: The DSDF registration sensor remains turned ON.
Troubleshooting Guides: Transport path Check if there is a paper or foreign matter in the transport path of the DSDF.
DSDF registration sensor • Check if the DSDF registration sensor is working properly. (Perform the input check: FS-03-[F2]ON/[7]/[H]) • Replace the DSDF registration sensor.
Connector Check if the connectors (J975, J950 and CN74) on the DSDF control PC board are disconnected from the DSDF registration sensor or the harnesses are open circuited. Correct if any.
DSDF control PC board Replace the DSDF control PC board.

Code: E769
Description: Original remaining at the DSDF feed sensor jam
Causes: The DSDF feed sensor remains turned ON.
Troubleshooting Guides: Connector Check if the connectors (J974, J950 and CN74) on the DSDF control PC board are disconnected from the DSDF feed sensor or the harnesses are open circuited. Correct if any.
DSDF feed sensor • Check if the DSDF feed sensor is working properly. (Perform the input check: FS-03-[F2]ON/[8]/[E]) • Replace the DSDF feed sensor.
DSDF control PC board Replace the DSDF control PC board.

Code: E770
Description: Original remaining at the DSDF original width detection sensor-1 jam
Causes: The DSDF original width detection sensor-1 remains turned ON.
Troubleshooting Guides: Connector Check if the connectors (J972, J950 and CN75) on the DSDF control PC board are disconnected from the DSDF original width detection sensor-1 or the harnesses are open circuited. Correct if any.
DSDF original width detection sensor-1 • Check if the DSDF original width detection sensor-1 is working properly. (Perform the input check: FS-03-[F2]ON/[8]/[F]) • Replace the DSDF original width detection sensor-1.
DSDF control PC board Replace the DSDF control PC board.

Code: E771
Description: Original remaining at the DSDF original width detection sensor-2 jam
Causes: The DSDF original width detection sensor-2 remains turned ON.
Troubleshooting Guides: Connector Check if the connectors (J973, J950 and CN75) on the DSDF control PC board are disconnected from the DSDF original width detection sensor-2 or the harnesses are open circuited. Correct if any.
DSDF original width detection sensor-2 • Check if the DSDF original width detection sensor-2 is working properly. (Perform the input check: FS-03-[F2]ON/[8]/[G]) • Replace the DSDF original width detection sensor-2.
DSDF control PC board Replace the DSDF control PC board.

Code: E774
Description: Original remaining at the DSDF read-in sensor-1 jam
Causes: The DSDF read-in sensor-1 remains turned ON.
Troubleshooting Guides: Roller Clean the post-read roller-1 if it is stained.
Connector Check if the connectors (J983, J956 and CN75) on the DSDF control PC board are disconnected from the DSDF read-in sensor-1 or the harnesses are open circuited. Correct if any.
DSDF read-in sensor-1 • Check if the DSDF read-in sensor-1 is working properly. (Perform the input check: FS-03-[F2]ON/[7]/[G]) • Perform the DSDF read-in sensor-1 automatic adjustment.
DSDF control PC board Replace the DSDF control PC board.

Code: E775
Description: Original remaining at the DSDF read-in sensor-2 jam
Causes: The DSDF read-in sensor-2 remains turned ON.
Troubleshooting Guides: Roller Clean the pre-read roller-2 if it is stained.
Connector Check if the connectors (J984, J956 and CN75) on the DSDF control PC board are disconnected from the DSDF read-in sensor-2 or the harnesses are open circuited. Correct if any.
DSDF read-in sensor-2 • Check if the DSDF read-in sensor-2 is working properly. (Perform the input check: FS-03-[F2]ON/[6]/[D]) • Replace the DSDF read-in sensor-2.
DSDF control PC board Replace the DSDF control PC board.

Code: E777
Description: Original remaining at the DSDF exit sensor jam
Causes: The DSDF exit sensor remains turned ON.
Troubleshooting Guides: Roller Clean the DSDF exit roller if it is stained.
Connector Check if the connectors (J985, J957 and CN75) on the DSDF control PC board are disconnected from the DSDF exit sensor or the harnesses are open circuited. Correct if any.
DSDF exit sensor • Check if the DSDF exit sensor is working properly. (Perform the input check: FS-03-[F2]ON/[7]/[E]) • Replace the DSDF sensor.
DSDF control PC board Replace the DSDF control PC board.

Code: E860
Description: RADF jam access cover open
Causes: RADF jam access cover open
Troubleshooting Guides: RADF jam access cover sensor • Switch check (Perform the input check: FS-03-[F3]ON[7]/[C]) • Connector check (CN75, J92, J97) • Harness check
RADF board • Board check • Connector check (CN75) • Harness check

Code: E870
Description: RADF open jam
Causes: RADF jam
Troubleshooting Guides: Platen sensor • Sensor check (Perform the input check: FS-03-[F3]ON[7]/[D]) • Connector check (CN121, J1003, J1004) • Harness check
LGC board • Board check • Connector check (CN121) • Harness check

Code: E910, E920
Description: [E910] Paper not reaching the bridge unit transport sensor-1
[E920] Paper stopping at the bridge unit transport sensor-1
Causes: Paper not reaching the bridge unit transport sensor-1
Paper stopping at the bridge unit transport sensor-1
Troubleshooting Guides: Paper separation failure at separation guide in the fuser unit
Fuser unit • Check the gap between the separation guide and the fuser belt. • Paper tranceport check
Drawer Check that paper is not skewed in the side guides of the drawer.
Leading edge margin Adjust the margin with FS-05-4402 (Leading edge position adjustment) to ‘Color: 5.5 mm’. Widen the margin if needed. (Specification Black: 4.2 mm / Color: 5 mm) • Use A3/LD paper • It is easy to check skew with a copy of a solid image (about 10 mm on its leading edge).
There are scratches on the leading paper edge Replace it if needed.Check if the guide is not deformed. Replace it if needed.
Bridge unit exit Check that Mylar on the bridge unit exit is not deformed. Replace it if needed. (E920)
Finisher Check if paper jamming occurs in the finisher.
Bridge unit transport sensor-1 (entrance sensor) • Sensor check (Perform the input check: FS-03- [ALL]OFF[0]/[A]) • Connector check (CN307, J607, J801) • Harness check
Bridge unit gate solenoid • Solenoid check (Perform the output check: FS- 03-232) • Connector check (CN307, J607, J801) • Harness check
LGC board • Board check • Connector check (CN307) • Harness check
Bridge unit • Does the transport roller of the bridge unit work when the fuser motor is rotated? (Perform the output check: FS-03-113/163) • Check the drive system of the equipment and bridge unit. • Check if the rollers in the lower exit roller, the pressure spring and the bridge unit are worn out.

Code: E930, E940
Description: [E930] Paper not reaching the bridge unit transport sensor-2
[E940] Paper stopping at the bridge unit transport sensor-2
Causes: Paper not reaching the bridge unit transport sensor-2
Paper stopping at the bridge unit transport sensor-2
Troubleshooting Guides: Bridge unit transport sensor-2 (exit sensor) • Sensor check (Perform the input check: FS-03-[ALL]OFF[0]/[B]) • Connector check (CN307, J607, J802) • Harness check
LGC board • Board check • Connector check (CN307) • Harness check
Bridge unit • Does the transport roller of the bridge unit work when the fuser motor is rotated? (Perform the output check: FS-03-113/163) • Check the drive system of the equipment and bridge unit. • Check if the rollers in the lower exit roller, the pressure spring and the bridge unit are worn out.

Code: E950, E951
Description: [E950] Jam not reaching the JSP feed sensor
[E951] Stop jam at the JSP feed sensor
Causes: Jam not reaching the job separator transport sensor
Stop jam at the job separator transport sensor
Troubleshooting Guides: 1 Open the JSP cover. Is there any paper on the transport path? Yes Remove the paper. No 2
2 Is the JSP feed sensor working? (Perform the input check in the test mode: FS-03-[ALL]OFF/ [0]/[A]) Yes 3 No • Check if the connector of the JSP feed sensor is disconnected. • Check if either of the connectors CN260 or CN262 on the JSP board is disconnected. • Check if the connector CN307 on the LGC board is disconnected. • Check if the relay connector J607 is disconnected. • Check if the connector pins are disconnected and the harnesses are open circuited. • Check if the conductor patterns on the JSP board and LGC board are short circuited or open circuited. • Replace the JSP feed sensor. • Replace the JSP board. • Replace the LGC board.
3 Replacing board • Replace the JSP board. • Replace the LGC board.

Code: E9F0
Description: Punching jam
Causes: Finisher jam (Punch section) Punching jam
Troubleshooting Guides: MJ-1042 (When MJ-6011 is installed)
Punch unit sliding motor abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Punch sliding unit home position sensor abnormality Measure the voltage on TP26 on the hole punch control PC board. Then check that the measured voltage is 1V or lower when not shielded and within the range of 5V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Paper detection sensor (lightreceiving/ light-emitting) (S24/ S25) Measure the voltage on 8 pin of CN6 on the hole punch control PC board. Then check that the measured voltage is 3.0V or higher when not shielded and 1.2 or lower when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Hole punch control PC board: CN3, CN4, CN5, CN6, CN7)
Hole punch control PC board abnormality If the error still occurs after replacing the sensor and the connector, replace the hole punch control PC board.
Finisher control PC board (FIN) abnormality Replace the finisher control PC board (FIN).
MJ-1109/1110 (When MJ-6105 is installed)
Paper Check if there is any paper on the transport path of the equipment and remove it if there is.
Punch motor (M3) • Motor check • Connector check • Harness check
Punch HP sensor (S4) • Sensor check • Connector check • Harness check
Punch sensor (S5) • Sensor check • Connector check • Harness check
Hole punch control PC board (HP) • Board check • Connector check • Harness check

Code: EA10
Description: 1st transport motor (M8) fault/ 2nd transport motor (M4) fault
Causes: Finisher jam (Finisher section) Paper transport delay jam
Troubleshooting Guides: MJ-1042
1st transport motor (M8) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN22)
2nd transport motor (M4) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN14)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor and the connector, exchange the finisher control PC board (FIN).

Code: EA10
Description: Transport delay jam (paper not inserted)
Causes: Paper jam in finisher section
Transport delay jam (paper not inserted)
Troubleshooting Guides: MJ-1109/MJ-1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Feeding sensor (S22) Check if there is a disconnection of the connector, incorrect installation or breakage of the feeding sensor (S22). If there is, reinstall the sensor correctly or replace it.
Transport path switching solenoid (SOL5) Check that the gap between the transfer guide surface and the upper surface of the flapper tip is in the acceptable range according to the status of the transport path switching solenoid (SOL5) (solenoid OFF: 1.5 to 2.1 mm, solenoid ON: 2.3 to 2.9 mm). If it is not, adjust it. Check the harness between the transport path switching solenoid (SOL5) and the finisher controller board (CN1). If there is any abnormality, correct it.
Entrance motor (M1) Check the harness between the entrance motor (M1) and the finisher controller board (CN17). If there is any abnormality, correct it.
Finisher control PC board (FIN) • Board check • Connector check (CN1, CN17) • Harness check

Code: EA20
Description: 1st transport motor (M8) fault/ 2nd transport motor (M4) fault
Causes: Finisher jam (Finisher section)
Paper transport delay jam
Troubleshooting Guides: MJ-1042
1st transport motor (M8) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN22)
2nd transport motor (M4) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN14)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor and the connector, exchange the finisher control PC board (FIN).

Code: EA20
Description: Paper transport stop jam (entrance sensor)
Causes: jam in finisher section Paper transport stop jam (entrance sensor)
Troubleshooting Guides: MJ-1109/1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Entrance sensor (S1) • Sensor check • Connector check • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8) • Harness check
Assist guide Check if the attachment position (height) of the assist guide is correct.

Code: EA21
Description: Paper size error jam (transport sensor)
Causes: Paper jam in finisher section
Paper size error jam (transport sensor) Paper size error jam (punch paper edge sensor)
Troubleshooting Guides: MJ-1109/1110
Paper • Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is. • Use paper accepted in the specifications.
Entrance sensor (S1) • Sensor check • Connector check • Harness check
Transport sensor (S2) • Sensor check • Connector check • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8) • Harness check

Code: EA22
Description: Paper size error jam (punch paper edge sensor)
Causes: Paper size error jam (transport sensor)
Paper size error jam (punch paper edge sensor)
Troubleshooting Guides: MJ-1109/1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Entrance sensor (S1) • Sensor check • Connector check • Harness check
Transport sensor (S2) • Sensor check • Connector check • Harness check
Paper position sensor (Hole punch unit) • Sensor check (S6-1, S6-2) • Connector check (CN1, CN4, CN5) • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8) • Harness check

Code: EA23
Description: Paper transport stop jam (transport sensor)
Causes: Paper jam in finisher section Paper transport stop jam (transport sensor)
Troubleshooting Guides: MJ-1109/MJ-1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Transport sensor (S2) • Sensor check • Connector check • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8) • Harness check

Code: EA24
Description: Paper transport stop jam (between entrance & transport sensor)
Causes: Paper jam in finisher section Paper transport stop jam (between entrance and transport sensor)
Troubleshooting Guides: MJ-1109/MJ-1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Pinch roller arm Check the position of pinch roller arm. If it is down, fix its mechanism.
Transport path switching solenoid (SOL5) • Check that the gap between the transfer guide surface and the upper surface of the flapper tip is in the acceptable range according to the status of the transport path switching solenoid (SOL5) (solenoid OFF: 1.5 to 2.1 mm, solenoid ON: 2.3 to 2.9 mm). If it is not, adjust it. • Check the harness between the transport path switching solenoid (SOL5) and the finisher controller board (CN1). If there is any abnormality, correct it.
Entrance sensor (S1) • Sensor check • Connector check • Harness check
Transport sensor (S2) • Sensor check • Connector check • Harness check
Entrance motor (M1) • Motor check • Connector check • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8, CN17) • Harness check

Code: EA25
Description: Stack exit motor (M5) abnormality
Causes: MJ-1042
Paper jam in finisher section Paper transport jam in the Finisher
Troubleshooting Guides: Stack exit motor (M5) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN14)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensor and connectors, exchange the finisher control PC board (FIN).

Code: EA25
Description: Paper transport stop jam (after paper stack exit)
Causes: MJ-1109/MJ-1110
Paper jam in finisher section Paper transport stop jam (after paper stack exit)
Troubleshooting Guides: Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Finishing tray paper detection sensor (S12) • Sensor check • Connector check (CN25) • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN25) • Harness check

Code: EA26
Description: Paper transport stop jam (stop command request)
Causes: MJ-1042
Paper jam in finisher section The equipment sends a stop signal during feeding.
Troubleshooting Guides: Finisher • Check if the harness connecting the equipment and the finisher control PC board is disconnected or open circuited. • Check if the conductor pattern on the finisher controller PC board is open circuited or short circuited. • Update the finisher firmware. • Replace the finisher control PC board.
LGC board • Check if the harness connecting the finisher and the LGC board on the equipment is disconnected or open circuited. • Connector check • Check if the conductor pattern on the LGC board is open circuited or short circuited. • Replace the LGC board.

Code: EA26, EA27
Description: [EA26] Paper transport stop jam (stop command request)
[EA27] Paper transport stop jam (paper not inserted)
Causes: MJ-1109/MJ-1110
Paper jam in finisher section [EA26] Paper transport stop jam (stop command request) [EA27] Paper transport stop jam (paper not inserted)
Troubleshooting Guides: Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Entrance sensor (S1) • Sensor check • Connector check (CN8) • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8) • Harness check

Code: EA28
Description: Paper transport stop jam (paper holder plate operation delay)
Causes: MJ-1109/MJ-1110
Paper jam in finisher section Paper transport stop jam (paper holder plate operation delay)
Troubleshooting Guides: Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Assist guide Is there any mechanical problem when the assist guide is rotated? If there is any mechanical problem, fix its mechanism.
Assist guide motor (M10) • Motor check • Connector check (CN10) • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN10) • Harness check

Code: EA29
Description: Paper transport stop jam (stack transport delay)
Causes: MJ-1109/MJ-1110
Paper jam in finisher section Paper transport stop jam (stack transport delay)
Troubleshooting Guides: Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Buffer tray guide Is there any mechanical problem when the buffer tray guide is opened and closed while the buffer roller is kept raised? If there is any mechanical problem, fix its mechanism.
Buffer tray guide motor (M2) • Motor check • Connector check (CN10) • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN8) • Harness check

Code: EA2A
Description: Paper transport jam in the Finisher (Entrance path – middle path sensor)
Causes: Paper jam in finisher section Paper transport jam in the Finisher (Entrance path – middle path sensor)
Troubleshooting Guides: MJ-1042
1st transport motor (M8) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
2nd transport motor (M4) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Middle path sensor (S7) abnormality Measure the voltage on TP84 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN6, CN14, CN22)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, replace the finisher control PC board (FIN).

Code: EA2B
Description: Paper transport jam in the Finisher (Middle path sensor)
Causes: Paper jam in finisher section Paper transport jam in the Finisher (Middle path sensor)
Troubleshooting Guides: MJ-1042
2nd transport motor (M4) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Middle path sensor (S7) abnormality Measure the voltage on TP84 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN6, CN14, CN22)not fall within the range mentioned, replace the sensor.
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, replace the finisher control PC board (FIN).

Code: EA2C
Description: Paper transport jam in the Finisher (Entrance path – sub-path sensor)
Causes: Paper jam in finisher section Paper transport jam in the Finisher (Entrance path – sub-path sensor)
Troubleshooting Guides: MJ-1042
1st transport motor (M8) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
2nd transport motor (M4) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Sub-path sensor (S8) abnormality Measure the voltage on TP85 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Stationary tray full detection sensor (S11) abnormality Measure the voltage on TP26 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN6, CN10, CN14, CN22)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, replace the finisher control PC board (FIN).

Code: EA2D
Description: Paper transport jam in the Finisher (Sub-path sensor)
Causes: Paper jam in finisher section Paper transport jam in the Finisher (Sub-path sensor)
Troubleshooting Guides: MJ-1042
2nd transport motor (M4) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor.
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Sub-path sensor (S8) abnormality Measure the voltage on TP85 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Stationary tray full detection sensor (S11) abnormality Measure the voltage on TP26 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN6, CN10, CN14, CN22)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, replace the finisher control PC board (FIN).

Code: EA2E
Description: Paper transport remaining jam in the Finisher (sub-path sensor)
Causes: Paper jam in finisher section Paper transport remaining jam in the Finisher (sub-path sensor)
Troubleshooting Guides: MJ-1042
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Sub-path sensor (S8) abnormality Measure the voltage on TP85 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Stationary tray full detection sensor (S11) abnormality Measure the voltage on TP26 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN6, CN10, CN22)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, replace the finisher control PC board (FIN).

Code: EA31
Description: Transport jam in Finisher
Causes: Paper jam in finisher section Paper transport remaining jam in the Finisher
Troubleshooting Guides: MJ-1042
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Middle path sensor (S7) abnormality Measure the voltage on TP84 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Sub-path sensor (S8) abnormality Measure the voltage on TP85 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V±5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN6, CN22)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, exchange the finisher control PC board (FIN).

Code: EA31
Description: Transport path paper remaining jam
Causes: Paper jam in finisher section Transport path paper remaining jam
Troubleshooting Guides: MJ-1109/1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Entrance sensor (S1) • Sensor check • Connector check (CN8) • Harness check
Feeding sensor (S22) • Sensor check (S22) • Connector check (CN1) • Harness check
Paper position sensor • Sensor check (S6-1, S6-2) • Connector check (CN1, CN4, CN5) • Harness check
Transport sensor (S2) • Sensor check • Connector check (CN8) • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN1, CN8) • Harness check

Code: EA32
Description: Finishing tray paper detection error
Causes: Paper jam in finisher section Exit paper remaining jam
Troubleshooting Guides: MJ-1042
Finishing tray sensor (S4) abnormality Measure the voltage on TP14 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN5)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, exchange the finisher control PC board (FIN).

Code: EA32
Description: Exit paper remaining jam
Causes: Paper jam in finisher section Exit paper remaining jam
Troubleshooting Guides: MJ-1109/1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Processing tray sensor (S12) • Sensor check • Connector check • Harness check
Finisher control PC board (FIN) • Board check • Connector check (CN25) • Harness check

Code: EA40
Description: Cover open detection error
Causes: Paper jam in finisher section Cover open error
Troubleshooting Guides: MJ-1042
Sub-path opening/closing sensor (S12) abnormality Measure the voltage on TP12 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Front cover switch (SW1) abnormality Measure the voltage on TP77 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when the switch is ON and within the range of 3.3V„b5% when OFF. If the voltage does not fall within the range mentioned, replace the switch.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN10, CN13)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the switches, sensor and connector, exchange the finisher control PC board (FIN).

Code: EA40
Description: Cover open error
Causes: Paper jam in finisher section Cover open error
Troubleshooting Guides: MJ-1109/1110
Cover • Close the front cover or the stationary tray if they are opened.
Front cover switch (SW1) • Sensor check • Connector check • Harness check
Stationary tray opening/closing switch (SW2) • Sensor check • Connector check • Harness check
Finisher controller board • Connector check (CN14) • Board check

Code: EA50
Description: Stapling jam
Causes: Paper jam in finisher section Stapling jam
Troubleshooting Guides: MJ-1042
Staple unit stapling start position sensor (S17) abnormality Measure the voltage on TP23 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when the sensor is ON and within the range of 3.3V„b5% when OFF. If the voltage does not fall within the range mentioned, replace the staple unit.
Staple unit staple empty sensor (S18) abnormality Measure the voltage on TP24 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when the sensor is ON and within the range of 3.3V„b5% when OFF. If the voltage does not fall within the range mentioned, replace the staple unit.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN17)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the staple unit and the connectors, exchange the finisher control PC board (FIN).

Code: EA50
Description: Stapling jam
Causes: Paper jam in finisher section Stapling jam
Troubleshooting Guides: MJ-1109/1110
Stapler • Check if there is any paper in the finisher or on the transport path of the equipment or on the finishing tray. Remove it if there is • Is the jam cleared by taking off the staple cartridge from the finisher and removing the staple sheet slid from the staple case? • If the actuator of the stapler safety sensor (S11) does not move smoothly, remove its clip from the side and then reattach it. • Connector check • Harness check
Finisher controller PC board (FIN) • Board check • Connector check (CN19) • Harness check

Code: EA60
Description: Early arrival jam
Causes: Paper jam in finisher section Early arrival jam
Troubleshooting Guides: MJ-1042
Entrance path sensor (S19) abnormality Measure the voltage on TP86 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN22)
Finisher control PC board (FIN) abnormality If the error still occurs after replacing the sensor and the connector, exchange the finisher control PC board (FIN).
MJ-1109/1110
Paper Check if there is any paper in the finisher or on the transport path of the equipment and remove it if there is.
Feeding sensor (S22) • Sensor check(S22) • Connector check (CN1) • Harness check
Finisher controller PC board (FIN) • Board check • Connector check (CN1) • Harness check

Code: EA70
Description: Stack exit belt home position error
Causes: Paper jam in finisher section Stack exit belt home position error
Troubleshooting Guides: MJ-1109/1110
Stack belt exit home position sensor (S9) Check if there is a disconnection of the connector, incorrect installation or breakage of the stack belt exit home position sensor (S9). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN25) on the finisher controller PC board is disconnected from the stack belt exit home position sensor (S9) and the harnesses are open circuited. Correct if any.
Stack transport motor (M8) Check if the connector (CN18) on the finisher controller PC board is disconnected from the stack transport motor (M8) and the harnesses are open circuited. Correct if any.

Code: EA90
Description: Saddle stitch unit open error
Causes: Paper jam in saddle stitch section Door open jam
Troubleshooting Guides: MJ-1110
Saddle stitch unit Close the saddle stitch unit if it is open.
Paper Remove any paper on the stacker.
Saddle stitch unit opening/closing switch (SW5) Check if there is a disconnection of the connector, incorrect installation or breakage of the saddle stitch unit opening/ closing switch (SW5). If there is, reinstall the sensor correctly or replace it. Check if the harness between the saddle stitch unit opening/ closing switch (SW5) and the CN26 of the finisher controller PC board (FIN) is disconnected or open circuited. Correct if so.

Code: EAA0
Description: Paper remaining in Saddle Stitch Unit
Causes: Finisher jam (Saddle stitcher section) Paper remaining in saddle stitch unit
Troubleshooting Guides: MJ-1110
Paper • Check if there is any paper in the finisher, saddle stitcher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications. Do not use the paper shorter than the specification.
Junction box paper detection sensor (S26) • Sensor check(S26) • Connector check(CN1) • Harness check
Transport path-2 sensor (S27) • Sensor check(S27) • Connector check(CN3) • Harness check
Transport path-3 sensor (S28) • Sensor check(S28) • Connector check(CN3) • Harness check
Ejecting roller sensor(S29) • Sensor check(S29) • Connector check(CN3) • Harness check
Harness Check if the flat cable between the finisher control PC board (FIN) and the saddle control PC board (SDL) is disconnected or open circuited. Correct if so. (Replace the harness if open circuited. Reconnect the connector securely if there is any disconnection.)
Finisher control PC board (FIN) • Board check • Connector check(CN21) • Harness check
Saddle control PC board (SDL) • Board check • Connector check(CN3, CN6) • Harness check

Code: EAB0
Description: Paper transport jam in Saddle Stitch Unit
Causes: Finisher jam (Saddle stitcher section) Paper transport jam in saddle stitch unit
Troubleshooting Guides: MJ-1110
Paper • Check if there is any paper in the finisher, saddle stitcher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications. Do not use the paper longer than the specification.
Transport roller Fix any mechanical problem occurring when the transfer roller is rotated.
Feeding sensor (S22) • Sensor check(S22) • Connector check (CN1) • Harness check
Junction box paper detection sensor (S26) • Sensor check(S26) • Connector check(CN1) • Harness check
Transport path-2 (S27) • Sensor check(S27) • Connector check(CN3) • Harness check
Transport path-3 (S28) • Sensor check(S28) • Connector check(CN3) • Harness check
Ejecting roller sensor(S29) • Sensor check(S29) • Connector check(CN3) • Harness check
Saddle transport motor (M16) • Motor check(M16) • Connector check(CN5) • Harness check
Transport path switching solenoid (SOL5) Check that the gap between the transfer guide surface and the upper surface of the flapper tip is in the acceptable range according to the status of the transport path switching solenoid (SOL5) (solenoid OFF: 1.5 to 2.1 mm, solenoid ON: 2.3 to 2.9 mm). If it is not, adjust it. Check if the harness between the transport path switching solenoid (SOL5) and the CN1 of the finisher controller PC board (FIN) is disconnected or open circuited. Correct if so.
Entrance motor (M1) • Motor check(M1) • Connector check(CN17) • Harness check
Harness Check if the flat cable between the finisher control PC board (FIN) and the saddle control PC board (SDL) is disconnected or open circuited. Correct if so. (Replace the harness if open circuited. Reconnect the connector securely if there is any disconnection.)
Finisher control PC board (FIN) • Board check • Connector check(CN21) • Harness check
Saddle control PC board (SDL) • Board check • Connector check(CN3, CN6) • Harness check

Code: EAB1
Description: Short paper jam in Saddle Stitch Unit
Causes: Finisher jam (Saddle stitcher section) Short paper jam in saddle stitch unit
Troubleshooting Guides: MJ-1110
Paper • Check if there is any paper in the finisher, saddle stitcher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications.
Feeding sensor (S22) • Sensor check (S22) • Connector check (CN1) • Harness check
Junction box paper detection sensor (S26) • Sensor check (S26) • Connector check (CN1) • Harness check
Transport path-2 sensor (S27) • Sensor check (S27) • Connector check (CN3) • Harness check
Transport path-3 sensor (S28) • Sensor check (S28) • Connector check (CN3) • Harness check
Ejecting roller sensor (S29) • Sensor check (S29) • Connector check (CN3) • Harness check
Harness Check if the flat cable between the finisher control PC board (FIN) and the saddle control PC board (SDL) is disconnected or open circuited. Correct if so. (Replace the harness if open circuited. Reconnect the connector securely if there is any disconnection.)
Finisher control PC board (FIN) • Board check • Connector check (CN1, CN21) • Harness check
Saddle control PC board (SDL) • Connector check (CN3, CN6) • Board check

Code: EAD0
Description: Print end command time-out jam
Causes: Other paper jam
The printing has not finished normally because of an error occurring on the interface between the SYS board and the engine firmware at the end of printing.
Troubleshooting Guides: Power • Check if the error is cleared by turning the power OFF and • then back ON.
SYS board • Connector check • Board check
LGC board • Connector check • Board check

Code: EAE0
Description: Receiving time-out jam
Causes: Other paper jam
Receiving time-out jam
Troubleshooting Guides: Finisher • Is the finisher working? • Check if the voltage (24V) is being supplied to the finisher. • Check if the harness connecting the I/F connector of the finisher side and LGC board is open circuited. • Connector check
LGC board • Connector check(CN304, J612) • Check if the harness connecting the finisher and LGC board is open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited.

Code: EAF1
Description: Stack exit roller nip home position detection error
Causes: Stack exit roller nip home position detection error
Troubleshooting Guides: MJ-1042
Stack exit roller shift motor (M6) Stack exit roller home position sensor (S13) The stack exit roller home position sensor (S13) does not detect that the exit roller is not at the upper position after the stack exit roller motor (M6) has been driven in the specified time when the exit roller is moved down. The stack exit roller home position sensor (S13) does not detect that the exit roller is at the upper position after the stack exit roller shift motor (M6) has been driven in the specified time when the exit roller is moved up.

Code: EB30
Description: Ready time-out jam
Causes: Other paper jam
Ready time-out jam
Troubleshooting Guides: Finisher Check if the connector on the equipment is disconnected from the finisher or the harnesses are open circuited. Correct if any.

Code: EB50
Description: Paper remaining on the transport path due to multiple feeding
Causes: Paper transport jam
Troubleshooting Guides: When the paper is fed from any of the 1st drawer, bypass feed unit or ADU: (When the paper is fed from the 1st drawer:)
Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (CN458, J659, J661) • Harness check
PFC board • Board check • Connector check (CN458, CN461, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
(When the paper is fed from the bypass feed unit:)
Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (CN458, J659, J661) • Harness check
PFC board • Board check • Connector check (CN458, CN451, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
(When the paper is fed from the ADU:)
ADU entrance sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[H]) • Connector check (CN421, J693) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check
ADU board • Board check • Connector check (J689, CN420, CN421, CN422) • Harness check
Registration sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[A]) • Connector check (J1077, J1114, CN462, CN458, J659, J660) • Harness check
PFC board • Board check • Connector check (CN458, CN452, CN450) • Harness check
When the paper is fed from any of the 2nd drawer, PFP or LCF:
Feed sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[B]) • Connector check (CN458, J659, J661) • Harness check
2nd drawer paper feed sensor • Sensor check (Perform the input check: FS-03-[F3]ON/[4]/[D]) • Connector check (CN455, J686, J688) • Harness check
PFC board • Board check • Connector check (CN458, CN455, CN452) • Harness check
LGC board • Board check • Connector check (CN323) • Harness check

Code: EB60
Description: Paper remaining on the transport path due to multiple feeding
Causes: Paper transport jam
Troubleshooting Guides: Registration sensor • Sensor check (Perform the input check: FS-03-[ALL]OFF/[9]/[A]) • Connector check (CN458, J659, J660) • Harness check
PFC board • Board check • Connector check (CN458, CN452, CN461) • Harness check
LGC board • Connector check (CN323) • Board check
Drive unit, Rollers • Gear check • Roller check

Code: ED10
Description: Skew adjustment motor (M1) home position detection abnormality
Causes: Other paper jam
Skew adjustment motor (M1) home position detection abnormality
Troubleshooting Guides: MJ-1109/1110 (when MJ-6105 is installed)
Paper • Check if there is any paper in the hole punch unit, finisher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications.
Skew adjustment motor (M1) Rotate skew adjustment motor and fix its mechanism if it does not rotate smoothly.
Skew HP sensor (S2) Skew adjustment motor (M1) Hole punch control PC board Check if the connectors on the hole punch controller PC board (HP board) are disconnected from the skew HP sensor (S2) and the skew adjustment motor, or the harnesses are open circuited. Correct if any.

Code: ED11
Description: Sideways adjustment motor (M2) home position detection error
Causes: Other paper jam
Sideways adjustment motor (M2) home position detection error
Troubleshooting Guides: MJ-1109/1110 (when MJ-6105 is installed)
Paper • Check if there is any paper in the hole punch unit, finisher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications.
Sideways adjustment motor (M2) Rotate sideways adjustment motor and fix its mechanism if it does not rotate smoothly.
Sideways deviation HP sensor (S3) Sideways adjustment motor (M2) Hole punch control PC board (HP) Check if the connectors on the hole punch controller PC board (HP board) are disconnected from the sideways deviation HP sensor (S3) and the sideways adjustment motor, or the harnesses are open circuited. Correct if any.

Code: ED13
Description: Front alignment plate home position error
Causes: Other paper jam
Front alignment plate home position error
Troubleshooting Guides: MJ-1109/1110
Front alignment plate Move the front alignment plate. Fix any mechanical problem.
Front alignment plate home position sensor (S7) Check if there is a disconnection of the connector, incorrect installation or breakage of the front alignment plate home position sensor (S7). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN25) on the finisher controller PC board is disconnected from the front alignment plate home position sensor (S7) and the harnesses are open circuited. Correct if so.
Front alignment motor (M5) Check if the connector (CN18) on the finisher controller PC board is disconnected from the front alignment motor (M5) and the harnesses are open circuited. Correct if so.

Code: ED14
Description: Rear alignment plate home position error
Causes: Other paper jam
Rear alignment plate home position error
Troubleshooting Guides: MJ-1109/1110
Rear alignment plate Move the rear alignment plate. Fix any mechanical problem.
Rear alignment plate home position sensor (S8) Check if there is a disconnection of the connector, incorrect installation or breakage of the rear alignment plate home position sensor (S8). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN25) on the finisher controller PC board is disconnected from the rear alignment plate home position sensor (S8) and the harnesses are open circuited. Correct if so.
Rear alignment motor (M6) Check if the connector (CN18) on the finisher controller PC board is disconnected from the rear alignment motor (M6) and the harnesses are open circuited. Correct if so.

Code: ED15
Description: Paddle home position error
Causes: Other paper jam
Paddle home position error
Troubleshooting Guides: MJ-1109/1110
Paddle Rotate the paddle. If there is any mechanical problem, fix its mechanism.
Paddle home position sensor Paddle motor Finisher controller PC board Check if the connectors (CN15, CN16) on the finisher control PC board are disconnected from the paddle home position sensor (S3) and the paddle motor (M3), or the harnesses are open circuited. Correct if any.

Code: ED16
Description: Buffer tray home position error
Causes: Other paper jam
Buffer tray home position error
Troubleshooting Guides: MJ-1109/1110
Buffer tray guide Open and close the buffer tray guide. Fix any mechanical problem.
Buffer tray home position sensor (S5) Check if there is a disconnection of the connector, incorrect installation or breakage of the buffer tray home position sensor (S5). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN11) on the finisher controller PC board is disconnected from the buffer tray home position sensor (S5) and the harnesses are open circuited. Correct if so.
Assist arm motor (M10) Check if the connector (CN10) on the finisher controller PC board is disconnected from the assist arm motor (M10) and the harnesses are open circuited. Correct if so.
Buffer tray guide motor (M2) Check if the connector (CN10) on the finisher controller PC board is disconnected from the buffer tray guide motor (M2) and the harnesses are open circuited. Correct if so.

Code: EF10
Description: Paper not supported for Saddle Stitch Unit
Causes: MJ-1110
Troubleshooting Guides: Check the paper size, paper type, or number of pages for stapling. Change them if they are unsupported.

Code: EF11
Description: Saddle Stitch Finisher stapling error (front)
Causes: Finisher jam (Saddle stitch section)
Front stapling is not correctly done.
Troubleshooting Guides: MJ-1110
Paper • Check if there is any paper in the hole punch unit, finisher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications.
Staple cartridge (front side) • Is the jam released by taking off the front staple cartridge from the Finisher and removing the staple sheet slid from the staple case?
Front saddle stapler drive unit • Unit check • Connector check • Harness check
Saddle control PC board (SDL) • Connector check (CN2) • Board check

Code: EF12
Description: Saddle Stitch Finisher stapling error (rear)
Causes: Finisher jam (Saddle stitch section)
Rear stapling is not correctly done.
Troubleshooting Guides: MJ-1110
Paper • Check if there is any paper in the hole punch unit, finisher or the on the transport path of the equipment. Remove it if there is. • Use paper accepted in the specifications.
Staple cartridge (rear side) • Is the jam released by taking off the rear staple cartridge from the Finisher and removing the staple sheet slid from the staple case?
Rear saddle stapler drive unit • Unit check • Connector check • Harness check
Saddle control PC board (SDL) • Connector check (CN1) • Board check

Code: EF13
Description: Saddle stitch unit paper holding home position detection error
Causes: Finisher jam (Saddle stitch section)
The paper holder home position cannot be detected.
Troubleshooting Guides: MJ-1110
Paper holding cam • Is there any mechanical problem when the paper holding cam is rotated? Correct if so.
Paper holding home position sensor (S38) • Sensor check • Connector check • Harness check
Paper holding clutch (CLT4) Check if the harness between the saddle control PC board (SDL) and the paper holding clutch (CLT4) is disconnected or open circuited. Correct if so. (Replace the harness if open circuited. Reconnect the connector securely if there is any disconnection.)
Saddle transport motor (M16) Check if the harness between the saddle control PC board (SDL) and the saddle transport motor (M16) is disconnected or open circuited. Correct if so. (Replace the harness if open circuited. Reconnect the connector securely if there is any disconnection.)
Saddle control PC board (SDL) • Connector check (CN5) • Board check

Code: EF14
Description: Saddle paper exit jam
Causes: Finisher jam (Saddle stitch section)
Outputting paper is not completed within a fixed time.
Troubleshooting Guides: MJ-1110
Paper • Is there any paper remaining in the paper transport path of the equipment or the saddle stitch section of the Finisher?
Exit sensor (S31) • Sensor check • Connector check (CN7) • Harness check
Harness Check if the harness between the finisher controller PC board (FIN) and the saddle control PC board (SDL) is disconnected or open circuited. Correct if so. (Replace the harness if open circuited. Reconnect the connector securely if there is any disconnection.)
Finisher control PC board (FIN) • Board check • Connector check (CN21) • Harness check
Saddle control PC board (SDL) • Connector check (CN6, CN7) • Board check

Code: EF15
Description: Saddle Stitch Finisher side alignment motor home position detection abnormality
Causes: Finisher jam (Saddle stitch section)
The side alignment motor home position cannot be detected.
Troubleshooting Guides: MJ-1110
Jog • Is there any mechanical problem when the jog is moved? Correct if so.
Side alignment home position sensor (S36) • Sensor check • Connector check • Harness check
Side alignment motor (M15) • Motor check • Connector check • Harness check
Saddle control PC board (SDL) • Connector check (CN4) • Board check

Code: EF16
Description: Saddle Stitch Finisher stacker motor home position detection abnormality
Causes: Finisher jam (Saddle stitch section)
The stacker motor home position cannot be detected.
Troubleshooting Guides: MJ-1110
Stacker carrier • Is there any mechanical problem when the stacker carrier is moved? Correct if so.
Stacker home position sensor (S33) • Sensor check • Connector check • Harness check
Stacker motor (M14) • Motor check • Connector check • Harness check
Saddle control PC board (SDL) • Connector check (CN8) • Board check

Code: EF17
Description: Saddle Stitch Finisher folding blade home position detection abnormality
Causes: Finisher jam (Saddle stitch section)
The folding blade home position cannot be detected.
Troubleshooting Guides: MJ-1110
Folding blade cam • Is there any mechanical problem when the folding blade cam is rotated? Correct if so.
Folding blade home position sensor (S35) • Sensor check • Connector check (CN12) • Harness check
Folding blade clutch (CLT3) • Clutch check • Connector check (CN13) • Harness check
Saddle control PC board (SDL) • Connector check (CN12, CN13) • Board check

Code: EF18
Description: Saddle Stitch Finisher additional folding roller home position detection abnormality
Causes: Finisher jam (Saddle stitch section)
The additional folding roller home position cannot be detected.
Troubleshooting Guides: MJ-1110
Additional folding carrier • Is there any mechanical problem when the additional folding carrier is moved? Correct if so.
Additional folding home position sensor (S39) Additional folding motor encoder sensor (S42) • Sensor check • Connector check (CN7) • Harness check
Additional folding motor (M20) • Motor check. Check if the motor and timing belt is installed properly. • Connector check (CN10) • Harness check
Saddle control PC board (SDL) • Connector check (CN7, CN10) • Board check

Code: EF19
Description: Saddle paper folding jam
Causes: Finisher jam (Saddle stitch section)
Fold processed paper cannot be transported to the additional folding roller.
Troubleshooting Guides: MJ-1110
Paper • Is there any paper remaining in the paper transport path in the equipment or the saddle stitch section of the Finisher?
Exit transport sensor (S41) • Sensor check • Connector check (CN7) • Harness check
Saddle control PC board (SDL) • Connector check (CN7) • Board check

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Code: EF20
Description: Saddle stacker jam
Causes: Finisher jam (Saddle stitch section)
Transported paper cannot be detected in the stacker.
Troubleshooting Guides: MJ-1110
Paper • Is there any paper remaining in the paper transport path in the equipment or the saddle stitch section of the Finisher?
Stacker paper detection sensor (S30) • Sensor check • Connector check (CN3) • Harness check
Saddle control PC board (SDL) • Connector check (CN3) • Board check

Code: F070
Description: Communication error between System-CPU and Engine-CPU
Causes: Communication related service call
Troubleshooting Guides: Error code • Turn the power OFF and then back ON using the main power switch, and then check if the error code changes to another one. • If it changes to another one, follow the procedure for the changed error code.
Check firmware version • Check the version of the system firmware on the SYS board. • Check the version of the engine firmware on the LGC board.
Board check • Check if the connector (CN131, CN132) on the SYS board and the connector (CN330, CN329) on the LGC board are completely inserted. • Check if the connector pin between the SYS board connectors (CN131, CN132) and the LGC board connectors (CN330, CN329) is disconnected. • Check if the connector CN314 on the LGC board and the connector CN512 on the PS-ACC are completely inserted. • Check if the conductor patterns on the LGC board and SYS board are short circuited or open circuited
Harness • Connector check • Harness check

Code: F071
Description: Communication initialization error between System-CPU and Engine-CPU
Causes: Communication related service call
Troubleshooting Guides: Error code • Turn the power OFF and then back ON using the main power switch, and then check if the error code changes to another one. • If it changes to another one, follow the procedure for the changed error code.
Check firmware version • Check the version of the system firmware on the SYS board. • Check the version of the engine firmware on the LGC board.
Board check • Check if the connector (CN131, CN132) on the SYS board and the connector (CN330, CN329) on the LGC board are completely inserted. • Check if the connector pin between the SYS board connectors (CN131, CN132) and the LGC board connectors (CN330, CN329) is disconnected. • Check if the connector CN314 on the LGC board and the connector CN512 on the PS-ACC are completely inserted. • Check if the conductor patterns on the LGC board and SYS board are short circuited or open circuited
Harness • Connector check • Harness check
LGC board • 25/30/35 ppm: Measure the voltage on TP33 on the LGC board. Then check that the measured voltage is 3.3V. If the voltage does not output, replace the LGC board. • 45/50 ppm: Measure the voltage on TP18 on the LGC board. Then check that the measured voltage is 3.3V. If the voltage does not output, replace the LGC board.

Code: F090
Description: SRAM abnormality on the SYS board
Causes: Circuit related service call
Troubleshooting Guides: SRAM 1. Check that the SRAM is installed properly. 2. Shut down the equipment. 3. Perform [FS-08]. 4. Press [CLASSIC]. 5. When “SRAM REQUIRES INITIALIZATION” appears on the LCD screen, confirm the destination and press the [START] button. If the destination is incorrect, enter the number for the correct one and press the [START] button. 6. When the confirmation message appears on the LCD screen, press [INITIALIZE]. (SRAM initialization starts.) 7. Enter the serial number of the equipment correctly. (FS-08- 9601) 8. Initialize the NIC information. (FS-08-9083) 9. Shut down the equipment. 10.Perform [FS-05]. 11.Press [CLASSIC]. 12.Perform “Data transfer of characteristic value of scanner”. (FS-05-3203, FS-05-3240) 13.By using the [4] [TEST PRINT] test pattern, perform “Automatic gamma adjustment” <PPC>. (FS-05-7869) 14.By using the [70] [TEST PRINT] test pattern, perform “Automatic gamma adjustment” <PRT>. (FS-05-8008) 15.Reboot the equipment. 16.If the error still occurs, replace the SRAM.

Code: F100_0
Description: HDD format error (Operation failure of key data)
Causes: Other service call
HDD format error: Operation of HDD key data fails.
Troubleshooting Guides: Setting Reboot the equipment. If it cannot be recovered, reinstall the software in the following procedure.

Code: F100_1
Description: HDD format error (HDD encryption key data damaged – one board)
Causes: Other service call
HDD format error: Encryption key data of either the SYS board or the SRAM are damaged.
Troubleshooting Guides: Encryption key status Check the displayed message. (HS-73 Firmware Assist mode – > Key Backup/Restore)

Code: F100_2
Description: HDD format error (HDD encryption key data damaged – both boards)
Causes: Other service call
HDD format error: Encryption key data of both the SYS board and the SRAM are damaged.
Troubleshooting Guides: Encryption key status
Check the displayed message. (HS-73 Firmware Assist mode – > Key Backup/Restore)

Code: F100_3
Description: Serial number value error
Causes: Other service call
Only the first two characters of the serial number are entered. (The serial number is not completely entered.)
Troubleshooting Guides: Serial number
Enter the serial number with [FS-08-9601]. If an F100_3 error occurs at the FS Menu startup, select HS-76 SRAM clear mode -> Set Serial Number and enter the serial number.

Code: F101_0, F101_1, F101_2
Description: [F101_0] HDD connection error (HDD connection cannot be detected.)
[F101_1] Root partition mount error (HDD formatting fails.)
[F101_2][F101_3] Partition mount error (The HDD cannot be connected (mounted) caused by damage to areas other than those described in the F101_1 and F101_4 to F101_10 errors.)
Causes: Other service call
HDD unmounted: Connection of HDD cannot be detected. Sub-code 0: HDD connection error (HDD connection cannot be detected.) Sub-code 1: Root partition mount error (HDD formatting fails.) Sub-code 2, 3: Partition mount error (The areas other than those described in the F101_1 and F101_4 to F101_10 errors are damaged.)
Troubleshooting Guides: HDD, SYS board, Setting
1. Turn the power of the equipment OFF and check the connection of the HDD. – Connector and harness check – Check if the connector pins of the HDD are bent. – Check if HDD for other equipment is not installed. – Check if SRAM for other equipment is not installed.
2. If the error still occurs after step 1, perform the following. – Perform HS-73 Firmware Assist mode -> Key Backup/Restore and check that each Key Status is ‘OK’. – If not, recover the key (copy ‘SRAM Key Status’ to ‘FROM Key Status’ or vice versa).
3. If the error still persists after step 2, perform the following. – Perform HS-73 Firmware Assist mode -> Format HDD, and then install ‘System software’ (HS-49 Firmware Update mode -> SYSTEM SOFTWARE (HD Data)).
Notes: The following items will be deleted by HS-73 Firmware Assist mode -> Format HDD. • Message Log • Job Log • Spool Data (Print, Email reception) • Template If F101_1 occurs with secure HDD or the error persists after performing step 3, perform step 3 after performing HS-74 HDD Assist mode -> Revert Factory Initial Status HDD.
4. If the error persists even after step 3, replace the HDD.
5. If the error persists even after step 4, replace the HDD harness.
6. If the error persists even after step 5, replace the SYS board.

Code: F101_13
Description: Error due to damage to file (Damage to the file in the ‘/imagedata’ partition) partition.)
Causes: Other service call
HDD unmounted: Connection of HDD cannot be detected. Sub-code 13: A file in the ‘/imagedata’ partition is damaged.
Troubleshooting Guides: HDD, SYS board, Setting
1. Turn the power of the equipment OFF and check the connection of the HDD. – Connector and harness check – Check if the connector pins of the HDD are bent. – Check if HDD for other equipment is not installed. – Check if SRAM for other equipment is not installed. 2. If the error still occurs after step 1, perform the following. – HS-75 File System Recovery mode → Recovery F/S → /imagedata, and then restart the equipment. – Perform FS-FAX → 11 FAX CLEAR MODE → [CUSTOM INITIALZE] → [CLEAR DATA], and then restart the equipment. 3. If the error persists after step 2, perform the following. – Perform HS-73 Firmware Assist mode → Format HDD, and then install ‘System Software (HD data)’ with HS-49 Firmware Update mode. Notes: The following items will be deleted by performing HS- 73 Firmware Assist mode → Format HDD. • Message Log • Job Log • Spool Data (Print, Email reception) • Template 4. If the error persists even after step 3, perform the following and then reattempt step 3. – HS-74 HDD Assist mode → Revert Factory Initial Status HDD. 5. If the error persists even after step 4, replace the HDD. 6. If the error persists even after step 5, replace the HDD harness. 7. If the error persists even after step 6, replace the SYS board.

Code: F101_4 … F101_10
Description: Partition mount error
Causes: Other service call
HDD unmounted: Connection of HDD cannot be detected.
Troubleshooting Guides: HDD, SYS board, Setting
1. Turn the power of the equipment OFF and check the connection of the HDD. – Connector and harness check – Check if the connector pins of the HDD are bent. – Check if HDD for other equipment is not installed. – Check if SRAM for other equipment is not installed. 2. If the error still occurs after step 1, perform the following. – Perform HS-73 Firmware Assist mode -> Key Backup/Restore and check that each Key Status is ‘OK’. – If not, recover the key (copy ‘SRAM Key Status’ to ‘FROM Key Status’ or vice versa). 3. If the error persists after step 2, perform HS-75 File System Recovery mode→Recovery F/S→/registration, and then restart the equipment. 4. If the error persists after step 3, perform HS-75 File System Recovery mode→Initialize HDD→/registration, and then restart the equipment. 5. If the error still persists after step 4, perform the following. – Perform HS-73 Firmware Assist mode -> Format HDD HDD, and then install ‘System Software (HD data)’ with HS-49 Firmware Update mode. Notes: The following items will be deleted by performing HS- 73 Firmware Assist mode -> Format HDD. • Message Log • Job Log • Spool Data (Print, Email reception) • Template If the error persists after performing step 5, perform step 5 after performing HS-74 HDD Assist mode -> Revert Factory Initial Status HDD. 6. If the error persists even after step 5, replace the HDD. 7. If the error persists even after step 6, replace the HDD harness. 8. If the error persists even after step 7, replace the SYS board.

Code: F102 … F105
Description: [F102] HDD start error
[F103] HDD transfer time-out
[F104] HDD data error
[F105] HDD other error
Causes: Other service call
HDD start error: HDD cannot become “Ready” state.
HDD transfer time-out: Reading/writing cannot be performed in the specified period of time.
HDD data error: Abnormality is detected in the data of HDD.
HDD other error
Troubleshooting Guides: HDD
• Connector and harness check
• Check if the connector pins of the HDD are bent.
• Perform the bad sector check (FS-08-9072). If the check result is OK, recover the data in the HDD. If the check result is failed, replace the HDD.

Code: F106_0
Description: Secure HDD error: Illegal disk replacement detected (Secure HDD Exchange to Normal HDD)
Causes: Other service call
Secure HDD error: The Secure HDD has been replaced illegally to Normal HDD.
Troubleshooting Guides: Setting Check if the HDD has been replaced with a Normal HDD. 1. Start the equipment in the 4C mode: Perform HS-74 HDD assist mode. 2. Check the type of the HDD shown on the top left of the control panel display ‘Current HDD type’. 1. In case of Normal HDD, replace it with the original Secure HDD or a new Secure HDD. Notes: To replace with the original Secure HDD, start the equipment in the normal mode and then reinstall system software only if any abnormality occurs. 2. In case of ‘Secure HDD’ Check each item in the Measures field for the HDD below. If the error still occurs, reinstall the system software.
HDD • Connector check • Harness check Follow the procedure below if no abnormality is found in the check items above. 1. Perform HS-74 HDD assist mode. -> Revert Factory Initial Status HDD 2. Reinstall the system software. If the error persists even after above step, replace the HDD. If the equipment operation disabled after above step, replace the HDD.

Code: F106_1
Description: Secure HDD error: HDD type detection error
Causes: Secure HDD error: HDD type detection fails.
Troubleshooting Guides: Setting If the error is not recovered after rebooting the equipment or no abnormality is found on any check items for the HDD, reinstall the system software.
HDD • Connector check • Harness check • Perform HS-75 File system recovery mode. Check the file system and recover it if necessary. If the recovery fails, replace the HDD. If the equipment does not start in the HS-75 File system recovery mode, also replace the HDD. • Check that either the Secure HDD or Normal HDD is mounted. 1. Perform HS-74 HDD assist mode. 2. Check the type of the HDD shown on the control panel display ‘Current HDD type’. Normal status: Secure HDD or Normal HDD Abnormal status: Unknown HDD If ‘Unknown HDD’ is displayed, reinstall the system software. If the error persists even after above step, replace the HDD. If the equipment operation disabled after above step, replace the HDD.

Code: F106_4
Description: Secure HDD error: Authentication random number generation error
Causes: Secure HDD error: The generation of a random number for authentication data fails.
Troubleshooting Guides: Setting Perform HS-73 Assist mode -> Format HDD, and then install the system software by performing HS-49 Firmware update mode -> SYSTEM SOFTWARE (HD Data). Notes: The following items will be deleted by performing HS- 73 Assist mode -> Format HDD. • Message Log • Job Log • Spool Data (Print, Email reception) • Template
HDD If the error persists even after above step, replace the HDD. If the equipment operation disabled after above step, replace the HDD.

Code: F106_5
Description: Secure HDD error: Authentication data transmission error
Causes: Other service call Secure HDD error: The transmission of authentication data fails.
Troubleshooting Guides: Setting Perform HS-73 Assist mode -> Format HDD, and then install the system software by performing HS-49 Firmware update mode -> SYSTEM SOFTWARE (HD Data). Notes: The following items will be deleted by performing HS- 73 Assist mode -> Format HDD. • Message Log • Job Log • Spool Data (Print, Email reception) • Template
• In case this error occurred after returning SRAM data for SRAM cloning: Copy the Secure HDD key from FROM to SRAM. 1. Perform HS-73 Assist mode. 2. Select “Key Backup / Restore”. 3. Check the status of the Secure HDD key on the Key/ Backup Restore menu. 4. Select [ADIkey] twice. 5. Check that copying of the Secure HDD key from the FROM to SRAM is selected. 6. Press [Execute]. 7. When the restoring of the encryption key is completed, “Success” appears to the right-hand side of [ADIKey] FROM. 8. After the operation has been completed, shut down the equipment.
HDD If the error persists even after above step, replace the HDD. If the equipment operation disabled after above step, replace the HDD.

Code: F106_6 … F106_10
Description: [F106_6]/[F106_7]/[F106_8]/[F106_10] /[F106_UNDEF] Secure HDD error: Error caused by reason other than F106_0 to 5 errors
Causes: Secure HDD error: Error caused by reason other than F106_0 to 5 errors
Troubleshooting Guides: Setting Perform HS-73 Assist mode -> Format HDD, and then install the system software by performing HS-49 Firmware update mode -> SYSTEM SOFTWARE (HD Data).
Notes: The following items will be deleted by performing HS- 73 Assist mode -> Format HDD. • Message Log • Job Log • Spool Data (Print, Email reception) • Template
HDD If the error persists even after above step, replace the HDD. If the equipment operation disabled after above step, replace the HDD.

Code: F109_0
Description: Key consistency error (Consistency check operation error)
Causes: Key consistency error – Key consistency check on each key data fails.
Troubleshooting Guides: Setting Reboot the equipment. If it cannot be recovered, reinstall the software in the following procedure. 1. Install the system firmware. 2. If the error cannot be solved after installing the system firmware, reinstall the system software and application program.
SRAM If the error is not cleared after the software reinstallation, replace the SRAM.
SYS board If the error is not cleared after this (see above), replace the SYS board.

Code: F109_1
Description: Key consistency error (SRAM encryption AES key data damage)
Causes: Key consistency error – AES key data used for SRAM encryption are damaged.
Troubleshooting Guides: Setting Reboot the equipment. If it cannot be recovered, reinstall the software in the following procedure. 1. Install the system firmware. 2. If the error cannot be solved after installing the system firmware, reinstall the system software and application program.

Code: F109_2
Description: Key consistency error (Signature Check public key damage)
Causes: Key consistency error – Public key data used for Integrity Check are damaged.
Troubleshooting Guides: Setting Reboot the equipment. If it cannot be recovered, reinstall the software in the following procedure. 1. Install the system firmware. 2. If the error cannot be solved after installing the system firmware, reinstall the system software and application program.

Code: F109_3
Description: Key consistency error (HDD encryption parameter damage)
Causes: Key consistency error – Parameter used for HDD partition encryption are damaged.
Troubleshooting Guides: Encryption key status confirmation Check the message displayed by HS-73 Assist mode → Key Backup / Restore.
Take measures given in the following table according to the messages displayed in the SRAM and FROM fields. Remarks: If the error is not cleared, reinstallation of the system firmware, system software and application is needed. (HS-49 Firmware update mode)

Code: F109_4
Description: Key consistency error (license data damage)
Causes: Key consistency error – The license data are damaged.
Troubleshooting Guides: Encryption key status confirmation Check the message displayed by HS-73 Assist mode → Key Backup / Restore.
Take appropriate countermeasures shown in the table below according to the messages displayed in the SRAM and FROM fields of LICENCE [F109_4]. Remarks: If the error is not cleared, reinstallation of the system firmware, system software and application is needed. (HS-49 Firmware update mode)

Code: F109_5
Description: Key consistency error (encryption key for Secure HDD is damaged)
Causes: Key consistency error – Encryption key for Secure HDD is damaged.
Troubleshooting Guides: Encryption key status confirmation Check the message displayed by HS-73 Assist mode → Key Backup Restore.
Take appropriate countermeasures shown in the table below according to the messages displayed in the SRAM and FROM fields of AGLENCKEY [F109_5] / AGLDECKEY [F109_5]. Remarks: If the error is not cleared, reinstallation of the system firmware, system software and application is needed. (HS-49 Firmware update mode)

Code: F109_6
Description: Key consistency error (administrator password error for Secure HDD authentication)
Causes: Key consistency error – Administrator password error for Secure HDD authentication.
Troubleshooting Guides: Encryption key status confirmation Check the message displayed by HS-73 Assist mode → Key Backup Restore.
Take appropriate countermeasures shown in the table below according to the messages displayed in the SRAM and FROM fields of AdminPassword [F109_6]. Remarks: If the error is not cleared, reinstallation of the system firmware, system software and application is needed. (HS-49 Firmware update mode)

Code: F110, F111
Description: [F110] Communication error between System-CPU and Scanner-CPU
[F111] Scanner response abnormality
Causes: Communication error between System-CPU and Scanner-CPU Scanner response abnormality
Troubleshooting Guides: Reproducibility Turn the power OFF and then back ON using the main power switch.
SYS board • Check if the conductor pattern on the SYS board is short circuited or open circuited. • Connector check (CN122) • Harness check (CN122)

Code: F115 … F118
Description: [F115] S-VDEN ON signal time-out error
[F116] S-VDEN OFF signal time-out error
[F117] S-VDEN ON (back side) signal time-out error
[F118] S-VDEN OFF (back side) signal time-out error
Causes: DSDF service call
The scanning job has not finished normally.
Troubleshooting Guides: Reproducing ability Turn the power OFF and then back ON to check the occurrence.
Harness Check if the connectors of the DSDF control PC board and SYS board are disconnected or the harnesses are open circuited.
DSDF control PC board Replace the DSDF control PC board.
SYS board Replace the SYS board.

Code: F120
Description: Database abnormality
Causes: Database abnormality: Database is not operating normally.
Troubleshooting Guides: Setting 1. Check that no jobs remain and rebuild the databases. (HS-75 File system recovery mode -> Initialize database – > LDAP DB and Log DB (Job,Msg). 2. If the error is not recovered, reinstall the system software. (HS-49 Firmware update mode -> System Software(HD data)) Notes: • If you rebuild the databases with a job remaining, delete it after finishing. • When ‘Rebuilding all databases’ is performed, all data including log/user/role/group/department information and address book data are deleted. If you back up the data in advance, they will be recovered by restoring them after rebuilding the database.

Code: F121
Description: Database abnormality (user information management database)
Causes: Login after the startup fails in any starting mode because user management database is corrupted.
Troubleshooting Guides: Setting 1. Check that no jobs remain and rebuild the databases. 2. Delete the data in the following procedure: HS-75 File system recovery mode → Initialize database → LDAP database (Note that all user, role, group and accounting data will be deleted.) 3. If the error is not recovered, reinstall the system software. (HS-49 Firmware update mode -> System Software(HD data)) Notes: • If you rebuild the databases with a job remaining, delete it after finishing. • When ‘Rebuilding all databases’ is performed, all data including log/user/role/group/department information and address book data are deleted. If you back up the data in advance, they will be recovered by restoring them after rebuilding the database.

Code: F122
Description: Database abnormality (message/job log management database)
Causes: Login after the startup fails in any starting mode because log management database is corrupted.
Troubleshooting Guides: Setting 1. Check that no jobs remain and rebuild the databases. 2. Delete the data in the following procedure: HS-75 File system recovery mode → Initialize database → Log database (jobs and messages) (Note that all job and message logs will be deleted.) 3. If the error is not recovered, reinstall the system software. (HS-49 Firmware update mode → System Software(HD data)) Notes: • If you rebuild the databases with a job remaining, delete it after finishing. • When ‘Rebuilding all databases’ is performed, all data including log/user/role/group/department information and address book data are deleted. If you back up the data in advance, they will be recovered by restoring them after rebuilding the database.

Code: F124
Description: Language DB damage error
Causes: Login after the startup fails in any starting mode because language management database is corrupted.
Troubleshooting Guides: Setting 1. Delete the journal file: HS-75 File system recovery mode → Initialize DB → Language DB 2. If the recovery is still not completed, reinstall the system software. (HS-49 Firmware update mode > System Software(HD data))

Code: F130
Description: Invalid MAC address
Causes: Invalid MAC address
Troubleshooting Guides: Setting This error occurs when the top 3 bytes of the MAC address is not ’00’ ’80’ ’91’.
SYS board Replace the SYS board

Code: F131
Description: Error due to damage to filtering setting file
Causes: The filtering function is not working properly due to the damage to the file for the filtering setting.
Troubleshooting Guides: Setting 1. Check the bad sector of the HDD (FS-08-9072). If the result is ‘NG’, replace the HDD. Notes: It may take more than 30 minutes to finish the checking. 2. Perform HS-73 Assist mode -> Format HDD, and then reinstall the HDD software. Notes: User data will be deleted when HS-73 Assist mode – > Format HDD is performed.

Code: F200
Description: Data Overwrite option (GP-1070) disabled
Causes: Data Overwrite option (GP-1070) disabled
Troubleshooting Guides: Setting Perform FS-08-3840 to install the Data Overwrite Enabler (GP- 1070).

Code: F350
Description: SYS board abnormality
Causes: Circuit related service call
Troubleshooting Guides: SYS board Board check
Combination of the firmware version • Check the combination of the firmware version of the system firmware, system software, engine firmware, and scanner firmware. • Reinstall the firmware of correct combination.

Code: F400
Description: SYS cooling fan abnormality
Causes: Circuit related service call
Troubleshooting Guides: SYS cooling fan Check if the fan is rotating properly. If not, check if any foreign object is adhered.
SYS board Check the connector (CN117) and relay connector.

Code: F510
Description: Application start error
Causes: The application fails to start.
Troubleshooting Guides: Setting 1. Reboot. 2. If it has still not recovered, reinstall the system software. 3. If it still persists after step 2, perform HS-73 Assist mode – > Format HDD, and then reinstall the system software. User data will be deleted when HS-73 Assist mode -> Format HDD is performed

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Code: F520
Description: Operating system start error
Causes: Other service call
The operating system fails to start.
Troubleshooting Guides: Setting 1. Reboot. 2. If it has still not recovered, reinstall the system software. 3. If it still persists after step 2, perform HS-73 Assist mode – > Format HDD, and then reinstall the system software. User data will be deleted when HS-73 Assist mode -> Format HDD is performed.

Code: F521
Description: Integrity check error
Causes: Other service call The program data fails to be authenticated.
Troubleshooting Guides: Setting Restart the equipment. If the error is not recovered after restarting the equipment, reinstall software following the procedure below. 1. Reinstall the system software and application program.

Code: F550
Description: Encryption partition error
Causes: Other service call
The encryption partition fails to be read and written.
Troubleshooting Guides: Setting • Recover the encryption key with HS-73 Assist mode -> Key Backup/Restore.

Code: F600
Description: F/W update error
Causes: The firmware fails to be updated.
Troubleshooting Guides: Setting 1. Perform HS-73 Assist mode -> Clear Error Flag in Software Installation. 2. Reinstall the firmware in error displayed on the F600 error screen.

Code: F700
Description: Overwrite error
Causes: Other service call
Overwriting fails.
Troubleshooting Guides: Setting • If a service call occurs again after the reboot, replace the HDD.

Code: F800
Description: Date error
Causes: The year 2038 problem
Troubleshooting Guides: Setting Reset the date, and request the administrator to set the date and time. 1. Perform HS-76 SRAM clear mode -> Reset Date and Time. 2. Request the administrator to set the date and time.

Code: F900
Description: Model information error
Causes: Machine information alignment error. The machine information is damaged.
Troubleshooting Guides: Setting Recover the machine information by means of the following procedure. <Machine information recovery> 1. Perform HS-76 SRAM clear mode -> SRAM Re-Initialize. 2. After the operation is completed, shut down the equipment. * If it is not recovered, perform the following procedure. 3. Perform HS-73 Assist mode -> Key Backup/Restore. 4. Press [Key] twice. 5. Check that copying of the key from the FROM to SRAM is selected. 6. Press [Execute]. 7. When the restoring of the key is completed, ‘Success’ appears to the right-hand side of [Key] FROM. 8. After the operation is completed, shut down the equipment.

Code: F902_1
Description: System firmware / System software model information error
Causes: Invalid system firmware/software is installed.
Troubleshooting Guides: Setting
1. Confirm the model of the equipment.
2. Install the system firmware corresponding to the model.
3. Install the system software corresponding to the model.
SYS board Replace the SYS board.

Code: F902_2
Description: A model-unmatched SYS board is installed or the SRAM is cleared
Causes: • The SYS board for e-STUDIO2000AC/2500AC is installed in 25/30/35/45/50 ppm. Or the opposite combination.
• The SRAM is cleared.
Troubleshooting Guides: SYS board Check if the model of the equipment matches the part number of the SYS board.
Setting Perform the following procedure if an error occurs when the SRAM is cleared. 1. Perform FS-08 SETTING MODE. 2. When ”SRAM REQUIRES INITIALIZATION” is displayed on the display, check the destination and then press the [START] button. If the destination is not correct, key in the correct one and then press the [START] button. 3. After the confirmation message is displayed, press the [INTERRUPT] button. (SRAM is initialized.) 4. Enter the serial number (FS-08-9601). Match it with the serial number on the label attached to the rear cover of the equipment. 5. Initialize the NIC information (FS-08-9083). 6. Perform 05 ADJUSTMENT MODE. 7. Perform “Data transfer of characteristic value of scanner” (FS-05-3203). 8. Perform ”Automatic gamma adjustment” <PPC> (FS-05- 7869). 9. Perform “Automatic gamma adjustment” <PRT> (FS-05- 8008). 10.Turn the power OFF and then back ON.

Code: F902_3
Description: SRAM abnormality on the SYS board
Causes: SRAM abnormality on the SYS board
Troubleshooting Guides: SRAM 1. Check that the SRAM is installed properly. 2. Shut down the equipment. 3. Perform [FS-08]. 4. Press [CLASSIC]. 5. When “SRAM REQUIRES INITIALIZATION” appears on the LCD screen, confirm the destination and press the [START] button. If the destination is incorrect, enter the number for the correct one and press the [START] button. 6. When the confirmation message appears on the LCD screen, press [INITIALIZE]. (SRAM initialization starts.) 7. Enter the serial number of the equipment correctly. (FS-08- 9601) 8. Initialize the NIC information. (FS-08-9083) 9. Shut down the equipment. 10.Perform [FS-05]. 11.Press [CLASSIC]. 12.Perform “Data transfer of characteristic value of scanner”. (FS-05-3203, FS-05-3240) 13.By using the [4] [TEST PRINT] test pattern, perform “Automatic gamma adjustment” <PPC>. (FS-05-7869) 14.By using the [70] [TEST PRINT] test pattern, perform “Automatic gamma adjustment” <PRT>. (FS-05-8008) 15.Reboot the equipment. 16.If the error still occurs, replace the SRAM.
SYS board Board check

Code: F902_4
Description: SYS board model information error
Causes: Invalid SYS board is installed to the equipment.
Troubleshooting Guides: SYS board Check if the model of the equipment matches the color of the label on the SYS board.
Setting 1. Install the system firmware. 2. If the error cannot be solved after installing the system firmware, reinstall the system software and application program.

Waste Ink Pad Counter Utility Functions:

– Cleaning printhead.
– Ink charge.
– Fix Epson red lights blinking Error

– Fix Epson Service Required Error: A printer’s ink pad at the end of its service life Please contact Epson Support.

– Check the current value of waste ink counters and ink level counters.
– Clear Waste Ink Counters.
– Read and write serial number.
– Read and write USB ID.
– Read and write HEAD ID.
– Make EEPROM dump, backup.
– Paper feed test.
– Nozzle check.
– Color check pattern.
– Initialize (disable) PF deterioration offset.
– Retrieve device information

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OKI ES9476MFP Error Codes list and solutions