[SOLVED] Quick fix Konica-Minolta 8650 list error codes

[SOLVED] Quick fix Konica-Minolta 8650 list error codes

– Compatible Printer model: Konica-Minolta Magicolor 8650
– Konica-Minolta Magicolor 8650 Error Codes with quick guides:

• Code: C0001
• Description: LCT connection failed
• Troubleshooting Guides:

• Code: C0202
• Description: Tray 2 feeder up/down abnormality
  • The paper feed tray 2 upper limit sensor is not blocked even after the lapse of a given period of time after the lifting motion has been started.
• Troubleshooting Guides: 1 Check the M8 connector for proper connection and correct as necessary. 2 Check the connector of M8 for proper drive coupling and correct as necessary. 3 PS8 I/O check PRCB CN12PRCB-3 (ON) D-8. 4 M8 operation check PRCB CN11PRCB-4 (REM) D-13. 5 Change M8. 6 Change PRCB.

• Code: C0204
• Description: Tray 3 feeder up/down abnormality
  • The paper feed tray 3 upper limit sensor is not blocked even after the lapse of a given period of time after the lifting motion has been started.
• Troubleshooting Guides: 1 Check the M9 connector for proper connection and correct as necessary. 2 Check the connector of M9 for proper drive coupling and correct as necessary. 3 PS15 I/O check PRCB CN9PRCB-3 (ON) D-9. 4 M9 operation check PRCB CN7PRCB-9 (REM) D-11. 5 Change M9. 6 Change PRCB.

• Code: C0206
• Description: Tray 4 feeder up/down abnormality
• Troubleshooting Guides:

• Code: C0208
• Description: Tray 5 feeder up/down abnormality
• Troubleshooting Guides:

• Code: C0209
• Description: LCT elevator motor malfunction
• Troubleshooting Guides:

• Code: C0210
• Description: LCT ascent motion failure
• Troubleshooting Guides:

• Code: C0211
• Description: Tray 1 feeder up/down abnormality
  • The paper feed tray 1 lift-up position sensor is not unblocked even when the transport motor has turned for a given number of pulses after the sequence to move the paper lifting plate from the standby position to the feed position was started. • The paper feed tray 1 lift-up position sensor is not blocked even when the transport motor has turned for a given number of pulses after the sequence to move the paper lifting plate from the feed position to the standby position was started.
• Troubleshooting Guides: 1 Check the M1 connector for proper connection and correct as necessary. 2 Check the connector of M1 for proper drive coupling and correct as necessary. 3 PS17 I/O check PRCB CN6PRCB-7 (ON) D-2. 4 SL1 operation check PRCB CN6PRCB-4 (ON) D-1. 5 M1 operation check PRCB CN34PRCB-10 (REM) PRCB CN34PRCB-13 (LOCK) D-22. 6 Change SL1. 7 Change M1. 8 Change PRCB.

• Code: C0212
• Description: LCT ejection failure
• Troubleshooting Guides:

• Code: C0213
• Description: LCT shift gate malfunction
• Troubleshooting Guides:

• Code: C0214
• Description: LCT shifting failure
• Troubleshooting Guides:

• Code: C0215
• Description: LCT shift motor malfunction
• Troubleshooting Guides:

• Code: C0301
• Description: Suction fan motor’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM8 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM8 operation check PRCB CN3PRCB-2 (ON) PRCB CN3PRCB-3 (LOCK) D-4 to 5. 4 Change the right door assy. 5 Change PRCB.

• Code: C1004
• Description: FNS communication error
• Troubleshooting Guides:

• Code: C1180
• Description: Transport system drive malfunctions
• Troubleshooting Guides:

• Code: C1181
• Description: Paddle motor malfunctions
• Troubleshooting Guides:

• Code: C1182
• Description: Unsupported option trouble
• Troubleshooting Guides:

• Code: C1183
• Description: Finishing option elevator drive malfunction
• Troubleshooting Guides:

• Code: C1190
• Description: Finishing option aligning bar moving mechanism malfunction 1
• Troubleshooting Guides:

• Code: C1191
• Description: Finishing option aligning bar moving mechanism malfunction 2
• Troubleshooting Guides:

• Code: C1192
• Description: Front aligning plate motor malfunctions
• Troubleshooting Guides:

• Code: C1193
• Description: Rear aligning plate motor malfunctions
• Troubleshooting Guides:

• Code: C11A0
• Description: Paper holding drive failure
• Troubleshooting Guides:

• Code: C11A1
• Description: Finishing option exit roller pressure/retraction failure
• Troubleshooting Guides:

• Code: C11A2
• Description: Saddle exit roller pressure/retraction failure
• Troubleshooting Guides:

• Code: C11A3
• Description: Shutter drive failure
• Troubleshooting Guides:

• Code: C11A4
• Description: Saddle exit motor failure Booklet exit motor malfunctions
• Troubleshooting Guides:

• Code: C11A5
• Description: Saddle in & out guide motor failure
• Troubleshooting Guides:

• Code: C11A6
• Description: Saddle layable guide drive failure
• Troubleshooting Guides:

• Code: C11B0
• Description: Finishing option stapler unit CD drive failure
• Troubleshooting Guides:

• Code: C11B1
• Description: Stapler unit slide motor malfunctions
• Troubleshooting Guides:

• Code: C11B2
• Description: Finishing option stapling mechanism malfunction 1
• Troubleshooting Guides:

• Code: C11B4
• Description: Stapler/folding motor malfunctions
• Troubleshooting Guides:

• Code: C11B5
• Description: Side staple 1 drive failure
• Troubleshooting Guides:

• Code: C11B6
• Description: Side staple 2 drive failure
• Troubleshooting Guides:

• Code: C11C0
• Description: Punch motor malfunction
• Troubleshooting Guides:

• Code: C11C1
• Description: Punch control board malfunctions
• Troubleshooting Guides:

• Code: C11C2
• Description: Punch side registration motor malfunctions
• Troubleshooting Guides:

• Code: C11C3
• Description: Punch motor malfunctions
• Troubleshooting Guides:

• Code: C11C5
• Description: Punch sensor malfunctions
• Troubleshooting Guides:

• Code: C11D0
• Description: Crease motor drive failure
• Troubleshooting Guides:

• Code: C11E0
• Description: Unsupported option trouble
• Troubleshooting Guides:

Solve Konica-Minolta Magicolor 8650 Error codes

• Code: C1301
• Description: Finishing option cooling fan motor failure
• Troubleshooting Guides:

• Code: C1401
• Description: Backup RAM failure
• Troubleshooting Guides:

• Code: C2151
• Description: Secondary transfer roller pressure welding alienation
  • During a retraction operation of the 2nd image transfer roller, the 2nd image transfer welding alienation sensor cannot detect the 2nd image transfer roller at its retracted position within a predetermined period of time after the 2nd image transfer retraction motor starts rotating. • During a pressure operation of the 2nd image transfer roller, the 2nd image transfer welding alienation sensor cannot detect the 2nd image transfer roller at its pressed position within a predetermined period of time after the 2nd image transfer retraction motor starts rotating.
• Troubleshooting Guides: 1 Check the M11 connector for proper connection and correct as necessary. 2 Check the connector of M11 for proper drive coupling and correct as necessary. 3 PS36 I/O check PRCB CN3PRCB-9 (ON) D-5. 4 Change the right door assy. 5 Change PRCB.

• Code: C2152
• Description: Transfer belt pressure welding alienation
  • During a retraction operation of the transfer belt, the transfer belt retraction sensor cannot detect the transfer belt at its retracted position within a predetermined period of time after the transfer belt retraction clutch is turned ON. • During a pressure operation of the transfer belt, the transfer belt retraction sensor cannot detect the transfer belt at its pressed position within a predetermined period of time after the transfer belt clutch is turned ON.
• Troubleshooting Guides: 1 Check the M5 connector for proper connection and correct as necessary. 2 PS31 I/O check PRCB CN36PRCB-15 (ON) D-26 to 27. 3 CL7 operation check PRCB CN39PRCB-10 (ON) D-23. 4 M5 operation check PRCB CN34PRCB-2 (REM) PRCB CN34PRCB-5 (LOCK) D-21. 5 Change CL7. 6 Change M5. 7 Change PRCB.

• Code: C2164
• Description: PC charge malfunction
  • When electrostatic charge output is ON, electrostatic charge leak detection system continues to detect leaks for a predetermined period of time.
• Troubleshooting Guides: 1 Check the imaging unit for proper connection and correct as necessary. 2 Check the HV connector for proper connection and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 Change IU. 5 Change HV. 6 Change PRCB.

• Code: C2253
• Description: Color PC motor’s failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Troubleshooting Guides: 1 Check the M2 connector for proper connection and correct as necessary. 2 Check the M2 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M2 operation check PRCB CN35PRCB-4 (REM) PRCB CN35PRCB-7 (LOCK) D-22. 5 Change M2. 6 Change PRCB.

• Code: C2254
• Description: Color PC motor’s turning at abnormal timing
  • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the M2 connector for proper connection and correct as necessary. 2 Check the M2 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M2 operation check PRCB CN35PRCB-4 (REM) PRCB CN35PRCB-7 (LOCK) D-22. 5 Change M2. 6 Change PRCB.

• Code: C225D
• Description: Color dev. unit engagement/disengagement failure
  • The gears remain disengaged after the lapse of a predetermined period of time after the engagement operation is started by the color dev. unit engaged motor. • The gears remain engaged after the lapse of a predetermined period of time after the disengagement operation is started by the color dev. unit engaged motor.
• Troubleshooting Guides: 1 Check the M10 connector for proper connection and correct as necessary. 2 Check the M10 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 PS26 I/O check PRCB CN39PRCB-18 (ON) D-24. 5 M10 operation check PRCB CN39PRCB-12 (REM) D-24. 6 Change M10. 7 Change PRCB.

• Code: C2351
• Description: K toner suction fan motor’s failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Troubleshooting Guides: 1 Check the FM3 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM3 operation check PRCB CN30PRCB-7 (ON) PRCB CN30PRCB-9 (LOCK) K-7 to 8. 4 Change FM3. 5 Change PRCB.

• Code: C2451
• Description: Release new transfer belt unit
  • A new installation is not detected when a new transfer cleaner unit (image transfer belt unit) is installed.
• Troubleshooting Guides: 1 Reinstall unit. 2 Check there is a short circuit in the fuse of the transfer belt unit. 3 Check the PRCB connector for proper connection and correct as necessary. 4 Change PRCB.

• Code: C2551
• Description: Abnormally low toner density detected cyan TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 M3, M4 operation check (At this time, IU must be non-installation.) PRCB CN39PRCB-1 to 4 (M3) PRCB CN39PRCB-5 to 8 (M4) D-23. 4 Change imaging unit. 5 Change PRCB.

• Code: C2552
• Description: Abnormally high toner density detected cyan TCR sensor
  • TC ratio in the developing machine, which is determined by Toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 Change imaging unit. 4 Change PRCB.

• Code: C2553
• Description: Abnormally low toner density detected magenta TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 M3, M4 operation check (At this time, IU must be non-installation.) PRCB CN39PRCB-1 to 4 (M3) PRCB CN39PRCB-5 to 8 (M4) D-23. 4 Change imaging unit. 5 Change PRCB.

• Code: C2554
• Description: Abnormally high toner density detected magenta TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively. • When the connector of the TCR sensor is disconnected.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 Change imaging unit. 4 Change PRCB.

• Code: C2555
• Description: Abnormally low toner density detected yellow TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively. • When the connector of the TCR sensor is disconnected.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 M3, M4 operation check (At this time, IU must be non-installation.) PRCB CN39PRCB-1 to 4 (M3) PRCB CN39PRCB-5 to 8 (M4) D-23. 4 Change imaging unit. 5 Change PRCB.

• Code: C2556
• Description: Abnormally high toner density detected yellow TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively. • When the connector of the TCR sensor is disconnected.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 Change imaging unit. 4 Change PRCB.

• Code: C2557
• Description: Abnormally low toner density detected black TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 4 % or less for a given number of times consecutively.
• Troubleshooting Guides: 1 M3 operation check (At this time, IU must be non-installation.) PRCB CN39PRCB-1 to 4 D-23. 2 Reinstall imaging unit. 3 Reinstall toner cartridge. 4 Change imaging unit /K. 5 Change PRCB.

• Code: C2558
• Description: Abnormally high toner density detected black TCR sensor
  • TC ratio in the developing machine, which is determined by toner replenishing amount control mechanism, is 11 % or more for a given number of times consecutively. • When the connector of the TCR sensor is disconnected.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Reinstall toner cartridge. 3 Change imaging unit /K. 4 Change PRCB.

• Code: C2559
• Description: Cyan TCR sensor adjustment failure
  • TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Change imaging unit. 3 Change PRCB.

• Code: C255A
• Description: Magenta TCR sensor adjustment failure
  • TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Change imaging unit. 3 Change PRCB.

• Code: C255B
• Description: Yellow TCR sensor adjustment failure
  • TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
• Troubleshooting Guides: 1 Reinstall imaging unit. 2 Change imaging unit. 3 Change PRCB.

• Code: C255C
• Description: Black TCR sensor adjustment failure
  • TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
• Troubleshooting Guides: 1 Reinstall imaging unit /K. 2 Change imaging unit /K. 3 Change PRCB.

• Code: C2650
• Description: Main backup media access error
  • The re-written data, which has been read out, checked and founded as error, is read out again and found as error. • The error was found when reading out the counter value. • The machine detects that the service EEPROM board is not loaded in position.
• Troubleshooting Guides: 1 Check the connector (CN23PRCB) on PRCB, the connector (CN1SV ERB) on SV ERB, and the harness between the boards for proper connection and correct as necessary. 2 Change PRCB 2.1. Turn OFF the power switch and replace the current PRCB with a new one. (When using a PRCB of another machine in service, be sure to use a PRCB installed in the same model.) 2.2. Update the PRCB firmware. 2.3. After completing the firmware update, turn OFF and ON the power switch and check to see that warm-up is started. Make sure that malfunction codes other than C2650 or improper IU/TC placement is not detected. 2.4. When the trouble cannot be solved, reinstall the removed PRCB to the original board. NOTE • When taking the above steps, check whether PRCB is defective or not without replacing the SV ERB. 3 Change SV ERB 3.1. Replace the current SV ERB with a new one. 3.2. Turn ON the power switch and check to see that warm-up is started. (One minute is spent to prepare the new SV ERB for use. During the period, the control panel backlight stays off.) Make sure that malfunction codes other than C2650 or improper IU/TC placement is not detected. 3.3. Make the specified readjustments. 4 If the above actions do not solve the problem, contact KMBT.

• Code: C2651
• Description: EEPROM access error (IU C)
• Troubleshooting Guides: 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit. 3 Check the harness for proper connection and correct as necessary. 4 Change imaging unit. 5 Change PRCB.

• Code: C2652
• Description: EEPROM access error (IU M)
• Troubleshooting Guides: 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit. 3 Check the harness for proper connection and correct as necessary. 4 Change imaging unit. 5 Change PRCB.

• Code: C2653
• Description: EEPROM access error (IU Y)
• Troubleshooting Guides: 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit. 3 Check the harness for proper connection and correct as necessary. 4 Change imaging unit. 5 Change PRCB.

• Code: C2654
• Description: EEPROM access error (IU K)
• Troubleshooting Guides: 1 Clean the connection between the imaging unit and the machine if dirty 2 Reinstall imaging unit. 3 Check the harness for proper connection and correct as necessary. 4 Change imaging unit. 5 Change PRCB.

• Code: C2A01
• Description: EEPROM access error (TC C)
• Troubleshooting Guides: 1 Clean the connection between the toner cartridge and the machine if dirty. 2 Reinstall toner cartridge. 3 Check the harness for proper connection and correct as necessary. 4 Change toner cartridge. 5 Check that CN29 harness on PRCB has a ferrite core. If not, attach the ferrite core to the harness. 6 Change PRCB.

• Code: C2A02
• Description: EEPROM access error (TC M)
• Troubleshooting Guides: 1 Clean the connection between the toner cartridge and the machine if dirty. 2 Reinstall toner cartridge. 3 Check the harness for proper connection and correct as necessary. 4 Change toner cartridge. 5 Check that CN29 harness on PRCB has a ferrite core. If not, attach the ferrite core to the harness. 6 Change PRCB.

• Code: C2A03
• Description: EEPROM access error (TC Y)
• Troubleshooting Guides: 1 Clean the connection between the toner cartridge and the machine if dirty. 2 Reinstall toner cartridge. 3 Check the harness for proper connection and correct as necessary. 4 Change toner cartridge. 5 Check that CN29 harness on PRCB has a ferrite core. If not, attach the ferrite core to the harness. 6 Change PRCB.

• Code: C2A04
• Description: EEPROM access error (TC K)
• Troubleshooting Guides: 1 Clean the connection between the toner cartridge and the machine if dirty. 2 Reinstall toner cartridge. 3 Check the harness for proper connection and correct as necessary. 4 Change toner cartridge. 5 Check that CN29 harness on PRCB has a ferrite core. If not, attach the ferrite core to the harness. 6 Change PRCB.

• Code: C3101
• Description: Fusing roller separation failure
  • With the fusing roller being retracted, the pulse of the fusing roller retraction sensor does not change even after the specified period of time has passed after the fusing retraction motor started rotating. • With the fusing roller being pressed, the pulse of the roller retraction sensor does not change even after the specified period of time has passed after the fusing retraction motor started rotating. • During a pressure operation of the fusing roller, the fusing roller is not at the pressed position even after the roller retraction sensor counts the specified number of pulses after the fusing retraction motor starts rotating.
• Troubleshooting Guides: 1 Check the M12 connector for proper connection and correct as necessary. 2 PS38 I/O check PRCB CN28PRCB-8 (ON) D-25. 3 M12 operation check PRCB CN28PRCB-4 to 5 D-25. 4 Change M12. 5 Change fusing unit. 6 Change PRCB.

• Code: C3201
• Description: Fusing motor failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the M5 connector for proper connection and correct as necessary. 2 Check the loading status of the fusing unit drive, and correct the error as necessary. 3 Check the fusing unit, PRCB for proper connection and correct or change as necessary. 4 M5 operation check PRCB CN34PRCB-2 (REM) PRCB CN34PRCB-5 (LOCK) D-21. 5 Change M5. 6 Change PRCB.

• Code: C3202
• Description: Fusing motor turning at abnormal timing
  • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the M5 connector for proper connection and correct as necessary. 2 Check the loading status of the fusing unit drive, and correct the error as necessary. 3 Check the fusing unit, PRCB for proper connection and correct or change as necessary. 4 M5 operation check PRCB CN34PRCB-2 (REM) PRCB CN34PRCB-5 (LOCK) D-21. 5 Change M5. 6 Change PRCB.

• Code: C3301
• Description: Fusing cooling fan motor/ 1 failure to turn
  • The fan motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM9 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM9 operation check PRCB CN40PRCB-2 (ON) PRCB CN40PRCB-3 (LOCK) D-19. 4 Change FM9. 5 Change PRCB.

• Code: C3302
• Description: Fusing cooling fan motor/ 2,3 failure to turn
  • The fan motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM10 or FM11 connector for proper connection and correct as necessary 2 Check the fan for possible overload and correct as necessary. 3 FM10/FM11 operation check PRCB CN40PRCB-5 (ON) PRCB CN40PRCB-6 (LOCK) D-19. PRCB CN40PRCB-8 (ON) PRCB CN40PRCB-9 (LOCK) D-18. 4 Change FM10/FM11. 5 Change PRCB.

• Code: C3421
• Description: Fusing heaters trouble (heating side)
  • The temperature detected by the heating roller thermistor/C does not reach a predetermined level after the lapse of a predetermined period of time after the heating roller fusing heater lamp lights up. • The difference between the maximum and minimum temperatures detected by the heating roller thermistor/C within a predetermined period of time after the start of a warm-up cycle is below or above a predetermined value. • The temperature detected after a pressure level correction remains under a predetermined level even after the lapse of a predetermined period of time after the start of the temperature detection. • During a warm-up, a zero cross signal cannot be detected after the lapse of a predetermined period of time after the fusing heater is turned ON or OFF.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.

• Code: C3423
• Description: Fusing heaters trouble (pressurizing side)
  • After warm-up operation starts, the fusing pressure roller thermistor does not detect a temperature as high as a predetermined one though a predetermined period of time has elapsed. • The temperature of the pressure roller remains lower than a predetermined level even after the lapse of a predetermined period of time after a temperature correction.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.

• Code: C3461
• Description: Release new fusing unit
  • A new installation is not detected when a new fusing Unit is installed.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, PRCB for proper connection and correct or change as necessary. 3 Reinstall fusing unit. 4 Change fusing unit. 5 Change PRCB.

• Code: C3721
• Description: Fusing abnormally high temperature detection (heating side)
  • The heating roller thermistor continues to detect a temperature higher than a predetermined one for a predetermined period of time. • Hard protection signal L is detected continuously over a predetermined period of time.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.

• Code: C3723
• Description: Fusing abnormally high temperature detection (pressurizing side)
  • The temperature of the pressure roller continues to be higher than a predetermined level for a predetermined period of time after a temperature correction.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.

• Code: C3821
• Description: Fusing abnormally low temperature detection (heating side)
  • The heating roller thermistor continues to detect a temperature lower than a predetermined one for a predetermined period of time. • In the states other than a warm-up operation, a zero cross signal cannot be detected after the lapse of a predetermined period of time after the fusing heater is turned ON or OFF. • The power supply frequency cannot be detected.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.

• Code: C3823
• Description: Fusing abnormally low temperature detection (pressurizing side)
  • The temperature of the pressure roller continues to be lower than a predetermined level for a predetermined period of time after a temperature correction.
• Troubleshooting Guides: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, PRCB and DCPU for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.

• Code: C4151
• Description: Polygon motor rotation trouble (C)
  • The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor. • Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4152
• Description: Polygon motor rotation trouble (M)
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4153
• Description: Polygon motor rotation trouble (Y)
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4154
• Description: Polygon motor rotation trouble (K)
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4551
• Description: Laser malfunction (C)
  • SOS signal is not detected even after the lapse of a given period of time after staring the laser output. • SOS signal is not detected for a given period of time during printing or image stabilization adjustment.
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4552
• Description: Laser malfunction (M)
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4553
• Description: Laser malfunction (Y)
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C4554
• Description: Laser malfunction (K)
• Troubleshooting Guides: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change PHREYB. 4 Change PRCB.

• Code: C5102
• Description: Transport motor’s failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M1 operation check PRCB CN34PRCB-10 (REM) PRCB CN34PRCB-13 (LOCK) D-22. 5 Change M1. 6 Change PRCB.

• Code: C5103
• Description: Transport motor’s turning at abnormal timing
  • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M1 operation check PRCB CN34PRCB-10 (REM) PRCB CN34PRCB-13 (LOCK) D-22. 5 Change M1. 6 Change PRCB.

• Code: C5351
• Description: Power supply cooling fan motor/1’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM5 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM5 operation check PRCB CN30PRCB-11 (ON) PRCB CN30PRCB-12 (LOCK) K-8. 4 Change FM5. 5 Change DCPU. 6 Change PRCB.

• Code: C5353
• Description: Cooling fan motor/2’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM2 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM2 operation check PRCB CN28PRCB-2 (ON) PRCB CN28PRCB-3 (LOCK) D-24. 4 Change FM2. 5 Change PRCB.

• Code: C5354
• Description: Exhaust fan motor’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM4 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM4 operation check PRCB CN3PRCB-14 (ON) PRCB CN3PRCB-16 (LOCK) D-6. 4 Change FM4. 5 Change PRCB.

• Code: C5357
• Description: Cooling fan motor/1’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM1 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check PRCB CN30PRCB-4 (ON) PRCB CN30PRCB-6 (LOCK) K-7. 4 Change FM1. 5 Change PRCB.

• Code: C5371
• Description: MFP board cooling fan motor’s failure to turn
  • The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Troubleshooting Guides: 1 Check the FM6 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM6 operation check PRCB CN44PRCB-1 (REM) PRCB CN44PRCB-3 (LOCK) K-9. 4 Change FM6. 5 Change MFPB.

• Code: CA051
• Description: Standard controller configuration failure
  • The controller of the printer control board (PRCB) is faulty.
• Troubleshooting Guides: 1 Check to see if the following setting has been correctly made: [Service Mode] – [System Settings] – [Image Controller]. If changing the setting, turn OFF the power switch and turn it ON again after 10 seconds or more. 2 Check the connectors of the MFP board (MFPB) for proper connection and correct as necessary. 3 Change MFPB.

• Code: CA052
• Description: Controller hardware error
  • A controller hardware error is detected in the network I/F.
• Troubleshooting Guides: 1 Check to see if the following setting has been correctly made: [Service Mode] – [System Settings] – [Image Controller]. If changing the setting, turn OFF the power switch and turn it ON again after 10 seconds or more. 2 Check the connectors of the MFP board (MFPB) for proper connection and correct as necessary. 3 Change MFPB.

• Code: CA053
• Description: Controller start failure
  • A controller start failure is detected in the controller interface.
• Troubleshooting Guides: 1 Check to see if the following setting has been correctly made: [Service Mode] – [System Settings] – [Image Controller]. If changing the setting, turn OFF the power switch and turn it ON again after 10 seconds or more. 2 Check the connectors of the MFP board (MFPB) for proper connection and correct as necessary. 3 Change MFPB.

• Code: CC151
• Description: ROM contents error upon startup (MSC)
  • A fault is detected in a sequence of ROM contents check of the MSC (PRCB) during starting
• Troubleshooting Guides: 1 Check the ROM version. 2 Rewrite the firmware. 3 Replace the appropriate board.

• Code: CC153
• Description: ROM contents error upon startup (PRT)
  • A fault is detected in a sequence of ROM contents check of the mechanical control board (MFPB) during starting.
• Troubleshooting Guides: 1 Check the ROM version. 2 Rewrite the firmware. 3 Replace the appropriate board.

• Code: CC155
• Description: Finisher ROM error
• Troubleshooting Guides:

• Code: CC163
• Description: ROM contents error (PRT)
  • The wrong model of firmware is detected in the engine during the initial connection to the engine is being checked.
• Troubleshooting Guides: 1 Rewrite the firmware. 2 Change PRCB 2.1. Turn OFF the power switch and replace the current PRCB with a new one. (When using a PRCB of another machine in service, be sure to use a PRCB installed in the same model.) 2.2. Update the PRCB firmware. 2.3. After completing the firmware update, turn OFF and ON the power switch and check to see that warm-up is started. 2.4. When the trouble cannot be solved, reinstall the removed PRCB to the original board. NOTE • When taking the above steps, check whether PRCB is defective or not without replacing the SV ERB. 3 Change SV ERB 3.1. Replace the current SV ERB with a new one. 3.2. Turn ON the power switch and check to see that warm-up is started. (One minute is spent to prepare the new SV ERB for use. During the period, the control panel backlight stays off.) 3.3. Make the specified readjustments. 4 If the above actions do not solve the problem, contact KMBT.

• Code: CC164
• Description: ROM contents error (MSC)
  • The wrong model of firmware is detected in the MFP board when the power switch is turned ON.
• Troubleshooting Guides: 1 Check the ROM version. 2 Rewrite the firmware. 3 Replace the corresponding board. 4 When not reviving even if the above-mentioned procedure is done, contact the responsible people of KMBT.

• Code: CD002
• Description: JOB RAM save error
  • The error in save of JOB data to the memory/ hard disk and its read error are detected.
• Troubleshooting Guides: 1 Check the hard disk connector for proper connection and correct as necessary. 2 Format hard disk. 3 Change hard disk. 4 Change MFPB.

• Code: CD004
• Description: Hard disk access error
  • Unable to communicate between the hard disk and printer control board (PRCB).
• Troubleshooting Guides: Check the hard disk connector for proper connection and correct as necessary. 2 Reinstall the hard disk. 3 Change hard disk. 4 Change MFPB.

• Code: CD005 … CD030
• Description: Hard disk error
• Troubleshooting Guides: Check the hard disk connector for proper connection and correct as necessary. 2 Reinstall the hard disk. 3 Change hard disk. 4 Change MFPB.

• Code: CD201
• Description: Memory error
• Troubleshooting Guides: Check to see if the memory on MFPB is installed correctly. 2 Change the memory on MFPB. 3 Change MFPB.

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