[SOLVED] Quick fix Konica-Minolta C351 list error codes

[SOLVED] Quick fix Konica-Minolta C351 list error codes

– Compatible Printer model: Konica-Minolta bizhub C351
– Konica-Minolta bizhub C351 Error Codes with quick guides:

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

• Code: C0102
• Description: LCT vertical transport motor malfunction
• Troubleshooting Guides:

• Code: C0204
• Description: Tray 2 elevator failure
  • The lift-up 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 M101 connector for proper connection and correct as necessary. 2 Check the connector of M101 for proper drive coupling and correct as necessary. 3 PC115 I/O check PWB-Z PJ6Z-3 (ON) T to U-26. 4 M101 operation check PWB-Z PJ4Z-4 to 5 M-24. 5 Change PWB-Z.

• Code: C0206
• Description: Tray 3 elevator failure
• Troubleshooting Guides:

• Code: C0208
• Description: Tray 4 elevator failure
• Troubleshooting Guides:

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

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

• Code: C0211
• Description: Manual tray rise descent error
  • The bypass lift-up sensor is not blocked even when the tray 2 vertical 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 bypass lift-up sensor is not unblocked even when the tray 2 vertical 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 M103 connector for proper connection and correct as necessary. 2 Check the connector of M103 for proper drive coupling and correct as necessary. 3 PC115 I/O check PWB-Z PJ7Z<A>-11 (ON) T to U-25 4 M103 operation check PWB-Z PJ5Z-5 to 8 T to U-22 5 Change PWB-Z.

• 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M12 operation check PWB-MC PJ13MC-7 (REM) PWB-MC PJ13MC-9 (LOCK) C to D-2. 4 Change PWB-MC.

• Code: C0351
• Description: Paper 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M26 operation check PWB-MC PJ7MC-8 (REM) PWB-MC PJ7MC-10 (LOCK) K-8. 4 Change PWB-MC.

• Code: C1180
• Description: Finishing option transport system malfunction
• Troubleshooting Guides:

• Code: C1181
• Description: Finishing option Paddle Motor malfunction
• Troubleshooting Guides:

• Code: C1182
• Description: Finishing option Shift Motor mechanism malfunction
• Troubleshooting Guides:

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

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

• Code: C1192
• Description: Finishing option Front Aligning Motor malfunction
• Troubleshooting Guides:

• Code: C1193
• Description: Finishing option Rear Aligning Motor malfunction
• Troubleshooting Guides:

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

• Code: C11A2
• Description: Finishing option Storage Roller pressure/retraction failure
• Troubleshooting Guides:

• Code: C11A4
• Description: Finishing option Exit Motor malfunction
• Troubleshooting Guides:

• Code: C11B0
• Description: Finishing option Stapler Unit CD drive failure
• Troubleshooting Guides:

• Code: C11B1
• Description: Finishing option Stapler Unit Slide Motor malfunction
• Troubleshooting Guides:

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

• Code: C11B3
• Description: Finishing option stapling mechanism malfunction 2
• Troubleshooting Guides:

• Code: C11B4
• Description: Finishing option Staple/Folding Motor malfunction
• Troubleshooting Guides:

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

• Code: C11C1
• Description: Finishing option Punch Cam Motor drive failure
• Troubleshooting Guides:

• Code: C11C2
• Description: Finishing option Punch Unit Board malfunction
• Troubleshooting Guides:

• Code: C11C3
• Description: Finishing option Punch Side Registration Motor malfunction
• Troubleshooting Guides:

• Code: C11C4
• Description: Finishing option Punch Motor malfunction
• Troubleshooting Guides:

• Code: C11C5
• Description: Finishing option Punch Sensor malfunction
• Troubleshooting Guides:

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

• Code: C2151
• Description: 2nd Image Transfer Roller pressure/retraction failure
  • The 2nd Image Transfer Pressure Position Sensor is not activated (retracted position) within 2 sec. after the 2nd Image Transfer Pressure/Retraction Motor has started turning during a sequence of the 2nd Image Transfer Roller’s retracting motion. • The 2nd Image Transfer Pressure Position Sensor is not deactivated (pressed position) within 2 sec. after the 2nd Image Transfer Pressure/Retraction Motor has started turning during a sequence of the 2nd Image Transfer Roller’s pressing motion.
• Troubleshooting Guides: 1 Check the M13 connector for proper connection and correct as necessary. 2 PC29 I/O check PWB-MC PJ24MC-9 (ON) C to D-3. 3 M13 operation check PWB-MC PJ13MC-1 (REM) C to D-2. 4 Change PWB-MC.

• Code: C2152
• Description: Image Transfer Belt pressure/ retraction failure
  • The 1st Image Transfer Retraction Position Sensor is not activated (retracted position) within 5 sec. after the 1st Image Transfer Pressure/ Retraction Motor has started turning during a sequence of the Transfer Belt’s retracting motion. • The 1st Image Transfer Retraction Position Sensor is not deactivated (pressed position) within 1 sec. after the 1st Image Transfer Pressure/ Retraction Motor has started turning during a sequence of the Transfer Belt’s pressing motion.
• Troubleshooting Guides: 1 Check the M11 connector for proper connection and correct as necessary. 2 PC12 I/O check PWB-MC PJ20MC-6 (ON) C to D-22. 3 M11 operation check PWB-MC PJ7MC-1 to 4 K-7. 4 Change PWB-MCPWB-MC.

• Code: C2160
• Description: Cyan PC Drum Charge Corona malfunction
  • An output is automatically produced from the PC Drum Charge Corona of each color when the malfunction resetting procedure is performed after C2164 (PC Drum Charge Corona malfunction) has been detected. The SCD signal is detected for a continuous 0.5-sec. period at this time.
• Troubleshooting Guides: 1 Check the Imaging Unit contact and correct or clean as necessary. 2 Check the HV1 contact and correct or clean as necessary. 3 Change Imaging Unit. 4 Change HV1. 5 Change PWB-MC.

• Code: C2161
• Description: Magenta PC Drum Charge Corona malfunction
• Troubleshooting Guides: 1 Check the Imaging Unit contact and correct or clean as necessary. 2 Check the HV1 contact and correct or clean as necessary. 3 Change Imaging Unit. 4 Change HV1. 5 Change PWB-MC.

• Code: C2162
• Description: Yellow PC Drum Charge Corona malfunction
• Troubleshooting Guides: 1 Check the Imaging Unit contact and correct or clean as necessary. 2 Check the HV1 contact and correct or clean as necessary. 3 Change Imaging Unit. 4 Change HV1. 5 Change PWB-MC.

• Code: C2163
• Description: Black PC Drum Charge Corona malfunction
• Troubleshooting Guides: 1 Check the Imaging Unit contact and correct or clean as necessary. 2 Check the HV1 contact and correct or clean as necessary. 3 Change Imaging Unit. 4 Change HV1. 5 Change PWB-MC.

Solve Konica-Minolta bizhub C351 Error codes

• Code: C2164
• Description: PC Drum Charge Corona malfunction
  • The SCD signal is detected for a continuous 0.5sec. period while the PC Drum Charge Corona is being energized.
• Troubleshooting Guides: 1 Check the Imaging Unit contact and correct or clean as necessary. 2 Check the HV1 contact and correct or clean as necessary. 3 Change Imaging Unit. 4 Change HV1. 5 Change PWB-MC.

• Code: C2251
• Description: K 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 connector of motor for proper connection and correct as necessary. 2 Check the connector of motor for proper drive coupling and correct as necessary. 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-3 (DC24 V) H-2. 4 M7 operation check PWB-MC PJ33MC-3 (REM) PWB-MC PJ33MC-6 (LOCK) C to D-18. 5 Change PWB-MC.

• Code: C2252
• Description: K 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 M7 operation check PWB-MC PJ33MC-3 (REM) PWB-MC PJ33MC-6 (LOCK) C to D-18. 2 Change PWB-MC.

• Code: C2253
• Description: Color PC Drum 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 connector of motor for proper connection and correct as necessary. 2 Check the connector of motor for proper drive coupling and correct as necessary. 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-7 (DC24 V) H-2. 4 M5 operation check (C0018) PWB-MC PJ33MC-10 (REM) PWB-MC PJ33MC-13 (LOCK) C to D- 18 to 19. 5 Change PWB-MC.

• Code: C2254
• Description: Color PC Drum 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 M5 operation check PWB-MC PJ33MC-10 (REM) PWB-MC PJ33MC-13 (LOCK) C to D- 18 to 19. 2 Change PWB-MC.

• Code: C2255
• Description: Color Developing 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 connector of motor for proper connection and correct as necessary. 2 Check the connector of motor for proper drive coupling and correct as necessary. 3 Check the PU-1 connector for proper connection and correct as necessary. PU1 PJ5PU1-11 (DC24 V) P-5. 4 M6 operation check PWB-MC PJ3MC-3 (REM) PWB-MC PJ3MC-6 (LOCK) K-15. 5 Change PU-1.

• Code: C2256
• Description: Color Developing 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 M6 operation check PWB-MC PJ3MC-3 (REM) PWB-MC PJ3MC-6 (LOCK) K-15. 2 Change PWB-MC.

• Code: C2257
• Description: Cleaning Brush Motor 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 M22 connector for proper connection and correct as necessary. 2 Check M22 for proper drive coupling and correct as necessary. 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-9 (DC24 V) H-2. 4 M22 operation check PWB-MC PJ37MC-3 (REM) PWB-MC PJ37MC-6 (LOCK) K-3. 5 Change PWB-M.

• Code: C2258
• Description: Cleaning Brush 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 M22 operation check PWB-MC PJ37MC-3 (REM) PWB-MC PJ37MC-6 (LOCK) K-3. 2 Change PWB-MC.

• Code: C2351
• Description: Toner Suction Fan Motor/K’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 M23 connector for proper connection and correct as necessary. 2 Check M23 for proper drive coupling and correct as necessary. 3 M23 operation check PWB-MC PJ15MC-10 (REM) PWB-MC PJ15MC-12 (LOCK) C to D-21. 4 Change PWB-MC.

• Code: C2352
• Description: Toner 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 M20 connector for proper connection and correct as necessary. 2 Check M20 for proper drive coupling and correct as necessary. 3 M20 operation check PWB-MC PJ15MC-1 (REM) PWB-MC PJ15MC-3 (LOCK) C to D- 20 to 21. 4 Change PWB-MC.

• Code: C2451
• Description: New Transfer Belt Unit resetting failure
  • A new installation is not detected when a new Transfer Cleaner Unit (Image Transfer Belt Unit) is installed.
• Troubleshooting Guides: 1 Reinstall Unit. 2 Change PWB-MC.

• Code: C2551
• Description: Abnormally low toner density detected Cyan TCR Sensor
  • T/C 0.21 % or less is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Perform image troubleshooting procedure if image density is low. 2 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 3 Correct the TCR Sensor spring moving part if faulty. 4 Clean the TCR Sensor LED if dirty. 5 Change TCR Sensor C/M/Y. 6 M3, M4 operation check PWB-MC PJ8MC-1 to 4 PWB-MC PJ8MC-5 to 8. 7 Change Imaging Unit. 8 Change PWB-MC. 9 Change PWB-MFPC.

• Code: C2552
• Description: Abnormally high toner density detected Cyan TCR Sensor
  • T/C 15.5 % or more is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Change TCR Sensor C/M/Y. 5 Change Imaging Unit. 6 Change PWB-MC. 7 Change PWB-MFPC.

• Code: C2553
• Description: Abnormally low toner density detected Magenta TCR Sensor
  • T/C 0.21 % or less is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Perform image troubleshooting procedure if image density is low. 2 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 3 Correct the TCR Sensor spring moving part if faulty. 4 Clean the TCR Sensor LED if dirty. 5 Change TCR Sensor C/M/Y. 6 M3, M4 operation check PWB-MC PJ8MC-1 to 4 PWB-MC PJ8MC-5 to 8. 7 Change Imaging Unit. 8 Change PWB-MC. 9 Change PWB-MFPC.

• Code: C2554
• Description: Abnormally high toner density detected Magenta TCR Sensor
  • T/C 15.5 % or more is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Change TCR Sensor C/M/Y. 5 Change Imaging Unit. 6 Change PWB-MC. 7 Change PWB-MFPC.

• Code: C2555
• Description: Abnormally low toner density detected Yellow TCR Sensor
  • T/C 0.21 % or less is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Perform image troubleshooting procedure if image density is low. 2 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 3 Correct the TCR Sensor spring moving part if faulty. 4 Clean the TCR Sensor LED if dirty. 5 Change TCR Sensor C/M/Y. 6 M3, M4 operation check PWB-MC PJ8MC-1 to 4 PWB-MC PJ8MC-5 to 8. 7 Change Imaging Unit. 8 Change PWB-MC. 9 Change PWB-MFPC.

• Code: C2556
• Description: Abnormally high toner density detected Yellow TCR Sensor
  • T/C 15.5 % or more is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Change TCR Sensor C/M/Y. 5 Change Imaging Unit. 6 Change PWB-MC. 7 Change PWB-MFPC.

• Code: C2557
• Description: Abnormally low toner density detected Black TCR Sensor
  • T/C 3 % or less is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Perform image troubleshooting procedure if image density is low. 2 M3 operation check PWB-MC PJ8MC-1 to 4 C to D-14 3 Change Imaging Unit. 4 Change PWB-MC. 5 Change PWB-MFPC.

• Code: C2558
• Description: Abnormally high toner density detected Black TCR Sensor
  • T/C 12 % or more is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
• Troubleshooting Guides: 1 Correct the TCR connection on the underside of the Imaging Unit if faulty. 2 Clean or correct each contact of the Imaging Unit if faulty. 3 Change Imaging Unit. 4 Change PWB-MC. 5 Change PWB-MFPC.

• 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 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Reinstall Imaging Unit C/M/Y. 5 M3, M4 operation check PWB-MC PJ8MC-1 to 4 PWB-MC PJ8MC-5 to 8 C to D-14. 6 Change Imaging Unit. 7 Change PWB-MC. 8 Change PWB-MFPC.

• Code: C255A
• Description: Magenta TCR Sensor adjustment failure
• Troubleshooting Guides: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Reinstall Imaging Unit C/M/Y. 5 M3, M4 operation check PWB-MC PJ8MC-1 to 4 PWB-MC PJ8MC-5 to 8 C to D-14. 6 Change Imaging Unit. 7 Change PWB-MC. 8 Change PWB-MFPC.

• Code: C255B
• Description: Yellow TCR Sensor adjustment failure
• Troubleshooting Guides: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Reinstall Imaging Unit C/M/Y. 5 M3, M4 operation check PWB-MC PJ8MC-1 to 4 PWB-MC PJ8MC-5 to 8 C to D-14. 6 Change Imaging Unit. 7 Change PWB-MC. 8 Change PWB-MFPC.

• Code: C255C
• Description: Black TCR Sensor adjustment failure
• Troubleshooting Guides: 1 Correct the TCR connection on the underside of the Imaging Unit if faulty. 2 Clean or correct each contact of the Imaging Unit if faulty. 3 Change Imaging Unit. 4 Change PWB-MC. 5 Change PWB-MFPC.

• Code: C2651
• Description: Cyan Imaging Unit EEPROM access error
  • A condition of “EEPROM is not connected” or “There is an access error” is detected in EEPROM of the Imaging Unit.
• Troubleshooting Guides: 1 Clean the connection between the Imaging Unit and the machine if dirty 2 Reinstall Imaging Unit C/M/Y/K. 3 Change Imaging Unit. 4 Change PWB-MC.

• Code: C2652
• Description: Magenta Imaging Unit EEPROM access error
• Troubleshooting Guides: 1 Clean the connection between the Imaging Unit and the machine if dirty 2 Reinstall Imaging Unit C/M/Y/K. 3 Change Imaging Unit. 4 Change PWB-MC.

• Code: C2653
• Description: Yellow Imaging Unit EEPROM access error
• Troubleshooting Guides: 1 Clean the connection between the Imaging Unit and the machine if dirty 2 Reinstall Imaging Unit C/M/Y/K. 3 Change Imaging Unit. 4 Change PWB-MC.

• Code: C2654
• Description: Black Imaging Unit EEPROM access error
• Troubleshooting Guides: 1 Clean the connection between the Imaging Unit and the machine if dirty 2 Reinstall Imaging Unit C/M/Y/K. 3 Change Imaging Unit. 4 Change PWB-MC.

• Code: C2655
• Description: Cyan LPH correction data download failure
  • An error is detected while the LPH correction data is being downloaded from EEPROM of LPH to PWB-MFPC when the Main Power Switch is turned ON.
• Troubleshooting Guides: 1 Correct the harness connection between LPH and PWB-LED if faulty. 2 Correct the harness connection between PWBLED and PWB-MFPC if faulty. 3 Change LPH Assy. 4 Change PWB-LED. 5 Change PWB-MFPC. 6 Change PWB-MC.

• Code: C2656
• Description: Magenta LPH correction data download failure
• Troubleshooting Guides: 1 Correct the harness connection between LPH and PWB-LED if faulty. 2 Correct the harness connection between PWBLED and PWB-MFPC if faulty. 3 Change LPH Assy. 4 Change PWB-LED. 5 Change PWB-MFPC. 6 Change PWB-MC.

• Code: C2657
• Description: Yellow LPH correction data download failure
• Troubleshooting Guides: 1 Correct the harness connection between LPH and PWB-LED if faulty. 2 Correct the harness connection between PWBLED and PWB-MFPC if faulty. 3 Change LPH Assy. 4 Change PWB-LED. 5 Change PWB-MFPC. 6 Change PWB-MC.

• Code: C2658
• Description: Black LPH correction data download failure
• Troubleshooting Guides: 1 Correct the harness connection between LPH and PWB-LED if faulty. 2 Correct the harness connection between PWBLED and PWB-MFPC if faulty. 3 Change LPH Assy. 4 Change PWB-LED. 5 Change PWB-MFPC. 6 Change PWB-MC.

• Code: C3101
• Description: Fusing Pressure Roller pressure/retraction failure
  • No change is observed in the encoder sensor pulse even after the lapse of 0.5 sec. after the Fusing Pressure/Retraction Motor has started turning for a sequence of the Fusing Pressure Roller’s retracting motion. • No change is observed in the encoder sensor pulse even after the lapse of 0.5 sec. after the Fusing Pressure/Retraction Motor has started turning for a sequence of the Fusing Pressure Roller’s pressing motion. • The Fusing Pressure Position Sensor is not activated (pressed position) even when 30 encoder sensor pulses are counted after the Fusing Pressure/Retraction Motor has started turning for a sequence of the Fusing Pressure Roller’s pressing motion.
• Troubleshooting Guides: 1 Check the M9 connector for proper connection and correct as necessary. 2 PC33 I/O check PWB-MC PJ26MC-12 (ON). 3 PC33 operation check. 4 M19 operation check PWB-MC PJ14MC-5 to 6 C to D-6. 5 Change Fusing Unit. 6 Change PWB-MC.

• Code: C3201
• Description: Fusing Drive 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 M2 connector for proper connection and correct as necessary. 2 Check the Fusing Unit drive for possible overload and correct as necessary. 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-5 (DC24 V) H-2. 4 M2 operation check PWB-MC PJ31MC-10 (REM) PWB-MC PJ31MC-13 (LOCK) C to D-17. 5 Change PWB-MC.

• Code: C3202
• Description: Fusing Drive 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 M2 operation check PWB-MC PJ31MC-10 (REM) PWB-MC PJ31MC-13 (LOCK) C to D-17. 2 Change PWB-MC.

• Code: C3301
• Description: Fusing Cooling Fan Motor/1 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M9 operation check PWB-MC PJ6MC-4 (REM) PWB-MC PJ6MC-6 (LOCK) K-9. 4 Change PU-1.

• Code: C3302
• Description: Fusing Cooling Fan Motor/1 or Fusing Cooling Fan Motor/2 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M15, M16 operation check PWB-MC PJ15MC-4 (REM) PWB-MC PJ15MC-6 (LOCK) PWB-MC PJ15MC-7 (REM) PWB-MC PJ15MC-9 (LOCK) C to D-21. 4 Change PWB-MC.

• Code: C3451
• Description: Heating Roller warm-up failure
  • The temperature of the Heating Roller does not reach 100 °C within 50 sec. after the Heating Roller Heater Lamp has been turned ON. • The temperature of the Heating Roller does not reach 100 °C and that of the Fusing Pressure Roller does not reach 195 °C within 200 sec. after the Heating Roller Heater Lamp has been turned ON. • The voltage of the Heating Roller Thermistor does not increase by five steps within 20 sec. after the Heating Roller Heater Lamp has been turned ON. • No zero cross signal is detected even with the lapse of 1 sec. or more after the Heating Roller Heater Lamp has been turned ON.
• Troubleshooting Guides: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.

• Code: C3452
• Description: Fusing Pressure Roller warm-up failure
  • The voltage of the Fusing Pressure Roller Thermistor does not increase by five steps within 20 sec. after the predrive of the Fusing Roller has been started during a warm-up cycle.
• Troubleshooting Guides: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.

• Code: C3461
• Description: New Fusing Unit resetting failure
  • A new installation is not detected when a new Fusing Unit is installed.
• Troubleshooting Guides: 1 Reinstall Unit. 2 Change PWB-MC.

• Code: C3751
• Description: Heating Roller abnormally high temperature
  • A temperature of 225 °C or more of the Heating Roller is detected for 1 sec. or more.
• Troubleshooting Guides: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.

• Code: C3752
• Description: Fusing Pressure Roller abnormally high temperature
  • A temperature of 190 °C or more of the Fusing Pressure Roller is detected for 1 sec. or more before the start of the heater temperature control. • A temperature of 215 °C or more of the Fusing Pressure Roller is detected for 1 sec. or more after the start of the heater temperature control.
• Troubleshooting Guides: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.

• Code: C3851
• Description: Heating Roller abnormally low temperature
  • No zero cross signal is detected even with the lapse of 1 sec. or more during a standby state, print cycle, or Power Save. • A temperature of 120 °C or less of the Heating Roller is detected for 1 sec. or more during a standby state. • A temperature of 120 °C or less of the Heating Roller is detected for 1 sec. or more during a print cycle. • A temperature of 70 °C or less of the Heating Roller is detected for 1 sec. or more during Power Save.
• Troubleshooting Guides: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.

• Code: C3852
• Description: Fusing Pressure Roller abnormally low temperature
  • . A temperature of 80 °C or less of the Fusing Pressure Roller is detected for 1 sec. or more during a standby state. • A temperature of 80 °C or less of the Fusing Pressure Roller is detected for 1 sec. or more during a print cycle. • A temperature of 80 °C or less of the Fusing Pressure Roller is detected for 1 sec. or more during Power Save.
• Troubleshooting Guides: 1 Check the Fusing Unit for correct installation (whether it is secured in position). 2 Check the Fusing Unit, PWB-MC and PU1 for proper connection and correct or change as necessary. 3 Change Fusing Unit. 4 Change PWB-MC. 5 Change PU1.

• Code: C4705
• Description: Printer Time Out
  • No image data is output from the MFP Control Board (PWB-MFPC).
• Troubleshooting Guides: 1 Select Service Mode – State Confirmation – Memory/HDD Adj. – Memory Bus Check – Memory-PRT. 2 Check the connectors on PWB-MFPC for proper connection and correct as necessary. 3 Change PWB-MFPC.

• Code: C4761
• Description: Compression hardware timeout
  • The hardware involved with the compression function offered by the MFP Control Board (PWBMFPC) does not respond.
• Troubleshooting Guides: Change PWB-MFPC

• Code: C4765
• Description: Extraction hardware timeout
  • The hardware involved with the extraction function offered by the MFP Control Board (PWBMFPC) does not respond.
• Troubleshooting Guides: Change PWB-MFPC

• Code: C4770 … C4773
• Description: JBIG Error
  • Memory of the MFP Control Board (PWB-MFPC) is faulty.
• Troubleshooting Guides: Change PWB-MFPC

• Code: C4780 … C4783
• Description: The MFP Control Board (PWB-MFPC) is faulty.
• Troubleshooting Guides: Change PWB-MFPC

• Code: C5102
• Description: Main 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 M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-1 (DC24 V) H-2. 4 M1 operation check PWB-MC PJ31MC-3 (REM) PWB-MC PJ31MC-6 (LOCK) C to D-17. 5 Change PWB-MC. 6 Change PU1.

• Code: C5103
• Description: Main 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 M1 operation check PWB-MC PJ31MC-3 (REM) PWB-MC PJ31MC-6 (LOCK) C to D-17. 2 Change PWB-MC. 3 Change PU1.

• Code: C5351
• Description: Power Supply 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M21 operation check PU1 PJ10PU1-3 (LOCK) M to N-1 to 2. 4 Change PU-1.

• 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M10 operation check PWB-MC PJ7MC-6 (REM) PWB-MC PJ7MC-7 (LOCK) K-8. 4 Change PWB-MC.

• Code: C5354
• Description: Ozone Ventilation 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M18 operation check PWB-MC PJ6MC-1 (REM) PWB-MC PJ6MC-3 (LOCK) K-8 to 9. 4 Change PWB-MC.

• Code: C5355
• Description: Cooling Fan Motor 3’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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M25 operation check PWB-MC PJ40MC-1 (REM) PWB-MC PJ40MC-3 (LOCK) C to D-12. 4 Change PWB-MC.

• Code: C5356
• 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M24 operation check PWB-MC PJ40MC-4 (REM) PWB-MC PJ40MC-6 (LOCK) C to D-12. 4 Change PWB-MC.

• Code: C5370
• Description: MFP Control 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M27 operation check PWB-SIF PJ08SIF-3 (LOCK) M-17. 4 Change PWB-MC2.

• Code: C6102
• Description: Scanner Home Sensor malfunction
  • The Scanner Home Sensor is unable to detect the Scanner located at its home position. • The Scanner Home Sensor is unable to detect a Scanner even when the Scanner Motor has been driven to move the Scanner over the maximum traveling distance. • The Scanner Home Sensor detects the Scanner when the Scanner has moved 5 mm from the position, at which it blocks the Scanner Home Sensor.
• Troubleshooting Guides: 1 Correct or change the Scanner drive (cable, pulley, gear, belt) if it is faulty. 2 Correct the Scanner Motor set screw if loose. 3 Adjust “Image Position Leading Edge” and “Feed Direction Adjustment.” 4 Check the PC201, M201, PWB-IC and PWB-C connector for proper connection and correct as necessary. 5 PC201 I/O check PWB-C PJ11C-8 (ON) N-13 6 M201 operation check PWB-IC PJ3IC-1 (REM) PWB-IC PJ3IC-3 (LOCK) S-9. 7 Change PWB-IC. 8 Change PWB-C.

• Code: C6103
• Description: Scanner overrun failure
  • The Scanner Home Sensor detects the Scanner at its home position during a period of time that begins with the time when a prescan command and a scan preparation command are executed and ends when a home return command is executed.
• Troubleshooting Guides: 1 Correct or change the Scanner drive (cable, pulley, gear, belt) if it is faulty. 2 Correct the Scanner Motor set screw if loose. 3 Adjust “Image Position Leading Edge” and “Feed Direction Adjustment.” 4 Check the PC201, M201, PWB-IC and PWB-C connector for proper connection and correct as necessary. 5 PC201 I/O check PWB-C PJ11C-8 (ON) N-13 6 M201 operation check PWB-IC PJ3IC-1 (REM) PWB-IC PJ3IC-3 (LOCK) S-9. 7 Change PWB-IC. 8 Change PWB-C.

• Code: C6301
• Description: Scanner 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 connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M202 operation check PWB-C PJ81C-2 (REM) PWB-C PJ81C-3 (LOCK) N-10. 4 Change PWB-MC.

• Code: C6704
• Description: Scanner Time Out
  • Image data is not input from the Image Processing Board (PWB-C) to the MFP Control Board (PWB-MFPC).
• Troubleshooting Guides: 1 Select ?gService Mode – ?gState Confirmation – ?gMemory/HDD Adj. – ?gMemory Bus Check – Scanner-Memory. 2 Check the connectors between PWB-C and PWB-CF for proper connection and correct as necessary. 3 Change PWB-MFPC. 4 Change PWB-C.

• Code: C6751
• Description: CCD clamp/gain adjustment failure
  • The adjustment value is 0 or 255 during a CCD clamp adjustment. • The peak value of the output data is 64 or less during a CCD gain adjustment
• Troubleshooting Guides: 1 Correct the harness connection between PWB-A and PWB-C if faulty. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, CCD surface, and shading sheet if dirty 4 Correct reflective mirror of the Scanner if faulty, or change Scanner. 5 Change PWB-A. 6 Change PWB-C.

• Code: C9401
• Description: Exposure Lamp’s failure to turn ON
  • The output from the CCD Sensor is a predetermined value or less during CCD Sensor gain adjustment.
• Troubleshooting Guides: 1 Check the flat cable for proper connection and correct or change as necessary. 2 Change Scanner Assy. 3 Change PWB-C.

• Code: C9402
• Description: Exposure Lamp turning ON at abnormal timing
  • The average output value of the CCD Sensor with the Scanner at its standby position is a predetermined value or more at the end of a scan job.
• Troubleshooting Guides: 1 Check the flat cable for proper connection and correct or change as necessary. 2 Change Scanner Assy. 3 Change PWB-C.

• 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?h – System – Image Controller Setting.?h If the setting is changed, be sure to turn OFF and ON the Main Power Switch. 2 Check the connectors of the MFP Control Board (PWB-MFPC) for proper connection and correct as necessary. 3 Change PWB-MFPC.

• Code: CA052
• Description: Controller hardware error
  • A controller hardware error is detected in the network I/F.
• Troubleshooting Guides:

• Code: CA053
• Description: Controller start failure
  • A controller start failure is detected in the controller interface.
• Troubleshooting Guides:

• Code: CB001 … CB119
• Description: FAX Board Error
• Troubleshooting Guides:

• Code: CD004 … CD011
• Description: HDD error
• Troubleshooting Guides:

• Code: CF001 … CFF15
• Description: MFP Control Board error
• Troubleshooting Guides:

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