• 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.
• Remedy: 1 Check the connector between M1-PRCB CN31 for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 M1 operation check PRCB CN31-2 (REM) PRCB CN31-5 (LOCK) bizhub C554 18-J bizhub C454 16-J. 4 Replace M1. 5 Replace 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.
• Remedy: 1 Check the connector between M1-PRCB CN31 for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 M1 operation check PRCB CN31-2 (REM) PRCB CN31-5 (LOCK) bizhub C554 18-J bizhub C454 16-J. 4 Replace M1. 5 Replace PRCB.

• Code: C5304
• Description: Fusing power supply cooling fan’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Remedy: 1 Check the connector between FM12-EXCB CN6 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM12 operation check EXCB CN6-1 (REM) EXCB CN6-3 (LOCK) 23-T 4 Replace FM12. 5 EXCB ICP1 conduction check. 6 Replace EXCB. 7 Replace PRCB.

• Code: C5306
• Description: IH coil cooling fan’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Remedy: 1 Check the connector between FS7-relay CN77-EXCB CN5 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM7 operation check EXCB CN5-1 (REM) EXCB CN5-3 (LOCK) 23-T. 4 Replace FM7. 5 EXCB ICP1 conduction check. 6 Replace EXCB. 7 Replace PRCB.

• 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 fan remains stationary.
• Remedy: 1 Check the connector between FM1-relay CN26-PRCB CN18 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check PRCB CN18-13 (REM) PRCB CN18-15 (LOCK) 7-C. 4 Replace FM1. 5 PRCB ICP2 conduction check. 6 Replace PRCB.

• Code: C5354
• Description: Ozone fan’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Remedy: 1 Check the connector between FM13-relay CN165- PRCB CN23 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM13 operation check PRCB CN23-10 (REM) PRCB CN23-12 (LOCK) 5-C. 4 Replace FM13. 5 PRCB ICP19 conduction check. 6 Replace PRCBce PRCB.

• Code: C5355
• Description: Toner bottle cooling fan’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Remedy: 1 Check the connector between FM4-relay CN111- PRCB CN36 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM4 operation check PRCB CN36-2 (REM) PRCB CN36-3 (LOCK) 26-C. 4 Replace FM4. 5 PRCB ICP18 conduction check. 6 Replace PRCB.

• Code: C5358
• Description: Fusing power supply cooling fan’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Remedy: 1 Check the connector between FM12-EXCB CN6 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM12 operation check EXCB CN6-1 (REM) 23-TM). 4 Replace FM12. 5 EXCB ICP1 conduction check. 6 Replace EXCB. 7 Replace PRCB.