• Code: C4301
• Description: PH cooling fan motor failure to turn
  • The fan motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Remedy: 1 Check the FM14 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM14 operation check REYB PH CN4REYB PH-1 (REM) REYB PH CN4REYB PH-3 (LOCK) B-7. 4 Change FM14. 5 Change REYB/PH. 6 Change DCPU.

• Code: C4501
• Description: Laser malfunction
  • 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 IDC sensor adjustment.
• Remedy: 1 Check the connector for proper connection and correct as necessary. 2 Change PH unit. 3 Change REYB/PH. 4 Change PRCB.

• Code: C5104
• Description: Transfer belt 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 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 CN13PRCB-3 (REM) PRCB CN13PRCB-6 (LOCK) K-11. 5 Change M1. 6 Change PRCB.

• Code: C5105
• Description: Transfer belt 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 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 CN13PRCB-3 (REM) PRCB CN13PRCB-6 (LOCK) K-11. 5 Change M1. 6 Change PRCB.

• Code: C5304
• Description: IH 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.
• Remedy: 1 Check the FM10 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM10 operation check PRCB CN26PRCB-4 (REM) PRCB CN26PRCB-6 (LOCK) C-16. 4 Change FM10. 5 Change PRCB.

• Code: C5305
• Description: IH 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.
• Remedy: 1 Check the FM11 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM11 operation check PRCB CN26PRCB-7 (REM) PRCB CN26PRCB-9 (LOCK) C-16. 4 Change FM11. 5 Change PRCB.

• Code: C5306
• Description: IH 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.
• Remedy: 1 Check the FM12 connector for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM12 operation check PRCB CN26PRCB-10 (REM) PRCB CN26PRCB-12 (LOCK) C-15 to 16. 4 Change FM12. 5 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.
• Remedy: 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 DCPU PJ8DCPU-3 (LOCK) R to S-28. 4 Change FM9. 5 Change DCPU. 6 Change PRCB.