• Code: C2A04
• Description: EEPROM access error (TC K)
• Remedy: 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.
• Remedy: 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.
• Remedy: 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.
• Remedy: 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.
• 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 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.
• Remedy: 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.
• Remedy: 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.
• Remedy: 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.