• Code: C255B
• Description: Yellow TCR Sensor adjustment failure
• Remedy: 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
• Remedy: 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.
• Remedy: 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
• Remedy: 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
• Remedy: 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
• Remedy: 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.
• Remedy: 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
• Remedy: 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.