• Code: C255A
• Description: Magenta TCR Sensor adjustment failure
• Remedy: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 M6, M7 operation check PWB-M CNDM2-10 to 13 (M6) PWB-M CNDM3-10 to 13 (M7) C-20 C-21. 3 Reinstall Imaging Unit. 4 Change Imaging Unit. 5 Change PWB-M. 6 Change PWB-MFP.

• 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 M6, M7 operation check PWB-M CNDM2-10 to 13 (M6) PWB-M CNDM3-10 to 13 (M7) C-20 C-21. 3 Reinstall Imaging Unit. 4 Change Imaging Unit. 5 Change PWB-M. 6 Change PWB-MFP.

• Code: C255C
• Description: Black TCR Sensor adjustment failure
• Remedy: 1 Clean or correct each contact of the Imaging Unit if faulty. 2 M7 operation check PWB-M CNDM3-10 to 13 C-21. 3 Reinstall Imaging Unit /K. 4 Change Imaging Unit /K. 5 Change PWB-M. 6 Change PWB-MFPB.

• Code: C2651
• Description: Cyan Imaging Unit EEPROM access error
  • The re-written data, which has been read out, checked and founded as error, is read out again and found as error.
  • The error was found when reading out the counter value.
• Remedy: 1 Clean the connection between the Imaging Unit and the machine if dirty 2 Reinstall Imaging Unit. 3 Change Imaging Unit. 4 Change PWB-M.

• 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. 3 Change Imaging Unit. 4 Change PWB-M.

• 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. 3 Change Imaging Unit. 4 Change PWB-M.

• 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. 3 Change Imaging Unit. 4 Change PWB-M.

• Code: C2A01
• Description: Cyan Toner Cartridge EEPROM access error
  • The re-written data, which has been read out, checked and founded as error, is read out again and found as error. • The error was found when reading out the counter value.
• Remedy: 1 Clean the connection between the Toner Cartridge and the machine if dirty 2 Reinstall Toner Cartridge. 3 Change Toner Cartridge. 4 Change PWB-MMFP.