• Code: C5351
• Description: Fusing cooling fan motor malfunction
  - The fan lock signal remains HIGH for a predetermined continuous period of time while the fusing cooling fan motor (FM1) is turning.
• Remedy: 1 Check the connector between FM1-relay CN42-relay CN13-MFPB P013 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check. 4 Change MFPB.

• Code: C6101
• Description: Scanner home detection failure
  - When the power switch is turned ON or a scan operation is completed, detecting the home position fails.
• Remedy: 1 Turn OFF and ON the power switch. 2 Check the connector between M3-MFPB P101 for proper connection and correct as necessary. 3 Check M3 for correct drive coupling and correct as necessary. 4 Check the connector between CIS-MFPB P102 for proper connection and correct as necessary. 5 M3 operation check. 6 Change M3. 7 Change CIS. 8 Change MFPB.

• Code: C9401
• Description: IR exposure lamp malfunction
  - When the power switch is turned ON or a scan operation is completed, the light quantity is checked and the shading compensation is performed. At this time, trouble is detected.
• Remedy: 1 Turn OFF and ON the power switch. 2 Check the connector between CIS-MFPB P102 for proper connection and correct as necessary. 3 Change CIS 4 Change MFPB.

• Code: CC151
• Description: Flash ROM error
  - The copier determines that there is an error if writing to the flash ROM fails during upgrading of the firmware.
  - When the power switch is turned ON, the error indicator lights up steadily and a corresponding message appears on the display.
  - If this error message appears, no operations can then be performed. It is not possible to upgrade the firmware from a PC connected through USB connection, either.
• Remedy: 1 Check the MFPB connectors for proper connection and correct as necessary. 2 Identify the specific firmware that is responsible for the error. 3 Perform upgrading of the firmware. 4 Change MFPB.

• Code: CC153
• Description: Engine flash ROM error
  - Data of flash ROM of the engine control system is determined to be faulty.
• Remedy: 1 Check the MFPB connectors for proper connection and correct as necessary. 2 Identify the specific firmware that is responsible for the error. 3 Perform upgrading of the firmware. 4 Change MFPB.

• Code: CC163
• Description: Engine connection failure
  - The controller can not communicate with the engine control system.
  - Incorrect engine firmware is installed.
• Remedy: 1 Turn OFF and ON the power switch. 2 Check whether the correct engine firmware is installed. If not, rewrite the firmware. J.1. Rewriting of firmware 3 Check the MFPB connectors for proper connection and correct as necessary. 4 Change MFPB.

• Code: CD301
• Description: EEPROM error
  - Contact the responsible people of KMBT before taking some countermeasures.
• Remedy: