Remedy: Extract and insert eMMC PWB (If it does not improve, the part must be returned to the original part and then another part replaced.) Replace eMMC PWB Replace MFPC PWB Replace both eMMC PWB and MFPC PWB.
Code: A0-20
Description: Conflict firmware and EEPROM data version (MFP)
Causes: Inconsistency between the MFP firmware version and the EEPROM data version.
Remedy: Check the combination of the firmware.
Code: A0-21
Description: Conflict firmware and EEPROM data version (PCU)
Causes: Inconsistency between the PCU firmware version and the EEPROM data version.
Remedy: Check the combination of the firmware.
Code: A0-22
Description: Conflict firmware and EEPROM data version (SCU)
Causes: Inconsistency between the SCU firmware version and the EEPROM data version.
Remedy: Check the combination of the firmware.
Code: C1-01
Description: Charger cleaner trouble
Causes: The main charger unit (K) is not installed properly. There is an abnormality in the main charger unit (K). Connector connection trouble of the drum unit (K) HP sensor. Harness disconnection of the drum unit (K) HP sensor. HP sensor dirt. Charger cleaner motor (K) trouble. PCU PWB connector connection trouble/PWB trouble.
Remedy: Use SIM6-4 to check the operation of the charger cleaner. Check disconnection of the main charger unit./ Replace. Check for disconnection of the connector of the drum unit (K) HP sensor. Check the harness of the drum unit (K) HP sensor. Clean the HP sensor. Check disconnection of the PCU PWB connector./ Replace PWB. Replace the charger cleaner motor (K).
Code: C1-10
Description: Main charger trouble When the main charger out put is delivered, an abnormal out put has occurred.
Causes: The main charger unit (K) is not installed properly. There is an abnormality in the main charger unit (K). High voltage MC PWB trouble.
Remedy: Check the output of the main charger with SIM8-2. Check the output of the developing bias with SIM8-1. Check disconnection of the main charger./Replace. Check disconnection of the high voltage MC PWB connector./Replace.