Description: MFP firmware and EEPROM data inconsistent error
Causes: Inconsistency between MFP firmware version and EEPROM data version
Remedy: SIM49-1 to execute the firmware version up
Code: A0-21
Description: PCU firmware and EEPROM data inconsistent error
Causes: Inconsistency between PCU firmware version and EEPROM data version
Remedy: SIM49-1 to execute the firmware version up
Code: A0-22
Description: SCN firmware and EEPROM data inconsistent error
Causes: Inconsistency between SCN firmware version and EEPROM data version
Remedy: SIM49-1 to execute the firmware version up
Code: C1-10
Description: Main charger error
Causes: Open circuit or short circuit of the main charger output
Remedy: 1. Use SIM8-2 to check the output of [GB]. If the leakage noise or the flickering on the screen of the panel is detected; 1) Abnormality of the charger -> Remove and insert the charger or replace the charger. 2) Imperfect insetion of the charger -> Remove and insert the charger. 3) Abnormality of MHV Harness (Transformer T101 of the highvoltage PWB) -> Remove and insert MHV harness. 4) Abnormality of the developing unit -> Insert and remove the developing unit./Replace. 5) Looseness of screw (upper left of high-voltage PWB , and near the transformer T402) -> Tighten screw again. 2. Use SIM8-2 to check the output of [GB]. If the leakage noise etc. is not detected; 1) Charger not inserted. -> Insert the Charger 2) Disconnection/breakage of MHV harness (Transformer T101 of the high-voltage PWB) -> Insert the harness./Replaces. 3) High-voltage PWB trouble -> Replace the high-voltage PWB. 4) PCU PWB trouble -> Replace PCU PWB. 5) Looseness of screw (upper left of high-voltage PWB , and near the transformer T402) -> Tighten screw again.