Description: Backup memory (EEPROM) data problem (Engine PWB) Reading data from EEPROM is abnormal. Read and write data does not match 5 times continuously.
Causes: Data damage of EEPROM.
Remedy: Data damage of EEPROM. Contact the Service Administrative Division.
Code: C0170
Description: Copy counts problem A checksum error is detected in the main and engine backup memories for the copy counters.
Causes: Data damage of EEPROM. Defective PWB.
Remedy: Data damage of EEPROM. Contact the Service Administrative Division. Defective PWB. Replace the main PWB or engine PWB and check for correct operation.
Code: C0180
Description: Machine number mismatch error Machine number of main PWB and engine PWB does not match.
Causes: Data damage of EEPROM.
Remedy: Data damage of EEPROM. Contact the Service Administrative Division.
Code: C0320
Description: Power CPU communication problem The engine PWB and the power CPU are unable to communicate with each other.
Causes: Defective engine PWB.
Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.
Code: C0420
Description: Optional paper feeder communication problem The engine PWB and the paper feeder are unable to communicate with each other.
Causes: Poor contact in the connector terminals. Defective PWB.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC22 on the engine PWB and the connector on the paper feeder main PWB, and the continuity across the connector terminals. Repair or replace if necessary Defective PWB. Replace the engine PWB or paper feeder main PWB and check for correct operation.
Code: C0620
Description: FAX image DIMM problem DIMM is not installed correctly. DIMM cannot be accessed.
Causes: DIMM installed incorrectly. Defective main PWB.
Remedy: DIMM installed incorrectly. Check if the DIMM is inserted into the socket on the main PWB correctly. Defective main PWB. Replace the main PWB and check for correct operation.