Remedy: Defective main PWB. Replace the main PWB .
Code: 0110
Description: Backup memory data error
Remedy: Defective mDefective main PWB. Replace the main PWB .ain PWB. Replace the main PWB .
Code: 0120
Description: MAC address data error For data in which the MAC address is invalid.
Remedy: Defective main PWB. Replace the main PWB .
Code: 0150
Description: Engine PWB (EEPROM) error Data read from EEPROM is judged abnormal.
Remedy: Improper installation EEPROM. Replace the engine PWB. Defective engine PWB. Replace the engine PWB.
Code: 0170
Description: Billing counting error
Remedy: Defective main PWB. Replace the main PWB.
Code: 0420
Description: Paper feeder communication error Communication error between engine PWB and optional paper feeder.
Remedy: Improper installation paper feeder. Follow installation instruction carefully again. Defective harness between PF main PWB (YC3, YC5) and paper feeder interface connector, or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. (Refer to the service manual for the paper feeder). Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder). Defective harness between engine PWB (YC33) and paper feeder interface connector, or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. Defective engine PWB. Replace the engine PWB.