Remedy: Improper installation engine PWB EEPROM. Check the installation of the EEPROM and remedy if necessary. Defective engine PWB. Replace the engine PWB and check for correct operation. Device damage of EEPROM. Contact the Service Administrative Division.
Code: 0170
Description: Billing counting error A checksum error is detected in the main and engine backup memories for the billing 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 the engine PWB and check for correct operation.
Code: 0180
Description: Machine number mismatch Machine number of main and engine does not match..
Causes: Data damage of EEPROM.
Remedy: Contact the Service Administrative Division.
Code: 0420
Description: Paper feeder communication error Communication error between engine PWB and optional paper feeder.
Causes: Improper installation paper feeder. Defective connector cable or poor contact in the connector. Defective engine PWB. Defective PF main PWB.
Remedy: Improper installation paper feeder. Follow installation instruction carefully again. Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Paper feeder interface and connect-L PWB (YC2) Connect-L PWB (YC6) and engine PWB (YC504) Defective engine PWB. Replace the engine PWB and check for correct operation. Defective PF main PWB. Replace the PF main PWB.
Code: 0830
Description: FAX control PWB flash program area checksum error A checksum error occurred with the program of the FAX control PWB.
Causes: Defective FAX software. Defective FAX control PWB.
Remedy: Defective FAX software. Install the fax software. Defective FAX control PWB. Replace the FAX control PWB.
Code: 0840
Description: Faults of RTC The time is judged to go back based on the comparison of the RTC time and the current time or five years or more have passed.
Causes: The battery is disconnected from the main PWB. Defective main PWB.
Remedy: The battery is disconnected from the main PWB. Check visually and remedy if necessary Defective main PWB. Replace the main PWB and check for correct operation.