• 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.

• Code: 0870
• Description: FAX control PWB to main PWB high capacity data transfer error
  High-capacity data transfer between the FAX control PWB and the main PWB of the machine was not normally performed even if the data transfer was retried the specified times.s
• Causes: Improper installation FAX control PWB. Defective FAX control PWB or main PWB.
• Remedy: Improper installation FAX control PWB. Reinstall the FAX control PWB.
  Defective FAX control PWB or main PWB. Replace the FAX control PWB or main PWB and check for correct operation.

• Code: 0920
• Description: Fax file system error
  The backup data is not retained for file system abnormality of flash memory of the FAX control PWB.
• Causes: Defective FAX control PWB.
• Remedy: Replace the FAX control PWB and check for correct operation.

• Code: 1010
• Description: Lift motor error
  During driving the lift motor, a motor overcurrent signal is detected for 5 s. This error is detected five times successively.
• Causes: Defective bottom plate elevation mechanism in the cassette. Defective connector cable or poor contact in the connector. Defective drive transmission system of the lift motor. Defective lift motor. Defective engine PWB or connect-R PWB.
• Remedy: Defective bottom plate elevation mechanism in the cassette. Check to see if the bottom plate can move smoothly and repair it if any problem is found.
  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. Lift motor and connect-R PWB (YC8) Connect-R PWB (YC2) and engine PWB (YC502)
  Defective drive transmission system of the lift motor. Check if the gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any.
  Defective lift motor. Replace the lift motor
  Defective engine PWB or connect-R PWB. Replace the engine PWB or connect-R PWB and check for correct operation.

• Code: 2000
• Description: Main motor steady-state error
  The main motor ready input is not given for 2 s during the main motor is ON.
• Causes: Defective connector cable or poor contact in the connector. Defective drive transmission system of the main motor. Defective main motor. Defective engine PWB.
• Remedy: 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. Main motor and engine PWB (YC501)
  Defective drive transmission system of the main motor. Check if the rollers and gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any.
  Defective main motor. Replace the main motor.
  Defective engine PWB. Replace the engine PWB and check for correct operation.