• Code: 0160
• Description: Backup memory data error (engine PWB)
• Causes: Defective flash memory.
  Defective engine PWB.
• Remedy: Replace the engine PWB and check for correct operation.

• 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: Data damage of EEPROM. Contact the Service Administrative Division.

• Code: 0320
• Description: I/O CPU communication error
  A communication error is detected 10 times in succession.
• Causes: Defective PWB.
• Remedy: Defective PWB. Replace the main PWB or the engine PWB and check for correct operation.(see page 1- 5-33,1-5-34)

• Code: 0800
• Description: Image processing error
  JAM05 is detected twice.
• Causes: Defective main PWB.
• Remedy: Replace the main PWB and check for correct operation(see page 1-5-33).

• 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.
• 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.