• Code: 0180
• Description: Machine number mismatch
  Machine number of main and engine does not match.
• Causes: Data in the EEPROM .
• Remedy: Contact the Service Administrative Division.

• Code: 0600
• Description: Expanded memory (DIMM) installing error
  The expansion memory modules (DIMM) are not correctly mounted.
• Causes: Improper installation expanded memory (DIMM).
• Remedy: Improper installation expanded memory (DIMM). Check the installation of the expanded memory (DIMM).

• Code: 0610
• Description: Expanded memory (DIMM) error
  The expansion memory modules (DIMM) mounted on the main PWB does not operate correctly.
• Causes: Defective expanded memory (DIMM). Defective main PWB.
• Remedy: Defective expanded memory (DIMM). Replace the expanded memory (DIMM) and check for correct operation.
  Defective main PWB. Replace the main PWB and check for correct operation.

• 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.

• 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: 0930
• Description: EEPROM bus error
• Causes: Defective drum PWB (EEPROM). Defective engine PWB (EEPROM). Defective engine PWB. Defective main PWB.
• Remedy: Defective drum PWB (EEPROM). Replace the drum unit.
  Defective engine PWB (EEPROM). Replace the engine PWB and check for correct operation.
  Defective engine PWB. Replace the engine PWB and check for correct operation.
  Defective main PWB. Replace the main PWB and check for correct operation.