• Code: C0030
• Description: Fax control PWB system problem (optional fax) Processing with the fax software was disabled due to a hardware or software problem.
• Causes: Defective fax control PWB.
• Remedy: Defective fax control PWB. Replace the fax control PWB and verify the operation.

• Code: C0070
• Description: Abnormal detection of fax control PWB incompatibility (optional fax) In the initial communication with the fax control PWB, any normal communication command is not transmitted.
• 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 and verify the operation.

• Code: C0100
• Description: Main PWB backup memory device problem Writing or erasing has not completed even after a certain time.
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0110
• Description: Backup memory data problem Data in the specified area of the backup memory does not match the specified values.
• Causes: Problem with the backup memory data.
• Remedy: Problem with the backup memory data. Run maintenance item U020 to initialize the backup memory data.

• Code: C0150
• Description: Backup memory device problem (Engine PWB) An error occurs in backup data read or write for the engine PWB. An error occurs in control area deletion.
• Causes: Defective engine PWB. Data damage of EEPROM.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation. Data damage of EEPROM. Contact the Service Administrative Division.

• Code: C0160
• Description: Backup memory data problem (Engine PWB) Data for backup data check is changed at the check after startup.
• Causes: Problem with the backup memory data.
• Remedy: Problem with the backup memory data. Run maintenance item U020 to initialize the backup memory data.

• Code: C0170
• Description: Copy counts problem A checksum error is detected in the main and sub backup memories for the copy counters.
• Causes: Data damage of EEPROM.Defective main PWB.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division. Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0180
• Description: Backup memory data problem Backup data on the main PWB has broken.
• Causes: Data damage of EEPROM.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division if the problem occurs frequently.