• 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: C0060
• Description: Main PWB type mismatch error
• Causes: Defective PWB.
• Remedy: Defective PWB. Contact the Service Administrative Division.

• Code: C0070
• Description: Fax control PWB incompatibility detection problem (optional fax) Fax software is not compatible with main software
• Causes: FAX and the machine are not compatible.
• Remedy: FAX and the machine are not compatible. Use the FAX control PWB that is designed for use with the machine.

• Code: C0130
• Description: Backup memory (EEPROM) device problem (Main PWB) Reading from or writing to EEPROM cannot be performed.
• Causes: Defective main PWB. Device damage of EEPROM.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation. Device damage of EEPROM. Contact the Service Administrative Division.

• Code: C0140
• Description: Backup memory (EEPROM) data problem (Main PWB) Reading data from EEPROM is abnormal.
• Causes: Data damage of EEPROM.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division.

• Code: C0150
• Description: Backup memory device problem (Engine PWB) Reading from or writing to EEPROM cannot be performed.
• Causes: Defective engine PWB. Device damage of EEPROM.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation. Device damage of EEPROM. Contact the Service Administrative Division.

• Code: C0160
• Description: Backup memory data problem (Engine PWB) Reading data from EEPROM is abnormal. Read and write data does not match five times continuously.
• Causes: Problem with the backup memory data. Defective engine PWB.
• Remedy: Problem with the backup memory data. Run maintenance item U022 to initialize the backup memory data. Defective engine PWB. If the C0160 is displayed after initializing the backup memory, replace the engine PWB and check for correct operation.

• Code: C0170
• Description: Copy counts problem A checksum error is detected in the main and engine backup memories for the copy 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 engine PWB and check for correct operation.