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

• Code: C0060
• Description: Main PWB type mismatch error
• Causes: Defective PWB.
• Remedy: Run maintenance item U935 to contact the Service Administrative Division.

• Code: C0070
• Description: Abnormal detection of fax control PWB incompatibility
  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: 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: C0120
• Description: MAC address data error
  For data in which the MAC address is invalid.
• Causes: Defective main PWB.
• Remedy: Replace the main PWB and check for correct operation.

• Code: C0150
• Description: Backup memory (EEPROM) 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 (EEPROM) data problem (Engine PWB)
  Reading data from EEPROM is abnormal. Read and write data does not match 5 times continuously.
• Causes: Data damage of EEPROM.
• Remedy: Contact the Service Administrative Division.

• 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.