• Code: 0310
• Description: LPH drive PWB communication error
  • When an error in communication with the CPU for LPH control on the LPH drive PWB is detected, transmission/ reception is not normally completed even after 10 times of retry.
• Causes: Poor contact in the connector terminals. Defective LPH drive PWB. Defective engine controller PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC31 on the engine controller PWB and the connector YC2 on the LPH drive PWB. Repair or replace if necessary.
  Defective LPH drive PWB. Replace the LPH drive PWB.
  Defective engine controller PWB. Replace the engine controller PWB.

• Code: 0420
• Description: Paper feeder communication error 1 (upper of optional paper feeder PF- 640)
  • Reception is not normally completed even after 40 times of retry at startup or 5 times of retry in normal operation.
• Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective upper of optional paper feeder PF-640.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.
  Defective upper of optional paper feeder PF-640. Replace the paper feeder with another unit and check the operation. If the operation is normal, replace or repair the upper of the optional paper feeder PF-640.

• Code: 0440
• Description: Document finisher communication problem (optional document finisher)
  • Reception is not normally completed even after 40 times of retry at startup or 5 times of retry in normal operation.
• Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective optional document finisher
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC26 on the engine controller PWB. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.
  Defective optional document finisher. Replace the document finisher with another unit and check the operation. If the operation is normal, replace or repair the optional document finisher.

• Code: 0500
• Description: Paper feeder communication error 1 (lower of optional paper feeder PF- 640)
  • Reception is not normally completed even after 40 times of retry at startup or 5 times of retry in normal operation.
• Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective lower of optional paper feeder PF-640.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.
  Defective lower of optional paper feeder PF-640. Replace the paper feeder PF-640 with another unit and check the operation. If the operation is normal, replace or repair the lower of the optional paper feeder PF-640.

• Code: 0700
• Description: Paper feeder EEPROM error 1 (upper of optional paper feeder PF-640)
  • When power is turned on, an error is detected in memory check for the upper of the optional 500 sheets paper feeder and a backup memory error is received in serial communication data
• Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective upper of optional paper feeder PF-640.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.
  Defective upper of optional paper feeder PF-640. Replace the paper feeder PF-640 with another unit and check the operation. If the operation is normal, replace or repair the upper of the optional paper feeder PF-640.

• Code: 0710
• Description: Paper feeder EEPROM error 2 (lower of optional paper feeder PF-640)
  • When power is turned on, an error is detected in memory check for the lower of the paper feeder PF-640 and a backup memory error is received in serial communication data.
• Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective lower of optional paper feeder PF-640.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.
  Defective lower of optional paper feeder PF-640. Replace the paper feeder PF-640 with another unit and check the operation. If the operation is normal, replace or repair the lower of the optional paper feeder PF-640.

• Code: 0750
• Description: Document finisher EEPROM error
  • A backup memory error is received in serial communication data from the finisher.
• Causes: Poor contact in the connector terminals. Defective engine controller PWB. Defective optional document finisher.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC27 on the engine controller PWB. Repair or replace if necessary.
  Defective engine controller PWB. Replace the engine controller PWB.
  Defective optional document finisher. Replace the document finisher with another unit and check the operation. If the operation is normal, replace or repair the document finisher.

• Code: 0926
• Description: LPH current correction EEPROM error
  • A correction data error for the second color (cyan) is detected..
• Causes: Defective EEPROM of LPH drive PWB.
• Remedy: Defective EEPROM of LPH drive PWB. Rewrite correction data.