• Code: 590
• Description: Fan motor error
  The machine does not lock for 3sec during rotating the fusing fan motor.
• Causes: Fan motor disconnected, defective. Fan motor harness loose, broken, defectiven

• Code: 591
• Description: PSU fan error
  The machine does not lock for 3sec during rotating the PSU fan motor.
• Causes: Defective PSU fan

• Code: 620
• Description: GAVD communication error
  The machine detects an error data of the ASIC.
• Causes: Defective engine board. Defective ASIC

• Code: 622
• Description: Paper tray unit communication error
  Three consecutive errors occur during polling, after the paper tray unit is successful I2C communication.
• Causes: Disconnect harnessesunic

• Code: 669
• Description: EEPROM Error
  The EEPROM was not connected at power on, or read/write operations on the EEPROM failed.
• Causes: EEPROM connected improperly. EEPROM missing

• Code: 670
• Description: Engine startup error
  The BCU failed to respond within the prescribed time when the machine is turn on.
• Causes: Connections between BCU and controller board are loose, disconnected, or damaged Replace the BCU. Replace the controller board.

• Code: 672
• Description: Controller startup error
  After power on, the line between the controller and the operation panel did not open for normal operation. After normal startup, communication with the controller stopped.
• Causes: Controller stalled. Controller installed incorrectly. Controller board defective. Operation panel harness. disconnected or defective

• Code: 687
• Description: PER-command error
  The machine does not receive PAPI-PER command for specific time, after PAPI-PES was issued.
• Causes: Defective controller