• Code: E730-0
• Description: Inside error of the Main Controller Board (PDL system error)
  - The inside of the Main Controller Board is faulty.
• Remedy: - Replace the Main Controller Board.

• Code: E733-0
• Description: Erroneous communication between controller and printer
  Cannot communicate with the printer at startup.
• Remedy: - Check the connectors of the Engine controller PCB and Main Controller Board for normal connection. - Check the power supply of the printer (Check whether initialization is performed at startup). - Replace the Engine controller PCB or Main Controller Board.

• Code: E736-0
• Description: CCU communication error
  - The installed modem PCB is incompatible.
• Remedy: - Check the connectors of the Main Controller Board and modem. - Replace the modem PCB. - Replace the Main Controller Board.

• Code: E739-0
• Description: Erroneous communication between controller and network board
  - The installed network board is incompatible
• Remedy: - Replace the Main Controller Board.

• Code: E805-0
• Description: Fan failure
  - The fan is faulty.
• Remedy: - Check the fan connector. - Replace the fan. - Replace the Engine controller PCB.

• Code: E808-0
• Description: Fixing drive circuit failure
  - The heater does not turn on.
  - A fixing drive motor failure was detected
• Remedy: - Check the connector of the fixing film unit. - Replace the fixing film unit. - Replace the fixing drive motor. - Replace the Engine controller PCB. - Replace the power supply PCB.