• Code: E730
• Description: There is a fault in the PDL software
• Remedy: - Execute PDL resetting. - Turn off and then on the main power. - Check the connection of the SURF board. - Re-install the firmware. - Replace the main controller PCB.

• Code: E732-0001
• Description: Error in reader communication
  There is a communication error between the reader and main controller (DDI-S communication error), or between the reader and the charger unit.
• Remedy: - Check the communication between the reader unit and the main controller. - Check the power supply of the reader unit. (Check to see if initialization takes place at start-up.) - Replace the reader controller PCB, reader relay PCB, or main controller PCB. - Check the connection of the charger unit. (iR5075/5075N only.)

• Code: E732-8888
• Description: Error in reader communication
  Error in difference of scanner
• Remedy: - check the scanner model - in service mode, select: COPIER > OPTION > BODY > SCANTYPE to check

• Code: E733-0000
• Description: There is a fault in the printer communication.
  The attempt at communication with the printer fails at start-up.
• Remedy: - Check the connection of the cable between the DC controller and the main controller. - Check the power supply of the printer. (Check to see if initialization takes place at start-up.) - Replace the DC controller PCB or the main controller PCB.

• Code: E733-0001
• Description: There is a fault in the printer communication.
  There is a DDI-P communication error.
• Remedy: - Check the connection of the cable between the DC controller and the main controller. - Check the power supply of the printer. (Check to see if initialization takes place at start-up.) - Replace the DC controller PCB or the main controller PCB.

• Code: E740-0002
• Description: There is a fault in the Ethernet board.
  The MAC address is illegal.ernet board.
• Remedy: - Replace the main controller PCB.

• Code: E744
• Description: There is a fault in the language file/boot ROM.
• Remedy: - Download the language file of the correct version. - Replace the boot ROM with one of the appropriate version.

• Code: E746-0003
• Description: There is an error caused by a mismatch of the accessories board.
  At start-up, a UFR board for a different model has been detected.
• Remedy: - Replace the UFR board with one for the model in question.