Description: Program error. (An error occurred in the ROM checksum.)
Causes:
Remedy: 1 Firmware update failure Upload the latest firmware. 2 Main PCB failure Replace the main PCB ASSY.
Code: E2
Description: When the center thermistor is lower than the idle temperature, it is detected that the side thermistor temperature is higher than 280°C.
Causes:
Remedy: 1 Heat roller dirty Clean the heat roller. 2 Harness connection failure between paper eject sensor PCB ASSY and fuser unit Check the harness connection between the paper eject sensor PCB ASSY and fuser unit, and reconnect it. 3 Side thermistor or center thermistor failure Replace the fuser unit. 4 Paper eject sensor PCB failure Replace the paper eject sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.
Code: E6
Description: Write error in EEPROM of the main PCB.
Causes: 1 Main PCB failure
Remedy: Replace the main PCB ASSY.
Code: EC
Description: Main fan error.
Causes:
Remedy: 1 Harness connection failure of main fan Check the harness connection of the main fan and reconnect it. 2 Main fan failure Replace the main fan. 3 High voltage power supply PCB failure Replace the high voltage power supply PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.
Code: ED
Description: Communication with the wireless LAN PCB cannot be established upon startup of the power supply.
Causes:
Remedy: 1 Harness connection failure of wireless LAN PCB Check the harness connection of the wireless LAN PCB and reconnect it. 2 Wireless LAN PCB failure Replace the wireless LAN PCB. 3 High voltage power supply PCB failure Replace the high voltage power supply PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.
Code: EE
Description: Unavailability of communication after connecting to the wireless LAN PCB is detected.
Causes:
Remedy: 1 Harness connection failure of wireless LAN PCB Check the harness connection of the wireless LAN PCB and reconnect it. 2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY. 3 High voltage power supply PCB failure Replace the high voltage power supply PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.