Code :

Code: EC00
Description: Detected a main fan failure.
Causes: 1 Connection failure of the main fan harness. 2 Connection failure of the toner LED PCB harness. 3 Main fan failure. 4 Toner LED PCB failure. 5 Main PCB failure.
Remedy: 1 Connection failure of the main fan harness Check the connection of the main fan harness, and reconnect it if necessary. 2 Connection failure of the toner LED PCB harness Check the connection of the toner LED PCB harness, and reconnect it if necessary. 3 Main fan failure Replace the main fan. 4 Toner LED PCB failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the toner LED PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

Code: ED00
Description: Communication between the wireless LAN PCB and the main PCB cannot be established at machine startup.
Causes: 1 Connection failure of the wireless LAN PCB harness. 2 Wireless LAN PCB failure. 3 Main PCB failure.
Remedy: 1 Connection failure of the wireless LAN PCB harness Check the connection of the wireless LAN PCB harness, and reconnect it if necessary. 2 Wireless LAN PCB failure Replace the wireless LAN PCB. 3 Main PCB failure Replace the main PCB ASSY.

Code: EE00
Description: Detected communication failure after communication between the wireless LAN PCB and the main PCB was established.
Causes: 1 Wireless LAN PCB failure. 2 Main PCB failure.
Remedy: 1 Wireless LAN PCB failure Replace the wireless LAN PCB. 2 Main PCB failure Replace the main PCB ASSY.

Code: EF00
Description: Unstable power supply was detected.
Causes: 1 Low-voltage power supply PCB failure. 2 Main PCB failure.
Remedy: 1 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY, and then reset the irregular power supply detection counter. 2 Main PCB failure Replace the main PCB ASSY.

Code: F900
Description: The country code was not entered correctly.
Causes: 1 Power switch was turned OFF while PARAMETER INIT is displayed during execution of function code 74.
Remedy: 1 Power switch was turned OFF while "PARAMETER INIT" is displayed during execution of function code 74. Reenter the country code. " in Chapter 5.)