Description: Communication error with Wireless LAN PCB
Causes: Communication with the Wireless LAN PCB could not be established.
Remedy: 1. Turn OFF and then ON the main power. 2. Check the harness/connector connection between the Wireless LAN PCB (UN35) and the Main Controller PCB (UN30) 3. Install the set of the controller firmware. 4. Replace the Wireless LAN PCB (UN35). 5. Replace the Main Controller PCB (UN30).
Code: E744-7000
Description: Backup microcomputer error
Causes: An error in the microcomputer which retains fax job information of the Main Controller PCB.
Remedy: 1. Update the firmware. 2. Replace the Main Controller PCB (UN30).
Code: E746-0000
Description: Main Controller PCB error (others)
Causes: A communication error of the Main Controller PCB occurred (other than scan-related communication error).
Remedy: 1. Update the firmware. 2. Replace the Main Controller PCB (UN30).
Code: E766-8000
Description: Firmware error
Causes: Information on digital registration could not be obtained.
Remedy: 1. Install the Engine Controller firmware. 2. Install the set of Controller firmware. 3. Replace the Engine Controller (UN1).
Code: E766-9000
Description: Scanner power state error
Causes: Error in power state of the Laser Scanner Unit (firmware-dependent).
Remedy: 1. Update the firmware. 2. Replace the Laser Scanner Unit.
Code: E805-0005
Description: Cartridge Fan error
Causes: The Cartridge Fan failed to rotate at the specified revolution.
Remedy: 1. Check the connection of the Cartridge Fan (FM2). 2. Replace the Cartridge Fan (FM2).