Description: Printer communication error
?Communication error between the Engine Controller PCB and the Main Controller PCB occurred.
Remedy: 1. Turn OFF and then ON the main power. 2. Replace the Main Controller PCB. 3. Replace the Engine Controller PCB.
Code: E743-0000
Description: Error in main controller communication
An error in reading of/writing to the Flash ROM in the Main Controller occurred.
Remedy: 1. Turn OFF and then ON the main power. 2. Replace the Main Controller PCB.
Code: E744-4000
Description: Engine ID error
Invalid engine connection was detected.
Remedy: 1. Turn OFF and then ON the main power. 2. Check if the installed Engine Controller PCB is for this model. 3. Replace the Engine Controller PCB.
Code: E744-6000
Description: Communication error with the Wireless LAN PCB
Unable to communicate with the Wireless LAN.
Remedy: 1. Turn OFF and then ON the main power. 2. Check the connection of the Wireless LAN. 3. Replace the Wireless LAN PCB. 4. Replace the Main Controller PCB.
Code: E805-0000
Description: Fan error
The Fan was locked for a specified consecutive period of time.
Remedy: 1. Check the connection of the Main Fan. 2. Replace the Main Fan.