Causes: At a time other than power-on, an error has occurred in the communication between engine controller and video controller (caused by the engine controller).
Remedy: - Turn off and then back on the power. - Replace the engine controller board.
Code: E733-0004
Description: Printer-related communication error
Causes: Undefined command error
Remedy: - Turn off and then back on the power. - Replace the engine controller board.
Code: E744-1000
Description: Illegal ID code during controller firmware download
Causes: It is detected that the USB product ID sent at downloading of the controller firmware and the product ID of bootrom written in ROM do not match.
Remedy: - Replace the scanner fan. - Replace the video controller PCB.
Code: E805-0000
Description: Fan error
Causes: Fixing fan error Cause The fixing fan is faulty. The engine controller PCB is faulty.
Remedy: - Replace the fixing fan. - Replace the engine controller PCB.
Code: E805-0001
Description: Fan error
Causes: Scanner fan error Cause The scanner fan is faulty. The engine controller PCB is faulty.
Remedy: - Replace the scanner fan. - Replace the engine controller PCB.