Canon MF4018

An error code is used to indicate a fault in a machine, and is indicated in the machine's LCD, showing the nature (symptoms) of the fault. Using the error code, the service man can readily find out how to correct the fault by simply referring to the service manual. An error code may be either of the following two types:

Service Error Codes

If a fault calls for a service man for correction, it is indicated as a service man error code in the form of "SYSTEM ERROR E+number."

System error code

Error code	Major cause/detection	Remedy
E198	Flash ROM write error.	Turn the power OFF and then back ON.. Replace the SCNT board.
E674	Modem error.	Turn the power OFF and then back ON.. Replace the SCNT board.

Scanner error code

Error code	Major cause/detection	Remedy
E225	CIS lamp has a fault.	Turn the power OFF and then back ON.. Replase the CIS unit.

Printer error code

Error code	Major cause/detection	Remedy
E000	The thermistor has an open circuit or a short circuit.	Check the connector of the fixing film unit. Replace the fixing film unit. Replace the High-voltage power supply board. Replace the DCNT board.
	The heater has an open circuit. The thermal fuse has blown.
	The High-voltage power supply board has a fault.
	The DCNT board has a fault.
E100	The scanner assembly has a fault.	Check the connector of the laser scanner assembly. Replace the laser scanner assembly. Replace the HVT unit. Replace the DCNT board.