Canon MF4412 Error Codes
Light intensity of a lamp is less or equal to the criteria
When the same error repeatedly occurs after several times of turning the power OFF/ON, execute the following remedies.
(1) Check the connection of Flat Cable between Main Controller Board (J5) and Contact Sensor.
(2) Replace the Flat Cable between Main Controller Board (J5) and Contact Sensor.
(3) Replace the Contact Sensor. (4) Replace the Main Controller Board.