1 Cause : The loop sensor lever is not set correctly
solution : Check the loop sensor lever and place it in the correct position.
2 Cause: The spring of the fuser delivery media feed sensor lever is unhooked.
Solution: Check the spring of the fuser and right door sensor levers and place it in the correct position
3 Cause: The fuser delivery media feed sensor lever damaged.
Solution: Replaced the fuser or right door.
4 Cause: Poor contact of the fuser delivery media feed sensor connector.
Solution: Reconnect the connector of the fuser delivery media feed sensor(J1945), Intermediate ( J1950, J1919 ) and the dc controller PCA ( J108)
5 Cause: The fuser delivery media feed sensor is defective.
Solution: Check the fuser delivery media feed sensor by the sensor monitor mode. If the sensor is defective, replace the right door.
6 Cause: Poor contact of the fuser motor connector
Solution: Reconnect the connectors of the fuser motor ( J1711 ), intermediate ( 1720) and the dc controller PCA (105 ).
7 Cause: The fuser motor is defective.
Solution: Execute the fuser motor driving test in the actuator drive mode. If the motor defective, replace the fuser motor.