To replace the motors and sensors on the back of the machine, first remove the outer cover. (Rear Cover)
No.  | Part Name  | Replacement procedure  | Remarks  | 
|---|---|---|---|
1  | Drum Cleaning Motor (KCMY)  | K, C, M, Y from the left Y is located behind the potential sensor board.  | |
2  | Development Motor (KCMY)  | K, C, M, Y from the left M and Y are located behind the potential sensor board.  | |
3  | Drum Motor (KCMY)  | K, C, M, Y from the left Y is located behind the potential sensor board.  |