Take off the plastic panel in front of you first, and then you can take it off by pressing it left and right. Then you unscrew the left and right screws, and then remove the two screws that fix the motor. Then you unload the motor and find two gears. Then you remove the E-buckle, and then the green hook on the left and the left and right plugs are removed. You can take out the roller shaft, take down the paper, clean it with alcohol and put it back.