Multifunction printer and stopper applied therein

A multi-function printer (MFP), comprising:

• a body, having a paper conveyor path, a paper holder and a first rotating axle, wherein the paper holder is located in front of an entrance of the paper conveyor path, and the first rotating axle is located in the paper conveyor path;
• a top cover, disposed on the body, wherein a first side of the top cover is adapted to rotate about the first rotating axle so as to be close to the paper holder of the body, and the top cover has a first stopping point;
• and
• a stopper, having a second rotating axle, a connecting portion and an eccentric portion, wherein the second rotating axle is connected to the body, the connecting portion is connected between the second rotating axle and the eccentric portion, the eccentric portion hangs down at the entrance of the paper conveyor path, a center of gravity of the stopper is located in the eccentric portion, and the first stopping point is located in a rotating path of the eccentric portion, so as to limit the rotation of the eccentric portion;
• wherein when the first side of the top cover rotates about the first rotating axle so as to be close to the paper holder, the first stopping point releases the limitation to the eccentric portion, and the eccentric portion is adapted to rotate clockwise about the second rotating axle.