Patent ID: 8807555
Filing Date: 2014-08-19
Classification: B65H

Abstract:
1. An automatic document feeder, comprising: an upper cover; a transfer channel; a pick-up arm located near an entrance of said transfer channel, and reciprocally movable between a first position and a second position; a restriction element comprising a first rotating shaft, wherein said first rotating shaft is pivotally coupled to said pick-up arm; and a document stopper comprising a second rotating shaft, wherein said second rotating shaft is pivotally coupled to said upper cover, and said second rotating shaft is not in parallel with said first rotating shaft, wherein when said pick-up arm is located at said first position, said restriction element is contacted with said document stopper, so that a swinging action of said document stopper is limited by said restriction element, wherein when said pick-up arm is located at said second position, said restriction element is separated from said document stopper, so that said document stopper is permitted to be freely swung.