Patent ID: 6557848
Filing Date: 2003-05-06
Classification: B65H

Abstract:
A paper-stopping mechanism applied in an automatic document feeder (ADF), comprising:a shaft; a stepping motor for causing said shaft to rotate; a cam structure having a first protruding portion and a second protruding portion and carried by said shaft to rotate said first protruding portion and said second protruding portion thereof; a paper-stopping arm having a bearing point, wherein said bearing point is moved against said first protruding portion to move said paper-stopping arm upward; and an elastic buckling device for buckling said paper-stopping arm when said paper-stopping arm is moving upward to stay at a paper-feeding position, and for shifting when said second protruding portion of said cam structure is rotated against said elastic buckling device for removing said paper-stopping arm from said elastic buckling device and return to a paper-stopping position.