| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a load of paper feeding roller driving a paper feeding device to make a sheet contact with a paper feeding roller with pressure by a cam mechanism. SOLUTION: Left and right cam mechanisms to be set on a shaft of a paper feeding roller 8 are made unsymmetrical. That is, shapes of a cam 11A and a cam 11B are made different from each other. Additionally, shapes of a cam follower 12A and a cam follower 12B are made different from each other left and right. Consequently, timing with which the left side cam mechanism works differs from timing with which the right side cam mechanism works. Accordingly, it is possible to restrain an increase of a driving load of the paper feeding roller 8 in comparison with the case when both of the cam mechanisms simultaneously work.</p> |
