| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the bending of a paper sheet and the staining of recording paper when the recording paper is fed again by providing a plurality of pairs of grasping and carrying means in a re-feeding means and sequentially moving these grasping and carrying means by a moving means. SOLUTION: Recording paper having an image formed only in one surface is carried to a re-feeding part having a plurality of grasping and carrying means 301 for forming an image in the other surface. A grasping and carrying means 301 is constructed by fixing a driving roller 401 in a plurality of core shafts 400 provided to penetrate a bearing member 405 and providing a follower roller rotatably 402 in other core shafts 400. During paper re-feeding, a driving motor is reversibly rotated and, by rotating a driving gear engaged with a rotation switching gear clockwise, the core shafts 400 are sequentially moved upward by a groove cam 409 while the plurality of core shafts 400 are rotated by gears 403... engaged therewith, and then recording paper held between roller pairs 401 and 402 is re-fed.</p> |
