| 摘要 |
<p>PURPOSE:To simplify constitution and cut cost and permit the certain drive by screwing a connection part with a shaft and transferring the connection part by the normal and reverse revolution of the shaft and moving a receiving board in reciprocation, thus avoiding the need of a clutch mechanism. CONSTITUTION:When a prescribed number of sheets of paper after copying are collected into a paper discharge tray, an operation instruction is provided for the driving motor 55 of a jogger, and the jogger is normally revolution- driven, and a spiral shaft 58 is revolved normally, and a transfer element 59 is shifted by a prescribed quantity in the direction of arrow (a), and the paper discharge tray is stopped after the detection of the tongue piece by the second detector 75b. When a prescribed number of paper sheets after image formation are collected, the spiral shaft 58 is revolved reversely, and the transfer element 59 is shifted by a prescribed distance in the direction of arrow (b), and the paper discharge tray is stroped by the detection by the first detector 75a. Since the paper discharge tray is moved in reciprocation by the normal and reverse revolution of the spiral shaft 58a, the need of clutch mechanism etc. can be avoided, and the simple constitution is permitted, and cost can be cut, and certain drive is secured.</p> |
