| 摘要 |
<p>PURPOSE:To detect the transportation state of a form-sheet by reading-out the turning amount of a detection roller which is revolved in the contact with the form-sheet by use of a swing lever and a sensor. CONSTITUTION:When a form-sheet 5 is delivered onto an intermediate tray 22, said form-sheet 5 is further transported forward by the revolution of a feeding roller 31 and collided with a stopper 23. Since a detection roller 41 is rotatably installed by a stepped screw 40 which is inserted in slidable ways from the feed roller side 31 into an arcuate guide hole 39 and screwed onto a detection-roller supporting arm 37, also the detection roller 41 contacts with the form-sheet 5 and revolves as the form-sheet 5 transfers. The revolution of the detection roller 41 is transmitted to a swing lever 45 through the pin 43 of a swing arm 42, and the swing lever 45 is turned by a certain amount. The turning amount of the swing lever 45, namely the turning amount of the detection roller 41 is detected by reading-out the movement of a slit 47 by use of a sensor 48.</p> |
