| 摘要 |
<p>PURPOSE: To surely inverting paper sheets of any sizes upside down at high speed by moving a paper stopper and detecting the position thereof, and controlling the movement thereof according to the detection results. CONSTITUTION: A motor drive control part 19 detects the present position of a from an output signal of a stopper position detection part 18. When a stopper 8 is positioned at a position different from that of a predetermined paper size, a motor 12 is rotated to the predetermined direction. Then, the stopper 8 is moved upwards through a pinion 13 and a rack 11. As a result, in the case where a light is interrupted when a light interrupting piece of the stopper 8 comes in a sensor of sensing the predetermined stop position of the stopper 8, the detection part 18 detects it to output a signal to the control part 19. The contorl part 19 detects in this way that the stopper 8 is moved to the predetermined paper size position and stops the motor 12.</p> |
