| 摘要 |
PURPOSE:To achieve copying to forms of various size without setting size by selecting many two-sequence positions of the forward movement of an original table detected by a responding means arranged shifting in phase which responds to an energizing means united with the original table. CONSTITUTION:Through a form-size detection switch 13, a relay 33 is made to hold itself to turn on a charger 12 and when the front edge of a form reaches an exposure part, a switch 34 is changed over to make a relay 40 hold itself, thereby turning on a start clutch 36. Consequently, two-sequence positions of an original table 3 moving forward with the clutch 36 turned on are arranged shifting in phase from energizing cams 23-25, and 26-27 united with table 3 and detected according to the energized states of switches 28 and 29 responding to them. The detected positions are selected according to the on-off state of the switch to control the release of the relays 33 and 40 from the self-holding states and the turning-on operation of a back clutch 40 accompanying the release, thus determining the backward movement position of the table 3. Therefore, copying using forms of various size is performed rapidly without size setting. |
