| 摘要 |
PURPOSE:To position the image of an original surface on normal paper correctly and copies the image by providing a synchronizing signal generating means, a conveyance control means, and an optical origin detection sensor, and outputting a synchronizing signal at specific intervals of time from a signal the optical origin detection sensor. CONSTITUTION:When the original 16 begins to move as shown by an arrow 19, the optical origin detection sensor 30 outputs an origin detection signal 31, which is inputted to a synchronizing signal generating circuit 32. Specific time interval data is set in the circuit 32, which outputs the synchronizing signal 33 at set intervals of time, so a normal paper conveyance control solenoid 21 which impedes the movement of the normal paper 17 shown by an arrow 23 is driven to allow the normal paper 17 to move as shown by the arrow 23. Further, the image of the original surface 18 is copied in the same relative position relation with the normal paper by presetting the time interval data so that the front end of a visual image of the original surface 18 formed on a photosensitive body 10 rotating as shown by an arrow 11 is aligned with the front end of the normal paper 17 moving as shown by the arrow 23. |
