| 摘要 |
PURPOSE:To obtain a color copy where colors of an original picture are reproduced by color separation by providing a filter unit which includes plural color separating filters and a filter switching means which inserts a specific color separating filter into an optical path of exposure. CONSTITUTION:When a process unit U1 which do not have a pin 8 is attached, the filter unit 7 stays at a position P1 and a filter F1 is set at the position of an exposure slit 9. When a process unit U2 which has the pin 8 is attached, the filter unit 7 is pressed with the pin to move back to a position P2 and a filter F2 moves to before the exposure slit 9. When a process unit U3 with a pin at a position 8' is attached, the filter unit 7 moves back to a position P3 and a filter F3 moves and faces the exposure slit 9. Thus, the process units which are different only in pin state are replaced to switch automatically the filters to be inserted into the optical path of exposure luminous flux. |
