| 摘要 |
PURPOSE:To obtain the proper quantity of light according to the kind of a color original by providing a gradation reproduction correcting means for the selective interposition of color filters and a filter detecting means on an exposure optical path, and adjusting the quantity of light of a light source. CONSTITUTION:The gradation reproduction correcting means 20 has a support member 21 which opens and closes a slit 10a with a color filter 19 and a lever 25 which is coupled operatively by a pin and a long-sized groove 23. The lever 25 is rotated by a solenoid 27. When a color original is copied, a selection key 29 corresponding to its kind is pressed to operate the solenoid 27 through a driving circuit 28, and a corresponding filter 19 is moved selectively to an interposition. Then, a detector 30 detects the interposition of the filter and the quantity of light of the light source 5 is adjusted to the proper quantity of light corresponding to the filter 19 which is discriminated through a computer 31 and a lamp regulator 32. |
