| 摘要 |
PURPOSE:To enable easy formation of a plural-color copy which is partially different in colors with good quality by using erase lamps which can optionally assign an irradiating region and a developing device which can select one color from plural colors. CONSTITUTION:The many lamps 14 are arrayed to an eraser 8 and an irradiating range is limited by a partition plate 15. The transverse direction of a photosensitive body is limited by assigning lighting of the lamps 14 and the range in the peripheral direction is limited by assigning lighting time, by which an erase region is controlled. On the other hand, plural pieces of developing units for different colors are interchangeably provided for the developing device. The part of the original except the region corresponding to the part 3a is destaticized by controlling the eraser 8 and development of, for example, a red color is executed after exposing in the above-mentioned constitution. The part 3 is only irradiated, and the part 3b for example, is subjected to black color development by the black unit. The two-color copy is thus formed with the simple operation without the need for forming two sheets of the originals having different colors and without positional deviation of the original. |
