| 摘要 |
PURPOSE:To copy a designated part by a color being different from other part, by identifying a color change range, operating selectively a developing device, based on this information, and erasing selectively an image on a photosensitive drum by an erasing array. CONSTITUTION:A part for changing a color of an original image is surrounded by a special coloring material, and an image of the part which is surrounded by the coloring material is copied by a color being different from an image of other part. Also, the coloring material has a spectral characteristic by which it reacts to a CCD 174 and does not react to a photosensitive drum. For instance, in case of copying a Ga part of an original G consisting of black by other color, this Ga part is surrounded by blue Gb as shown by an oblique line by using a special pen. When a copying key is operated after having operated a surrounded part color change designating key, an erasing data is supplied to an array driving part 160 from a memory 140, and in accordance with this erasing data, an erasing array 150 is operated, and charge of the part surrounded by the blue Gb part is erased from on the photosensitive drum. |
