| 摘要 |
PROBLEM TO BE SOLVED: To provide a color image recorder hardly damaging the surface of a photoreceptor and having an excellent maintainability. SOLUTION: An image formation unit group 14 is constituted by attachably/ detachably combining and arranging plural image formation units 13 (13C, 13M, 13Y and 13BK) having a developer hopper 23 and the photoreceptor 19 nearly annularly and adjacently to each other. The image formation unit group 14 has a cylindrical space having an optical path changing means at a center part, and is divided into plural individual unit housing spaces having a nearly sector-shaped cross section, and houses the image formation unit 13 in them. The position of an intermediate transfer belt 3 is controlled so that it is not brought into contact with the photoreceptor 19 by moving a first transfer roller 4 at the standstill time of the recorder and it is brought into contact with the photoreceptor 19 by moving the first transfer roller 4 at the time of forming an image. The intermediate transfer belt 3 is positioned at a withdrawal position at the time of the rotating operation of the image formation unit group 14, so that the photoreceptor 19 and the intermediate transfer belt 3 are not brought into contact with each other. |
