| 摘要 |
PROBLEM TO BE SOLVED: To form a full-color image of high quality at a high speed with a simple structure, by driving a photoreceptor and intermediate transfer body at the same time with a single drive source, in a device using an electrophotographic system in which full-color image is formed by switching photoreceptors in order in one image-forming position. SOLUTION: A motor 96 drives a motor gear 91. The motor gear 91 drives, via gears 93 and 94, a pulley gear 95 fixed to a drive pulley 55A, thereby turning the intermediate transfer belt 50. At the same time, the motor gear 91 drives, via the gear 92, an output-shaft drive gear 71, thereby turning the photoreceptor 30. Therefore, the photoreceptor 30 and intermediate transfer belt 50 are turned by the motor 96 serving as the single drive source. |
