| 摘要 |
PROBLEM TO BE SOLVED: To prevent disturbance of a toner image on an intermediate transfer body and the occurrence of transfer failure during transfer, by keeping a portion of an intermediate transfer body, which is situated in a roller-member contact position when the intermediate transfer body is stopped, in an image-carrier contact position by the time until printing is ready. SOLUTION: When stopped, an intermediate transfer belt 14a as an intermediate transfer body is stretched between a drive roller 14d, a ground roller 14j, a follower roller 14e, a guide roller 14f, and a tension roller 14i, all of which are roller members, and is kept in contact with a photoreceptor drum 10 being an image carrier. Therefore, habitual curvature in the intermediate transfer belt 14a occurs in a roller-member contact position P2 where it contacts the drive roller 14d being the roller member. In order to eliminate the habitual curvature, a portion of the intermediate transfer body situated in the roller- member contact position P2 where it contacts the drive roller 14d when stopped is turned and moved to an image-carrier contact position P1 where it contacts the photoreceptor drum 10. By the time printing is ready, that is, printing becomes possible, the portion is kept in the image-carrier contact position P1 where it contacts the photoreceptor drum 10. |
