Patent ID: 7221894
Filing Date: 2007-05-22
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a first image bearing member; first toner image forming means which forms a first toner image on the first image bearing member; an intermediate transfer member in which a circumferential face is formed and rotates in a predetermined direction by using the center of the circumferential face as a rotating center, and the thickness is periodically changed in a predetermined interval in the predetermined rotating direction; a first primary transfer region in which the first toner image on the first image bearing member is transferred to the intermediate transfer member; a second image bearing member; second toner image forming means which forms a second toner image on the second image bearing member; and a second primary transfer region in which the toner image on the second image bearing member is transferred to the intermediate transfer member to which the first toner image is transferred, wherein the distance between the central position of the first primary transfer region in the rotating direction of the intermediate transfer member and the central position of the second primary transfer region is approximately integer multiples of the predetermined interval.