| 摘要 |
PROBLEM TO BE SOLVED: To shorten an intermediate transfer body and thereby, to allow designing an image forming apparatus smaller in size, in an image forming apparatus which sequentially forms toner images of a plurality of colors on a single photosensitive drum, and sequentially transfers and overlaps the images onto an intermediate transfer body by supplying a current from a secondary transfer roller.SOLUTION: The image forming apparatus having an intermediate transfer body 6 is configured to satisfy DI>M, where M represents the maximum length of a transfer material P to be output and DI represents a distance along an outer circumferential face of the intermediate transfer body from a primary transfer part T1 to a bias supply member 10 with respect to the rotation direction of the intermediate transfer body 6, to satisfy SD>M, where SD represents a distance along the outer circumferential face of the intermediate transfer body from the secondary transfer member 7 to the primary transfer part T1, and to satisfy IS>M, where IS represents a distance along the outer circumferential face of the intermediate transfer body from the bias supply member 10 to the secondary transfer member 7. The apparatus is further configured to satisfy L>3M/2, where L represents a perimeter of the intermediate transfer body 6. By applying a voltage to the secondary transfer member 7 or the bias supply member 10, a toner image on an image carrier 1 is transferred onto the intermediate transfer body 6. |
