Patent ID: 7606507
Filing Date: 2009-10-20
Classification: G03G

Abstract:
1. An image forming apparatus comprising: (a) an image forming section which forms a toner image on a photoreceptor; (b) a primary transfer section which transfers the toner image formed in the image forming section onto an intermediate transfer belt; (c) a back-up roller arranged on an inner periphery side of the intermediate transfer belt; (d) a secondary transfer roller that is in pressure contact with the back-up roller through the intermediate transfer belt and transfers the toner image from the intermediate transfer belt onto a transfer material while conveying the transfer material; (e) a thickness information obtaining section which obtains information relating to a thickness of the transfer material; (f) a moving mechanism which moves a position where the secondary transfer roller is in contact with the back-up roller through the intermediate transfer belt; and (g) a controller which controls the moving mechanism based on the information relating to the thickness of the transfer material obtained by the thickness information obtaining section.