Patent ID: 8081912
Filing Date: 2011-12-20
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: a transfer material feeding member for feeding a transfer material; a first image bearing member for carrying a first toner image; a second image bearing member, provided downstream of said first image bearing member with respect to a feeding direction of said transfer material feeding member, for carrying a second toner image; a first transfer member for transferring the first toner image carried on said first image bearing member onto a transfer material; and a second transfer member, provided downstream of said first transfer member with respect to the feeding direction, for transferring the second toner image carried on said second image bearing member onto the transfer material, wherein said apparatus is operable in a marginless print mode in which the first toner image is formed on a first region on said first image bearing member corresponding to a size of the transfer material and a second region on said first image bearing member outside said first region, and wherein a reverse-transfer efficiency TR TR where the reverse-transfer efficiency TR where the reverse-transfer efficiency TR