Image forming apparatus having image transfer member

摘要

An image forming apparatus having an image bearing member and an image transfer charger for transferring a toner image from the image bearing member onto a transfer material. The transfer charger has a transfer member contactable to the backside of the transfer material. The transfer member includes a conductive base, and a surface layer outside the eleastic layer. The transfer member's characteristics fall within the parameters of: 5x107/=10 where r1 is a volume resistivity of the elastic layer, d1 is a thickness of the elastic layer, R2 is a volume resistivity of the surface layer, and d2 is a thickness of the surface layer.