US Patent 7865111 Image forming unit and image forming apparatus

An image forming unit includes a first image forming member; a second image forming member; a first unit for supporting the first image forming member to be freely rotatable; a second unit for supporting the second image forming member to be freely rotatable; and an image forming member urging member attached to one of the first unit and the second unit for urging the second image forming member toward the first image forming member when the first unit is connected to the second unit.