IMAGE FORMING DEVICE AND PROCESS CARTRIDGE

PROBLEM TO BE SOLVED: To provide an image forming device and a process cartridge capable of reducing the load applied on an image forming body when drive is transmitted from one end side to the other end side of the image forming body.SOLUTION: A photosensitive drum 11 includes: a cylindrical drum body 91; a drive transmission shaft 92 inserted into the drum body 91; flange parts 93, 94 located between the drum body 91 and the drive transmission shaft 92; and a coupling 96 into which rotational driving force of a drive motor is inputted. The drive transmission shaft 92 has plane parts 92a, 92b as whirl-stops at each end part. The plane part 92a engages with the coupling 96, and the plane part 92b engages with the flange part 93. The flange part 93 has a gear to transmit rotational driving force to a developing unit and a toner recovery unit. The rotational driving force inputted into the coupling 96 of the photosensitive drum 11 is transmitted to the flange part 93 without via the drum body 91.