Patent ID: 8554109
Filing Date: 2013-10-08
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image carrier; a rotary shaft that is inserted in the image carrier, and that rotatably supports the image carrier; a coupling member that is provided to be fitted to an end portion of the rotary shaft, and that transmits a rotational drive force to the rotary shaft; a first engaging member that projects from a circumferential surface of the rotary shaft and engages with a first groove formed in the image carrier so as to disable relative rotation of the image carrier with respect to the rotary shaft; and a second engaging member that projects from the circumferential surface of the rotary shaft and engages with a second groove formed in the coupling member, wherein the first engaging member projects in a first direction that crosses an axial direction of the shaft, the second engaging member projects in a second direction that crosses the first direction.