Patent ID: 7783225
Filing Date: 2010-08-24
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a pair of stationary side walls arranged in an image forming apparatus body; and a plurality of photosensitive drum units supported between the stationary side walls, wherein each of the photosensitive drum units comprises: a drum-holding frame for holding a photosensitive drum, an exposure means-holding frame for holding an exposure means, the exposure means-holding frame being supported on the drum-holding frame so as to move in an axial direction of the photosensitive drum, relative to the drum-holding frame, and a pressing means for pressing the exposure means-holding frame from one side toward the other side in the axial direction of the photosensitive drum, wherein the pressing means comes pushed in contact with one stationary side wall, and is pushed to press-contact part of the other side of the exposure means-holding frame to the other stationary side wall, causing both sides of the exposure means-holding frame to be aligned with each other at a predetermined position in an axial direction, with the other stationary side wall as a reference.