Patent ID: 7808516
Filing Date: 2010-10-05
Classification: B41J,G03G,H04N

Abstract:
1. An image forming apparatus comprising: a photosensitive member having a movable surface, the photosensitive member including a photosensitive layer and an exposure apparatus which exposes the photosensitive layer to form an electrostatic latent image and includes light emitting portions arranged in a grid pattern, the photosensitive layer and the exposure apparatus being movable in union with the photosensitive member; the exposure apparatus forming the electrostatic latent image by setting an exposure time to be long for an area forming a high-density image portion and short for an area forming a low-density image portion, a charging apparatus arranged to charge a surface of the photosensitive member; a developing apparatus arranged to supply a developer to the electrostatic latent image in a development region, thereby developing the electrostatic latent image to a developer image; and a control unit configured to control the exposure apparatus such that, when a latent image is formed to obtain a developer image containing the high-density image portion and the low-density image portion, a position on the surface of the photosensitive member, at which exposure for the area forming the high-density image portion is completed, is located within the development region and downstream of a position on the surface of the photosensitive member, at which exposure for the area forming the low-density image portion is completed, in a moving direction of the surface of the photosensitive member.