Patent ID: 9046809
Filing Date: 2015-06-02
Classification: G03G

Abstract:
1. An image forming apparatus for forming an image on a recording medium, the image forming apparatus comprising: a photosensitive member; a charging unit configured to charge the photosensitive member; a developer bearing member configured to form a developer image on an image portion within a surface of the photosensitive member by supplying a developer to the image portion; and an exposure unit configured to expose the photosensitive member after the photosensitive member is charged by the charging unit, wherein the exposure unit exposes a non-image forming portion where the developer is not supplied on the surface of the photosensitive member to a non-image forming light having a lower exposure amount than an image forming light for exposing the image portion, wherein a relationship of Lvd<Lbg is satisfied where a length of a weak exposure area that the exposure unit is able to expose to the non-image forming light on the surface of the photosensitive member and that is measured in a photosensitive member longitudinal direction is Lbg, and a width of a charging area where the photosensitive member is charged by the charging unit on the surface of the photosensitive member and that is measured in the photosensitive member longitudinal direction is Lvd.