Patent ID: 7925179

Claim:
An image forming apparatus comprising: a photosensitive member in which an electrostatic latent image is formed on the surface thereof; and an exposure member having a light emitting element, the exposure member exposing the photosensitive member at an exposure position opposed to an opposed position on the photosensitive member to form the electrostatic latent image, the exposure member being movable between the exposure position and a retreated position retreating from the exposure position, wherein the exposure member includes a dust-proof wall protruding more than a light-emitting surface of the exposure member, and a positioning member positioning the exposure member with respect to the photosensitive member at the exposure position, wherein the dust-proof wall and the positioning member are integrally formed, and wherein the dust-proof wall is separate from the photosensitive member when the exposure member is disposed at the exposure position.