Patent ID: 8730291
Filing Date: 2014-05-20
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a photosensitive member; a light source comprising a plurality of light emitting elements arranged in a line extending in a main-scanning direction; and a lens array comprising a plurality of lenses that are arranged in three lines extending in the main-scanning direction such that the lenses of the neighboring lines are offset by one another, the lens array being for imaging light emitted from the light source to form an erect equi-magnified image on a surface of the photosensitive member, wherein the light source is arranged above a center of the lens array in the sub-scanning direction, viewed from a direction of optical axes of the lenses, and wherein the light source is located on a longitudinal center line of a middle line of the plurality of lenses; and wherein the photosensitive member is located such that the surface of the photosensitive member is exposed to light from a first light emitting element located at a distance of a half of a pitch of the plurality of lenses from an optical axis of a first lens of the plurality of lenses and that passes through the first lens and from a second light emitting element located at a distance of the pitch of the plurality of lenses from an optical axis of a second lens of the plurality of lenses and that passes through the second lens.