Patent ID: 7518771
Filing Date: 2009-04-14
Classification: B41J,G02B,G03G

Abstract:
1. An optical scanning device, comprising: plural light sources that emit light beams corresponding to images using developing agents each having different brightness; a deflector that deflects plural light beams emitted from the plural light sources as the plural light beams go incident on a same reflection surface thereof at different angles of incidence in a sub-scanning direction; plural correction members that correct curve errors occurring in scanning lines of the plural light beams deflected by the deflector; and plural last reflection members that reflect the light beams corrected by the plural correction members to be distributed to surfaces of different photoconductors, the last reflection members being disposed sequentially along a horizontal direction, wherein, of the plural last reflection members, a last reflection member provided in an optical path of a light beam corresponding to an image using a developing agent having lowest brightness is provided so that an angle of installation of a reflection surface of the last reflection member is closer to vertical than any of the other last reflection members, and of the plural last reflection members, a last reflection member provided in an optical path of a light beam corresponding to an image using a developing agent having highest brightness is provided so that an angle of installation of a reflection surface thereof is closer to horizontal than any of the other last reflection members.