Optical scanning device and image forming apparatus

Details Optical scanning device and image forming apparatus Optical scanning device and image forming apparatus

2007-03-20

2007-03-20

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

10934439

ABSTRACT:
An optical scanning device includes a light source, a pre-deflection optical device for applying a predetermined characteristic to a light beam irradiated from the light source, a light deflection device for deflecting the light beam having a predetermined characteristic supplied from the pre-deflection optical device in a main scanning direction by reflection, and a post-deflection optical device having an image forming lens for focusing the deflected light beam irradiated from the light deflection device on an image forming surface. Further, the optical scanning device includes a light deflection device adjusting mechanism configured to enable adjustment of an inclination quantity of the light deflection device, a pre-deflection optical device adjusting mechanism, having the light source and the pre-deflection optical device attached thereon, configured to simultaneously enable adjustment of an overall position and attitude of the light source and the pre-deflection optical device, and a post-deflection optical device adjusting mechanism configured to change a position and/or angle in a sub scanning direction of the light beam emitted from the image forming lens.

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U.S. Appl. No. 10/820,750, filed Apr. 9, 2004, Kuribayashi.

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