Optical beam scanning device and image forming apparatus

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

2005-09-22

2008-08-12

Lavarias, Arnel C. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S212100, C347S242000

Reexamination Certificate

active

07411710

ABSTRACT:
An optical beam scanning device is configured from a deflecting unit that has a function to support a deflecting member and a light source, including an exposing semiconductor laser, a polygon mirror, a first fθ lens and a second fθ lens, and strictly regulate their position relative to each other; and a support member that has a function to support a mirror, a second cylindrical lens and a AD sensor along with the deflecting unit, and appropriately position them relative to a photoreceptor drum; and a housing that has a function to cover the outer portion of the deflecting unit and the support member, along with strengthening the support member.

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