Optical scanning apparatus and image forming apparatus

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

2006-10-17

2006-10-17

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

By moving a reflective element

Reexamination Certificate

active

07123396

ABSTRACT:
A first distance is longer than a second distance. This sets a movable plate653apart from the horizontal side portions (first adjacent portions)652ain the direction Y of a pivot axis, which reduces air resistance against the movable plate653and hence the amount of heat generation. A light beam from a first optical system impinges upon a deflection mirror surface651from the front side of the deflection mirror surface651and along the direction Y of the pivot axis at an acute angle with respect to the surface normal to the deflection mirror surface651. Hence, the light beam L travels in the space other than the space surrounding the deflection mirror surface651, namely, the space in the vicinity of a central section of the deflection mirror surface. This realizes scanning with the light beam without thermal influence.

REFERENCES:
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patent: 2002/0163704 (2002-11-01), Hayashi et al.
patent: 2003/0227538 (2003-12-01), Fujii et al.
patent: 63-279220 (1988-11-01), None
patent: 2003-222817 (2003-08-01), None
patent: 2003-315724 (2003-11-01), None

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