Optical scanner and image forming apparatus using the same

Details Optical scanner and image forming apparatus using the same Optical scanner and image forming apparatus using the same

2006-12-12

2006-12-12

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S204200, C359S206100, C347S259000, C347S261000

Reexamination Certificate

active

07149021

ABSTRACT:
An optical scanner for an image forming apparatus of the present invention includes a polygonal mirror for steering a scanning beam incident thereto and an optical device located in the vicinity of the polygonal mirror. The polygonal mirror and optical device are supported by a housing. A heat radiation guide adjoins the polygonal mirror and is formed integrally with or separately from the housing. The heat radiation guide has a guide surface inclined relative to the axis of rotation of the polygonal mirror and intersecting a plane virtually formed by a scanning beam.

REFERENCES:
patent: 5343029 (1994-08-01), Katoh et al.
patent: 6172786 (2001-01-01), Fujita et al.
patent: 6195190 (2001-02-01), Tachibe et al.
patent: 6700687 (2004-03-01), Itabashi
patent: 10-168267 (1998-07-01), None

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