Image-forming device and scanning unit for use therein

Details Image-forming device and scanning unit for use therein Image-forming device and scanning unit for use therein

2007-02-27

2007-02-27

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C347S243000

Reexamination Certificate

active

11186860

ABSTRACT:
In an image-forming device, a plurality of laser beams is irradiated onto the reflecting surface of a polygon mirror so as to be obliquely incident thereon. A plurality of mixture preventing elements is provided for preventing a laser beam from mixing in optical paths for another light beams.

REFERENCES:
patent: 6801239 (2004-10-01), Nakahata
patent: 6829001 (2004-12-01), Yamakawa
patent: 6873466 (2005-03-01), Hama et al.
patent: 2003/0234857 (2003-12-01), Nakahata
patent: 2004021133 (2004-01-01), None

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