Scanning optical apparatus and method, and image forming...

Details Scanning optical apparatus and method, and image forming... Scanning optical apparatus and method, and image forming...

2008-02-19

2010-11-09

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

07830576

ABSTRACT:
A scanning optical apparatus includes a plurality of rotatable polygonal mirrors for scanningly deflecting laser beams; a plurality of optical members provided across optical paths of the beams deflected by the rotatable polygonal mirrors; vibration detecting means for detecting vibration of at least one of the optical members during driving of the rotatable polygonal mirrors; phase control means for controlling a phase relation between the rotatable polygonal mirrors on the basis of an output of the vibration detecting means.

REFERENCES:
patent: 7072087 (2006-07-01), Nakahata
patent: 2005/0285929 (2005-12-01), Nakahata
patent: 2006/0266937 (2006-11-01), Fukase
patent: 2007/0053041 (2007-03-01), Nakahata
patent: 9-114162 (1997-05-01), None
patent: 10-213759 (1998-08-01), None
patent: 2001-264674 (2001-09-01), None
patent: 2005-156919 (2005-06-01), None

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