Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2006-08-11
2009-12-08
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S259000
Reexamination Certificate
active
07629992
ABSTRACT:
In a scanning optical device which deflection-scans a plurality of fluxes of light by one rotary polygon mirror to form a multi-color image by irradiating beams on a plurality of photosensitive drums, respective, the fluxes of light being incident on the rotary polygon mirror have different angles with respect to a reference plane defined by a normal line of a reflecting surface of the rotary polygon mirror and a rotating direction of the rotary polygon mirror, and a flux of light deflection-scanned at the largest angle between the flux of light and the reference plane is irradiated on a photosensitive drum on which a color image having the highest brightness is formed. With this configuration, a scanning optical device in which a defective image caused by an optical facet angle error can be improved without improving the precision of parts and an image forming apparatus including the scanning optical device are provided.
REFERENCES:
patent: 5883455 (1999-03-01), Fukasawa et al.
patent: 6304360 (2001-10-01), Sekikawa
patent: 7072087 (2006-07-01), Nakahata
patent: 7295359 (2007-11-01), Fujita et al.
patent: 2005/0285929 (2005-12-01), Nakahata
patent: 2006/0275058 (2006-12-01), Omata
patent: 9-21974 (1997-01-01), None
patent: 2004-102006 (2004-04-01), None
patent: 2004-287237 (2004-10-01), None
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Pham Hai C
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