Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2007-03-26
2008-12-02
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S256000
Reexamination Certificate
active
07460145
ABSTRACT:
A multi-beam scanning apparatus includes a light source having first and second light source sections that hold a pair of semi-conductor laser diodes and coupling lenses that couple four beams irradiated from the pair of semi-conductor laser diodes with a base member. A light beam deviating device may be provided so as to deviate the four beams. A scan imaging device is also provided so as to scan a scan receiving surface with beam spots of the beams deviated by the light beam deviating device. A beam pitch-detecting device is also provided so as to detect a beam pitch of the respective beams formed on the scan-receiving surface. A beam pitch correcting device is provided in order to correct the beam pitch by causing relative deviation of a light axis among the respective beams on a sub scanning direction cross sectional plane.
REFERENCES:
patent: 5774248 (1998-06-01), Komatsu
patent: 5786594 (1998-07-01), Ito et al.
patent: 5805199 (1998-09-01), Aoki
patent: 5999345 (1999-12-01), Nakajima et al.
patent: 6621512 (2003-09-01), Nakajima et al.
patent: 6771300 (2004-08-01), Amada et al.
patent: 2001/0035999 (2001-11-01), Saito et al.
patent: 2002/0001118 (2002-01-01), Nakajima et al.
patent: 2007/0189008 (2007-08-01), Amada et al.
patent: 1-239520 (1989-09-01), None
patent: 09015521 (1997-01-01), None
patent: 9-189873 (1997-07-01), None
patent: 09325288 (1997-12-01), None
patent: 10-325929 (1998-12-01), None
patent: 2000-223760 (2000-08-01), None
patent: 2001-125026 (2001-05-01), None
patent: 2001-174731 (2001-06-01), None
patent: 2001-194603 (2001-07-01), None
U.S. Appl. No. 12/051,404, filed Mar. 19, 2008, Amada, et al.
Amada Taku
Shimada Kazuyuki
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Pham Hai C
Ricoh & Company, Ltd.
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