Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2007-06-07
2010-12-14
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S247000
Reexamination Certificate
active
07852363
ABSTRACT:
A light scanning apparatus includes a plurality of light sources. A detection unit detects the light power of a light beam output from at least one of the plurality of light sources. A control unit controls the driving current of at least one selected light source on the basis of the detection result by the detection unit such that the light power of the selected light source equals a target light power. The light source is selected from the plurality of light sources on the basis of the light-emitting characteristic of each light source. The control unit controls, on the basis of the driving current of the selected light source, the driving currents of light sources which remain unselected in the plurality of light sources.
REFERENCES:
patent: 6069645 (2000-05-01), Vincent
patent: 6144680 (2000-11-01), Kaji et al.
patent: 7170536 (2007-01-01), Inagawa et al.
patent: 7199769 (2007-04-01), Hyuga
patent: 7535939 (2009-05-01), Kawamoto et al.
patent: 2005/0280694 (2005-12-01), Tsujino et al.
patent: 1743894 (2006-03-01), None
patent: 63-142392 (1988-06-01), None
patent: 63-292763 (1988-11-01), None
Office Action dated May 8, 2009 for related Chinese application No. 200710110225.2. No translation readily available.
Canon Kabushiki Kaisha
Pham Hai C
Rossi Kimms & McDowell LLP
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