Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2011-05-03
2011-05-03
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S246000
Reexamination Certificate
active
07936367
ABSTRACT:
An image forming apparatus includes an optical scanning device that scans a scan area on an image carrier with light flux containing image information and writes the image information onto an image area in the scan area. In the optical scanning device, a first light receiving unit receives light flux emitted from a light source and reflected by a reflecting optical unit; a second light receiving unit receives light flux that passes through an aperture of the reflecting optical unit, is deflected by a deflecting unit, and heads for outside the image area within the scan area; and a control unit controls a drive signal of the light source based on signals output from the first and second light receiving units.
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Ishida Masaaki
Nihei Yasuhiro
Omori Atsufumi
Ozasa Dan
Tanabe Jun
Dickstein & Shapiro LLP
Pham Hai C
Ricoh & Company, Ltd.
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