Optical scanning apparatus, image forming apparatus and...

Details Optical scanning apparatus, image forming apparatus and... Optical scanning apparatus, image forming apparatus and...

2008-05-12

2011-11-08

Pham, Hai C (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S247000

Reexamination Certificate

active

08054325

ABSTRACT:
An optical scanning apparatus capable of being applied to an image forming apparatus includes a light source which emits a light beam; a modulator which pulse-width modulates drive current supplied to the light source; and a current adding unit which adds a supplemental current to the pulse-width modulated drive current at the rising edge of a pulse thereof.

REFERENCES:
patent: 6724376 (2004-04-01), Sakura et al.
patent: 6917639 (2005-07-01), Ishida et al.
patent: 7180919 (2007-02-01), Kurusu
patent: 7701480 (2010-04-01), Omori et al.
patent: 7-22679 (1995-01-01), None

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