Optical writing device and image forming apparatus

Details Optical writing device and image forming apparatus Optical writing device and image forming apparatus

2008-02-21

2010-06-08

Pham, Hai C (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S246000

Reexamination Certificate

active

07733362

ABSTRACT:
A rotating deflection unit deflects a laser light emitted from a light-emitting element and performs a scanning with the laser light. A light-intensity detecting unit detects a light intensity of the laser light. A current control unit controls a current to be supplied to the light-emitting element so that the light intensity of the laser light reaches a target light intensity. An initializing unit determines an initial current value with which the target light intensity is obtained from the light-emitting element by eliminating an influence of a noise caused by a reflected light input into the light-intensity detecting unit from the rotating deflection unit.

REFERENCES:
patent: 5561285 (1996-10-01), Sakata et al.
patent: 5933266 (1999-08-01), Minakuchi
patent: 2-24431 (1990-05-01), None
patent: 8-295048 (1996-11-01), None
patent: 2002-182146 (2002-06-01), None
patent: 3880914 (2006-11-01), None
patent: 2007-148356 (2007-06-01), None

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