Optical recording apparatus capable of controlling optical power

Details Optical recording apparatus capable of controlling optical power Optical recording apparatus capable of controlling optical power

1993-05-17

1995-07-11

Reinhart, Mark J.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

B41J 2435

Patent

active

054325374

ABSTRACT:
An optical recording apparatus comprises a laser diode array including a plurality of laser diodes for producing a plurality of laser beams in response to a drive signal indicative of an image, an optical system for scanning the laser beams on a surface of a photosensitive body, a beam splitting unit for splitting the laser beams produced by the laser diodes to form control laser beams; a driver for driving each of the laser diodes in the laser diode array, an optical detection unit provided for detecting the control laser beams, the optical detection unit including a plurality of photodetectors in correspondence to the laser diodes in the laser diode array in a one-to-one relationship, each of the photodetectors producing an output signal indicative of an optical power of the control laser beam incident thereto, and a control unit supplied with the output signals from the photodetectors in the optical detection unit for controlling the driver such that each of the laser diodes in the laser diode array produces the laser beam with a controlled optical power.

REFERENCES:
patent: 4063226 (1977-12-01), Kozma et al.
patent: 4733253 (1988-03-01), Daniele
patent: 4834477 (1989-05-01), Tomita et al.
patent: 4953171 (1990-08-01), Nakajima et al.
patent: 5002348 (1991-03-01), Wolf
English language abstract of Japanese Laid-Open application No. 59-19252.
English language abstract of Japanese Laid-Open application No. 62-273863.
English language abstract of Japanese Laid-Open application No. 1-106486.

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