Laser irradiation device of laser printers

Details Laser irradiation device of laser printers Laser irradiation device of laser printers

1993-10-29

1997-01-28

Reinhart, Mark J.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347259, B41J 247

Patent

active

055982034

ABSTRACT:
This invention relates to a laser irradiation device of laser printers in which has a simplified laser diode excitation control device, comprising a laser beam emitter, a first lens for converting the laser beam emitted from the laser beam emitter into parallel laser beam, a polygonal mirror for reflecting the parallel laser beam, the polygonal mirror being rotated and having a plurality of reflection surfaces and sensing part, the sensing part sensing the starting points of each reflection surfaces, a second lens for receiving the laser beam reflected by the polygonal mL-Tor, and a controller for synthesizing an output signal from the sensing part of the polygonal mirror with a picture signal and generating control signal to control the laser beam emitter.

REFERENCES:
patent: 4847492 (1989-07-01), Houki

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