Apparatus and method for generating images by producing light sp

Details Apparatus and method for generating images by producing light sp Apparatus and method for generating images by producing light sp

1988-01-12

1989-02-28

Miller, Jr., George H.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346 11, 346 75, 346 76PH, 400118, G01D 942, G01D 1518, G01D 1510, B41J 300

Patent

active

048090212

ABSTRACT:
An electro-optical light scanning system using a modulated laser illumination source directed upon a multi-faceted rotating polygonal mirror or polygon. The mirrored facets reflect the impinging light toward a moving photoreceptor and forms a raster of scan lines as the photoreceptor moves to create dot images on the photoreceptor. The invention also encompasses amplitude modulation for varying the intensity of the laser illumination in conjunction with acousto-optical modulation for maintaining a constant level illumination and/or for varying dot size. Other embodiments describe producing dot size variation in an ink jet printer, a light emitting diode printer and a thermal printer.

REFERENCES:
patent: 3471847 (1969-10-01), McCollough et al.
patent: 3884148 (1975-05-01), Bergeron
patent: 4050077 (1977-09-01), Yamada et al.
patent: 4052719 (1977-10-01), Hutt et al.
patent: 4281333 (1981-07-01), Tsuzuki et al.

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