Optical printer

Details Optical printer Optical printer

1990-07-03

1992-06-30

Reinhart, Mark J.

Recorders

Light or beam recording

Including record receiver or handling means therefor

377 54, 377 67, G11C 1900

Patent

active

051267586

ABSTRACT:
An optical printer with a print head having numerous light emitting elements for reproducing medium densities of a multi-tone document image faithfully. When image data are inputted to individual serial shift registers, the entry of next image data is inhibited and, in response to a clock signal having a predetermined frequency, light emitting elements associated one-to-one with the shift registers are each turned on for a particular period of time associated with a logical value of an internal state stored in the associated shift register. The frequency of the clock signal is variable to adjust the turn-on time of the light emitting elements as desired.

REFERENCES:
patent: 4413269 (1983-11-01), Pawletko et al.
patent: 4731673 (1988-03-01), Yamakawa
patent: 4937591 (1990-06-01), Miyake et al.
patent: 4983989 (1991-01-01), Komuro et al.

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