Electronic color printing system

Details Electronic color printing system Electronic color printing system

1989-11-06

1990-12-11

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

355202, 358 75, G01D 1516, H04N 146

Patent

active

049774115

ABSTRACT:
A line-at-a-time printer is realized by directing a collimated light beam through an interaction area of an electro-optic light modulator while successive sheets of data samples are sequentially applied to electrodes positioned across the width of the modulator. A modulated line latent image is formed on the surface of a photoreceptor, the photoreceptor being indexed to create successive exposed, modulated line images on its surface. Electronic registration control of successive images, for example in a color printing process, is achieved by a control system which triggers the light beam source between the time interval during which data signals are loaded into the modulator. In one embodiment the pulse sourcing is accomplished through a feedback loop which includes a sensor for monitoring movement of the photoreceptor and application of the light source pulses and the data samples.

REFERENCES:
patent: 4389659 (1983-06-01), Sprague
patent: 4403848 (1983-09-01), Snelling
patent: 4477175 (1984-10-01), Snelling
patent: 4912491 (1990-03-01), Hoshino et al.
patent: 4918465 (1990-04-01), Morita
patent: 4937664 (1990-06-01), Chiku et al.

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