Exposure control for a raster output scanner in a multicolor ele

Details Exposure control for a raster output scanner in a multicolor ele Exposure control for a raster output scanner in a multicolor ele

1998-01-08

2000-01-04

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347236, 347240, 347246, 347251, B41J 247

Patent

active

060115769

ABSTRACT:
A system controls the laser-induced discharging of pixel-sized image areas on a photoreceptor in a multi-color xerographic printer where multiple layers of toner are placed on the photoreceptor surface. A light collector, disposed to collect light either reflected from or passing through the photoreceptor, detects conditions in which the laser must pass through one or more layers of previously-placed toner to discharge the photoreceptor. When such a condition is detected, the system increases either the intensity or exposure duration of the laser.

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patent: 5654951 (1997-08-01), Xerox Corporation
patent: 5751437 (1998-05-01), Xerox Corporation

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