Color printer

Recorders – Light or beam recording – Including record receiver or handling means therefor

Patent

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Details

346108, 346157, 355327, G03G 1501

Patent

active

052297870

ABSTRACT:
The present invention relates to a color printer which forms multiple latent images on the surface of a belt type photoreceptor in a single pass. The invention enables the placement of imaging stations on both a tensioned and non-tensioned side of the belt. On the non-tensioned, an asynchronous line at a time printer such as an LED print bar is used to form the latent image in response to video data signals. On the tensioned side of the belt, either synchronous type imagers, such as laser ROSs or asynchronous imagers such as LED print bars may be located to form the latent image. The leading edges of each image frame are registered according to known methods. Each scan line within an image frame is registered by comparing the belt speed beneath each of the imagers and generating a correction signal to the asynchronous print bar. Since the print bar operates asynchronously, it is possible to vary the pulsed line write time so as to register each of the scan lines formed by the print bar with the scan line being formed by the imagers at the tensioned side of the belt.

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