Banding-free printing by linear array of photosources

Details Banding-free printing by linear array of photosources Banding-free printing by linear array of photosources

1982-05-27

1984-10-02

Miller, Jr., George H.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

178 90, 354 7, G01D 942, H04L 1530, G03B 1500

Patent

active

044751150

ABSTRACT:
To prevent banding in a flat field exposed--by means of a linear array of photosources--upon a moving photosensitive web, the invention not only provides that the photosources be pulsed in correspondence with the movement of the photosensitive web, but that the lengths of the printing spots which are employed be equal (or approximately so) to the raster line spacing, whereby smear of any one exposure spot will blend into the smear from the next exposure spot to provide a perfectly flat field exposure.

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