Precession scanning system for copier device

Details Precession scanning system for copier device Precession scanning system for copier device

G - Physics

03

G

314/28

G03G 15/04 (2006.01) G03B 27/52 (2006.01) G03G 15/02 (2006.01)

Patent

CA 1165805

ABSTRACT The present invention is directed to an object scanning system wherein the illumination scanning means employed travels at a rate which is greater than that of a flat photoreceptor moving in the same direction. In one embodiment, a dual rate mirror assembly scans a document on a platen at a first rate which is greater than the process speed set for a photoreceptor belt. The image is projected through a lens and precessed by a mirror arrangement along the belt surface in a direction opposite to the belt travel. The precession rate can be set relative to the scanning flyback time, so as to reduce or eliminate an interdocument gap on the photoreceptor and to lower process speeds for a given copy rate.

382960

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