Precession scanning system

Details Precession scanning system Precession scanning system

1981-02-23

1982-12-07

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Reflector between original and photo-sensitive paper

355 8, 355 11, 355 16, 355 51, 355 60, G03B 2770

Patent

active

043623824

ABSTRACT:
The present invention is directed to an object scanning system wherein a dual-rate mirror assembly scans a document on a platen and the scanned image is projected onto a photoreceptor via a corner mirror assembly. The corner mirror assembly is linearly translated during a scan cycle so as to cause the image to be projected onto the photoreceptor in a direction opposite to the photoreceptor movement. The precession rate can be set relative to scanning flyback time so as to reduce or eliminate the interdocument gap on the photoreceptor and to relax rescan time requirements.

REFERENCES:
patent: 3454335 (1969-07-01), Caldwell et al.
patent: 3650621 (1972-03-01), Lewis et al.
patent: 3754822 (1973-08-01), Melrose
patent: 3947188 (1976-03-01), Simpson
patent: 4212532 (1980-07-01), Suzuki
patent: 4232960 (1980-11-01), Glab
patent: 4285590 (1981-08-01), Silverberg

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