Double dual rate precession scan system

Details Double dual rate precession scan system Double dual rate precession scan system

1985-06-24

1987-06-02

Braun, Fred L.

Photocopying

Including fiber optics

355 55, G03G 1528

Patent

active

046698574

ABSTRACT:
An electrophotographic printing system incorporates two sets of moving optical components, one on each side of a projection lens. A document on a platen is scanned by a first set of moving mirrors with the scanned image projected by a lens towards a photoreceptor. A second set of moving mirrors precesses the image onto the photoreceptor. In one embodiment, a drive system commonly drives both the object side and the image side mirrors to provide the required document scan and precess motions. In a second embodiment, the image side system is driven as a function of the photoreceptor (process) speed.

REFERENCES:
patent: 3542467 (1970-11-01), Ferguson et al.
patent: 3614222 (1971-10-01), Post et al.
patent: 4265990 (1981-05-01), Stolka et al.
patent: 4336995 (1982-06-01), Durbin et al.
patent: 4351605 (1982-09-01), Carpenter et al.
patent: 4362382 (1982-12-01), Simpson
patent: 4397264 (1983-08-01), Hatch
patent: 4484810 (1984-11-01), Spinelli
U.S. Ser. No. 642,272, Stoffel et al. filed 08/1984.

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