Copier registration method and apparatus

Details Copier registration method and apparatus Copier registration method and apparatus

1981-03-04

1982-06-22

Witkowski, S. J.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3SH, 271236, 271251, G03G 1500, B65H 910

Patent

active

043359540

ABSTRACT:
In a copier, a recirculating document handler having a corner registering mechanism for precisely positioning a document on a platen prior to imaging. The document is initially driven onto the platen and then corner registered against two mutually orthogonal edge guides by a dual paddle wheel drive mechanism. A clamp plate mounted above the platen is then lowered to flaten the document against the platen thereby insuring it is imaged in the copier's depth of field. Once the document is imaged it is side shifted away from one of the edge guides and driven from the platen and stacked in a copier stacking tray. This process of registering, clamping, and removing is repeated for successive documents rapidly enough to have a document throughput of greater than one per second.

REFERENCES:
patent: 3623806 (1971-11-01), Short
patent: 3630607 (1971-12-01), Korn
patent: 3888585 (1975-06-01), Cross
patent: 3908986 (1975-09-01), Bleau
patent: 3921974 (1975-11-01), Miciukiewicz
patent: 3944366 (1976-03-01), Robertson
patent: 4049256 (1977-09-01), Church et al.
patent: 4058359 (1977-11-01), Urselmann
patent: 4266762 (1981-05-01), Kramer et al.
patent: 4278344 (1981-07-01), Sahay
patent: 4285512 (1981-08-01), Shaltz
Xerox Disclosure Journal, vol. 5, No. 6, Nov./Dec., 1980, p. 595, "Direct Control Paddle Wheel", Gerald M. Garavuso.

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