Document belt with discrete vacuum areas

Details Document belt with discrete vacuum areas Document belt with discrete vacuum areas

1980-01-10

1981-09-01

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Detailed holder for original

G03B 2762, G03B 2764

Patent

active

042868700

ABSTRACT:
In an apertured vacuum belt document handling system for transporting documents to the exposure station of a copier the vacuum apertures are limited to discrete minor areas spaced circumferentially along the belt between unapertured areas, each vacuum apertured area being smaller than the smallest document to be transported. A document is registered in a loading station against the belt completely overlying one vacuum apertured area and advanced on the belt without slippage from the loading station to the exposure station, where the spacing from the other vacuum apertured areas is such that none of them are exposed.

REFERENCES:
patent: 3123354 (1964-03-01), Ungerer
patent: 3425610 (1969-02-01), Stewart
patent: 3452982 (1969-07-01), Bischoff
patent: 3477558 (1969-11-01), Fleischauer
patent: 3583614 (1971-06-01), Foster
patent: 3677643 (1972-07-01), Sagawa
patent: 3863912 (1975-02-01), Korff
patent: 3910570 (1975-10-01), Bleau
patent: 4043665 (1977-02-01), Stemmle
patent: 4043665 (1977-08-01), Caldwell
patent: 4047812 (1977-09-01), Hogan

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