Photocopying – Contact printing – With scanning
Patent
1989-11-17
1990-10-09
Wintercorn, Richard A.
Photocopying
Contact printing
With scanning
355 91, 355 94, G03B 2710, G03B 2720
Patent
active
049624059
ABSTRACT:
An improvement in a contact printer which comprises means for supporting a film and an original in superposed relationship on a vacuum table, means for providing a source of light for exposing the film through the original, and means for moving the light over the surface of the superposed film and original. The improvement comprises means carried by the light moving means for covering the superposed film and original with a substantially impervious flexible and transparent cover sheet as the exposing light is scanned across the film and original whereby the vacuum is applied to the film and the original to remove air from therebetween as the film is exposed by the light through the cover sheet and the original.
REFERENCES:
patent: 3560090 (1971-02-01), Jones
patent: 3584955 (1971-06-01), Stievenart et al.
patent: 3851969 (1974-12-01), Haus
patent: 4029404 (1977-06-01), Mizukami et al.
patent: 4302103 (1981-11-01), Zeunen
patent: 4316669 (1982-02-01), Tachiki
patent: 4437759 (1984-03-01), Mizukami et al.
patent: 4466737 (1984-08-01), Hastings
patent: 4526463 (1985-07-01), Hickey et al.
patent: 4707125 (1987-11-01), Ohlig et al.
Jones Robert S.
Maurer John J.
Eastman Kodak Company
Randall Robert L.
Wintercorn Richard A.
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