Photocopying – Contact printing – Fluid pressure retention of carrier and receiver in exposure...
Patent
1987-01-21
1988-01-26
Wintercorn, Richard A.
Photocopying
Contact printing
Fluid pressure retention of carrier and receiver in exposure...
G03B 2720
Patent
active
047213833
ABSTRACT:
There is disclosed in accordance with this invention a proofing machine in which the means for exposing the proof paper comprises a light carriage adapted to be moved by the operator to an open position for loading proof paper and negatives and a closed position where the exposure is initiated and thereafter automatically terminated at the end of the exposure cycle and there is provided means for exposing a plurality of proofs of the same size simultaneously as well as to accommodate proofs of different size comprising a plurality of separate and selectively usable vacuum systems and systems of locator pins.
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