Photocopying – Projection printing and copying cameras – Detailed holder for photosensitive paper
Patent
1988-01-28
1989-03-21
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Detailed holder for photosensitive paper
G03B 2760
Patent
active
048148326
ABSTRACT:
An automatic vacuum feed and hold down system is provided having a transport belt with vacuum grippers, a peripheral vacuum channel surrounding the platen, and a lead edge blow apparatus. In the preferred embodiment the transport belt consists of polyester fabric selectively coated with plastisol sealant to define a window area similarly shaped but smaller than the platen and suction grippers within the window area. In the preferred mode of operation a lifting apparatus raises the belt away from the exposed photosensitive sheet on the platen and the natural curl of the sheet, together with the lead edge blow, cause the sheet to release from the platen. The lifting apparatus then lowers the belt and suction is reapplied to the grippers, whereafter the belt and sheet are raised and advanced to deliver the exposed photosensitive sheet for processing.
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IBM Technical Disclosure Bulletin, vol. 14, No. 7, Dec. 1971, Brochure entitled "The Dawn of a New Age in Vertical Camera Technology."
Brookmire Michael
Hotelling Joel
Lein Juergen
Powers Robert
Itek Graphix Corp.
Wintercorn Richard A.
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