Transport system for advancing copy sheets through tandem duplic

Details Transport system for advancing copy sheets through tandem duplic Transport system for advancing copy sheets through tandem duplic

1979-06-13

1980-12-02

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Photographing on both sides of photo-sensitive paper

271 4, 271 6, 355 76, 355104, G03B 2732, G03B 2752

Patent

active

042368146

ABSTRACT:
In a tandem duplicating system, a transport means conveys a copy sheet from a first printing station where an image is applied to the first side of the copy sheet to a second printing station where an image is applied to the second side of the same copy sheet utilizing a suction force for securing the copy sheet to a sheet conveyor, wherein only the image-free side of the copy sheet is contacted or engaged by the conveyor. Advancing copy sheets are delivered to a position subjacent the second printing station where means normally disposed beneath the conveyor are activated to engage the trailing edge of the copy sheet lift it to a position above the transport means and advance the trailing edge of the sheet into gripping means provided in the second printing station for advancing the copy sheet through the second printing station and applying an image to its second side.

REFERENCES:
patent: 4095979 (1978-06-01), DiFrancesco et al.
patent: 4158500 (1979-06-01), DiFrancesco et al.

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