Flexible document platen

Details Flexible document platen Flexible document platen

1986-01-17

1987-05-19

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for original

G03B 2762

Patent

active

046662936

ABSTRACT:
The present invention is directed toward a flexible plastic platen used as a document support surface in a copying/printing machine. The platen, in a preferred embodiment, is an optically clear polycarbonate sheet, inexpensive and easy to handle. The platen is mounted in a machine frame so as to be slightly flexed upward along a width area corresponding to the area to be scan-illuminated to ensure accurate focusing of the document image through an underlying linear lens array. The platen is easily replaced by releasing the tension and lifting the platen out of a seated position.

REFERENCES:
patent: 2226157 (1940-12-01), Christie et al.
patent: 2638827 (1953-05-01), Leavitt et al.
patent: 2970514 (1961-02-01), Collins
patent: 4154526 (1979-05-01), Kostiner
patent: 4566787 (1986-01-01), Lullau

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