Automatic original sheet feeder for setting sheet at the central

Photocopying – Projection printing and copying cameras – Image transferred from individual documents to film strip

Patent

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Details

355 50, 271227, 271258, 271265, G03B 2732, G03B 2752

Patent

active

049822284

ABSTRACT:
An automatic original sheet feeder for automatically feeding an original sheet to the central portion of a platen of an image reading apparatus is disclosed, in which the orignal sheet on an original sheet tray is supplied to the platen by a feeding device. The length of the original sheet is detected by a control unit. The required distance for the original sheet to be fed is calculated depending upon the distance from a predetermined position and the central portion of the platen and the length of the original sheet. The feeding device sends the original sheet to the platen by the calculated distance, and the central portion of the original sheet is made to coincide with the central portion of the platen.

REFERENCES:
patent: 3623806 (1971-11-01), Short
patent: 4073391 (1978-02-01), O'Brien et al.
patent: 4264187 (1981-04-01), Rhodes, Jr.
patent: 4606536 (1986-08-01), Ohara
patent: 4653008 (1987-03-01), Koi et al.
patent: 4731639 (1988-03-01), Gutmann et al.
patent: 4786042 (1988-11-01), Stemmle

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