Copying machine with automatic document feeding means

Details Copying machine with automatic document feeding means Copying machine with automatic document feeding means

1989-05-18

1990-04-24

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355243, G03G 2100, G03G 1506

Patent

active

049203843

ABSTRACT:
A copying machine with automatic document feeder has two document size detectors. On detects document size by means of sensors when the document is on a document carrying table before it is transported by a feeding apparatus to a copying position. The other detects at least the length of the document in the direction of its motion. If different sizes are detected by the two detectors, the size of copy paper and magnification to be used in the copying are determined on the basis of the document size detected by the latter detector. With a feeder of this invention, document size can be detected accurately and efficiently.

REFERENCES:
patent: 4277163 (1981-07-01), Ikesue et al.
patent: 4575227 (1986-03-01), Ito et al.
patent: 4576472 (1986-03-01), Ito et al.
patent: 4585332 (1986-04-01), Shenoy
patent: 4622594 (1986-11-01), Honjo et al.
patent: 4647188 (1987-03-01), Komiya et al.
patent: 4647189 (1987-03-01), Fujiwara et al.
patent: 4669858 (1987-06-01), Ito et al.

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