US 5,206,689 AGranted

Copy ratio setting apparatus

AssigneeMinolta Camera Kabushiki Kaisha

InventorYasuhiro Kusuda

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Abstract

An image forming apparatus provides for the scanning of an original document when placed on a document table. The scanning operation moves from a predetermined position along a predetermined scanning direction. A specifying arrangement for specifying an original document area is provided which is movable along one side of the document table along with a second specifying arrangement for specifying a copy area which is also movable in parallel with the side of the document table. Both specifying arrangements include magnetic members. A detector is incorporated with the scanner so as to detect positions of the specifying arrangements. Signals are generated when the detector detects the magnetic members of the specifying arrangements during the scanning operation. A copy ratio is then computed based on a comparison of the signals which have been detected so that an image is formed which corresponds to the document and the computed copy ratio.

Claims5

Dependent claims

A copying apparatus comprising:

a rectangular document table,
first specifying means, which is movable in parallel with one side of said document table to an arbitrary position, for specifying a position,
second specifying means, which is movable in parallel with the same side of said document table to an arbitrary position, for specifying a position representative of a portion of an area on a paper onto which an image of the document is to be formed,
first signal generating means for generating a first signal corresponding to the position of said first specifying means,
second signal generating means for generating a second signal corresponding to the position of said second specifying means,
computing means for computing a copy ratio based on the first and the second signals,
a plurality of paper feeding means,
selecting means for selecting one of said paper feeding means based on the second signal, and
image forming means for forming an image corresponding to a document onto the paper fed from the selected paper feeding means with the above copy ratio.

6 more elements

Dependencies are inferred from the claim text.