The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 1988
Filed:
Nov. 29, 1985
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; B65H / ;
U.S. Cl.
CPC ...
271-9 ; 271259 ; 355 / ;
Abstract
A paper feeder for an electronic copying machine or the like has a plurality of cassettes for storing paper sheets, feeding mechanisms for feeding the paper sheets from a selected cassette, detectors for detecting the size, feeding direction or presence or absence of the paper sheets in the selected cassette, a CPU for performing an automatic change from a cassette with no paper sheets to a cassette storing paper sheets of the same size and feeding direction, and an automatic changer for prohibiting or selecting the automatic changing mode. An accidental automatic change between the cassettes is prevented.