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:
Jul. 28, 1987
Filed:
Aug. 23, 1985
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An electrophotographic copying apparatus is disclosed, which is provided with an original document size detector for detecting the size of an original document placed on a document platform. Further provided is a selector for selecting various magnification changing elements which calculate and select, on the basis of the size of the original document detected by the original document size detector and, the predetermined size of copy paper or the predetermined magnification ratio, a proper magnification ratio when the size of copy paper is predetermined, or a proper size of copy paper when the magnification ratio is predetermined. In the case that either or both of the original document and the copy paper are capable of being placed in such manner that the longitudinal direction thereof is brought in either a crossing or parallel relation with respect to the exposure scanning direction, an indicator for changing the direction of placement of the original document which indicates to change the direction of placement of the original document to such that the magnification ratio is larger or the image forming area does not exceed the size of the copy paper.