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. 09, 1988
Filed:
Oct. 11, 1984
Masao Ariga, Kawasaki, JP;
Hiroyuki Hattori, Inagi, JP;
Katsuichi Shimizu, Hoya, JP;
Hirotoshi Kishi, Tokyo, JP;
Hiroshi Ogawa, Kawasaki, JP;
Takahiko Amanuma, Tokyo, JP;
Kazumi Umezawa, Kawasaki, JP;
Seiji Sagara, Kawasaki, JP;
Kenji Kurita, Mitaka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus capable of feeding or transporting recording medium of different sizes through the image forming path. A discriminating device determines whether or not a recording medium has reached a predetermined position in the transport path and a detecting member detects the recording medium a predetermined time thereafter to identify the size of the recording medium. If the recording medium is detected within the predetermined time, it is identified as being of a particular size. When the medium is detected during a time period different from the predetermined time period, the medium is identified as being of a size smaller than the particular size. The image formation operation is controlled as a function of the size identification of the recording medium.