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:
Oct. 01, 1991
Filed:
Dec. 23, 1987
Applicant:
Inventors:
Yoshiaki Takano, Osaka, JP;
Masazumi Ito, Osaka, JP;
Keiji Kusumoto, Osaka, JP;
Takashi Noda, Osaka, JP;
Masaaki Oyabu, Osaka, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355208 ; 271265 ; 355309 ; 355311 ;
Abstract
An image forming apparatus includes various image forming units and a detachable paper cassette with data on its outer surface as to thickness, talc content, quality and the type of copy paper; the image forming units being controlled in accordance with the data when the cassette is changed. The apparatus also includes a device for marking a mark corresponding to the number of sheets of the copy paper used so as to detect the number of sheets remaining in the cassette.