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. 16, 1984
Filed:
Dec. 04, 1979
Katsushi Furuichi, Yokohama, JP;
Yoshikazu Yokomizo, Kawagoe, JP;
Toshio Honma, Tokyo, JP;
Katsumi Murakami, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a process input device for setting various data for image formation, process unit for making images on a recording medium repeatedly in accordance with the data set by the input device, detection devices for detecting a trouble of the process unit, a control unit for selectively controlling the detecting operations of the detection devices, and circuitry for preventing the image forming operation in response to the detection of a trouble by the detection devices. In the apparatus, diagnosis is executed for objects to which it is necessary and the image forming process is controlled by the outcome of the diagnosis.