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:
May. 30, 1995
Filed:
Aug. 17, 1993
Masao Ariga, Kawasaki, JP;
Hiroyuki Miyake, Inagi, JP;
Katsuichi Shimizu, Hoya, JP;
Hirotoshi Kishi, Hoya, 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 includes an image forming mechanism for forming an image and a matrix circuit having connected thereto a plurality of keys including an initiating key for instructing the start of image formation and a stop key for interrupting image formation. The image forming apparatus further includes a controller for controlling image formation by the image forming mechanism in accordance with a control sequence and a memory containing a program for sensing key input of the matrix circuit. Prior to the start of image formation, the controller executes the program for sensing key input of the matrix circuit and executes the control sequence in response to the sensing input of the initiating key. During image formation, the controller executes the program for sensing key input of the matrix circuit such that sensing whether the stop key has been input is executed without sensing whether the initiating key has been input.