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:
Jun. 18, 2002
Filed:
Dec. 29, 1998
Motoaki Tahara, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Machine discrimination data stored in an information storage area of a memory in a body of an image formation apparatus is read, and data stored in a machine information storage area of a memory in a cartridge mounted in the image formation apparatus is read. If the data in the cartridge is not “0”, it is judged whether or not the data in the body is identical with the data in the cartridge. If not identical, an error flag is set into “1”, and it is considered that a mounting error occurs, and controlling to prohibit image formation is performed. On the other hand, if the data in the cartridge is “0”, the mounted cartridge is considered as an unused cartridge, and the machine discrimination data of the body is stored in the mounted cartridge.