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:
Jul. 13, 2004
Filed:
May. 10, 2001
Yasuhiro Matsumoto, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for determining whether a developer container for containing developer is attached to an image forming apparatus includes the steps of detecting information pertaining to a magnetic permeability of the developer in the developer container; and determining whether the developer container is attached to the image forming apparatus in accordance with outputs obtained in the detecting step. With the adoption of the foregoing method, there is no need for separately providing any sensor or the like, which is dedicated to determining whether the developer container is attached to the image forming apparatus. As a result, it is possible to reduce the cost of making the image forming apparatus and to reduce the size of the image forming apparatus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile