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:
Feb. 01, 2005
Filed:
Mar. 06, 2001
Shigeharu Maehara, Nara, JP;
Shigeharu Maehara, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus in which printing with a developer whose lifetime has been exceeded can be prevented to avoid unstable printing, and an image forming apparatus in which erroneous insertion of a developer supply container can be prevented from occurring are is provided. An image forming apparatus has an apparatus body having an image forming unit, and a developer supply container which is detachably attached to the image forming unit to supply a developer in accordance with image formation. An IC chip having a nonvolatile memory for storing information relating to the developer supply container is disposed in the developer supply container. Processing means having a function of writing predetermined information into the nonvolatile memory is disposed in the apparatus body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile