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:
Aug. 22, 2001
Kazushige Sakurai, Shizuoka, JP;
Kazumi Yamauchi, Shizuoka, JP;
Tomomi Kakeshita, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus has a cartridge detachably mounted thereon, having unitized as one piece, one or more of a photosensitive body on which an electrostatic latent image is formed, a charging device for charging the photosensitive body, and a developing device for developing the electrostatic latent image formed on the photosensitive body and including a storage medium capable of storing electronic information, an exposing device for exposing the photosensitive body, and a device for detecting a used amount of the cartridge. The storage medium has information stored in advance for determining an exposure condition specific to each cartridge and has an area for writing used amount information of the cartridge detected by the detecting device, and performs control for changing the exposure condition of the photosensitive body based on the information for determining the exposure conditions and the used amount information.