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:
Aug. 27, 2013
Filed:
Jan. 27, 2011
Katsuhiro Kojima, Mishima, JP;
Kenji Matsuda, Numazu, JP;
Masaki Ojima, Mishima, JP;
Minoru Matsuguma, Suntou-gun, JP;
Katsuhiro Kojima, Mishima, JP;
Kenji Matsuda, Numazu, JP;
Masaki Ojima, Mishima, JP;
Minoru Matsuguma, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member; a plurality of developing cartridges including respective toner accommodating portions for accommodating toners for forming an image on the image bearing member; a discriminating portion for discriminating color of the toner accommodated in each of the plurality of developing cartridges; a controller capable of controlling an image forming operation in a state in which the developing cartridges, of the plurality of developing cartridges, accommodating the toners of the same color are mounted; and a storing portion for storing lifetime information of the plurality of developing cartridges, respectively. When the developing cartridges accommodating the toners of the same color are mounted, the controller determines the developing cartridge, of the developing cartridges accommodating the toners of the same color, to be used for performing the image forming operation, on the basis of the lifetime information.