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:
Nov. 12, 2013
Filed:
Feb. 04, 2010
Yasuhiro Suda, Fukushima, JP;
Yasuhiro Suda, Fukushima, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
A process cartridge includes a toner reservoir. A first controller calculates a consumed amount of toner based on image data. A toner bottle is attached to the process cartridge. The toner bottle includes a toner chamber that holds the toner therein and supplies the toner into the reservoir. The toner bottle includes a first memory holding first information on a first amount of toner in the toner chamber and first identification information on the toner bottle. A second memory holds second information on a second amount of toner in the reservoir and second identification information on the toner bottle. If the first and second identification information do not coincide, it is determined that the toner bottle has been replaced and then the first information and the second information are updated based on the first information, the second information, and a capacity of the toner chamber.