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:
May. 08, 2007
Filed:
Feb. 08, 2005
Hideaki Hasegawa, Susono, JP;
Takeo Shoji, Shizuoka-ken, JP;
Satoshi Sunahara, Shizuoka-ken, JP;
Atsushi Toda, Mishima, JP;
Hideaki Hasegawa, Susono, JP;
Takeo Shoji, Shizuoka-ken, JP;
Satoshi Sunahara, Shizuoka-ken, JP;
Atsushi Toda, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an image forming apparatus group including a plurality of kinds of image forming apparatuses having different process speeds, and a cartridge which can be commonly used in a plurality of kinds of image forming apparatuses, when there is provided a cartridge which can be detachably mountable to both a first image forming apparatus and a second image forming apparatus having different process speeds, n a control operation is carried out such that the difference between the peak-to-peak A.C. voltages in first and second first image forming apparatus main bodies varies with an increase in amount of used toners in the cartridge. Even when use of the cartridge is changed between the image forming apparatuses in the middle of being used, the image density level of an output image can be maintained nearly constant.