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:
Jun. 21, 2011
Filed:
Dec. 12, 2007
Jun Shiori, Kanagawa, JP;
Toshihiro Sugiyama, Tokyo, JP;
Atsushi Tano, Kanagawa, JP;
Tadashi Kasai, Kanagawa, JP;
Yutaka Takahashi, Kanagawa, JP;
Takehide Mizutani, Kanagawa, JP;
Jun Shiori, Kanagawa, JP;
Toshihiro Sugiyama, Tokyo, JP;
Atsushi Tano, Kanagawa, JP;
Tadashi Kasai, Kanagawa, JP;
Yutaka Takahashi, Kanagawa, JP;
Takehide Mizutani, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A control unit controls a device that executes an image forming process, compares changes of each toner adhesion amount in an image-density-detection pattern image when a developing-bias control condition is changed, with respect to a toner adhesion amount in an image-density-detection pattern image in a normal status, performs a malfunction-occurrence prediction process according to the degree of each change of the densities, and displays the result.