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:
Mar. 21, 2017
Filed:
Sep. 08, 2015
Mutsuki Morinaga, Kanagawa, JP;
Tadashi Kasai, Kanagawa, JP;
Jun Hitosugi, Tokyo, JP;
Takamasa Ozeki, Kanagawa, JP;
Makoto Yasuda, Kanagawa, JP;
Kunio Hasegawa, Kanagawa, JP;
Emiko Shiraishi, Tokyo, JP;
Wakana Itoh, Kanagawa, JP;
Takatsugu Komori, Chiba, JP;
Hitoshi Yamamoto, Kanagawa, JP;
Mutsuki Morinaga, Kanagawa, JP;
Tadashi Kasai, Kanagawa, JP;
Jun Hitosugi, Tokyo, JP;
Takamasa Ozeki, Kanagawa, JP;
Makoto Yasuda, Kanagawa, JP;
Kunio Hasegawa, Kanagawa, JP;
Emiko Shiraishi, Tokyo, JP;
Wakana Itoh, Kanagawa, JP;
Takatsugu Komori, Chiba, JP;
Hitoshi Yamamoto, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a latent image bearer, a developing device, a supplier, and a controller. The controller controls the supplier according to a detection result of a toner density by the toner density sensor and a toner density target value to adjust the toner density of developer in the developing device. The controller is configured to correct the toner density target value and an imaging condition affecting a toner adhesion amount of an output image separately from the toner density, according to a component adhesion deterioration degree being a deterioration degree of carrier due to adhesion of a toner component, obtained based on at least an average image area ratio of the output image, and a coating abrasion deterioration degree being a progression degree of deterioration due to coating abrasion of the carrier, obtained based on at least the average image area ratio of the output image.