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.

Date of Patent:
Jun. 14, 2016

Filed:

Jan. 05, 2015
Applicants:

Daisuke Ito, Kanagawa, JP;

Ken Yoshida, Kanagawa, JP;

Keiko Matsumoto, Kanagawa, JP;

Yoichi Sakurai, Kanagawa, JP;

Daisuke Takahashi, Kanagawa, JP;

Inventors:

Daisuke Ito, Kanagawa, JP;

Ken Yoshida, Kanagawa, JP;

Keiko Matsumoto, Kanagawa, JP;

Yoichi Sakurai, Kanagawa, JP;

Daisuke Takahashi, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0822 (2013.01); G03G 15/0121 (2013.01); G03G 15/0126 (2013.01); G03G 15/0142 (2013.01); G03G 15/0189 (2013.01); G03G 2215/0607 (2013.01);
Abstract

An image forming apparatus includes at least one image bearer; multiple developing devices to develop the latent images with developers including toner and carrier into a toner image; multiple developer supply devices to supply the developers to the multiple developing devices, respectively; and a fixing device to fix the toner image on a sheet of recording media. When one of the multiple developing devices positioned at a shortest distance from an outline of the fixing device is referred to as a first developing device, and one of the multiple developer supply devices that supplies developer to the first developing device is referred to as a first developer supply device, the first developer supply device is greater in percentage by weight of carrier in developer supplied to the first developing device than rest of the multiple developer supply devices.


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