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:
Oct. 17, 2023

Filed:

Mar. 29, 2022
Applicants:

Yuuki Aoki, Tokyo, JP;

Seiichi Kogure, Kanagawa, JP;

Hideki Kimura, Kanagawa, JP;

Hiroshi Kikuchi, Kanagawa, JP;

Yutaka Takahashi, Kanagawa, JP;

Yusuke Ishizuka, Kanagawa, JP;

Takuya Akiyama, Kanagawa, JP;

Yutaka Goto, Kanagawa, JP;

Kazuhiro Shimada, Kanagawa, JP;

Inventors:

Yuuki Aoki, Tokyo, JP;

Seiichi Kogure, Kanagawa, JP;

Hideki Kimura, Kanagawa, JP;

Hiroshi Kikuchi, Kanagawa, JP;

Yutaka Takahashi, Kanagawa, JP;

Yusuke Ishizuka, Kanagawa, JP;

Takuya Akiyama, Kanagawa, JP;

Yutaka Goto, Kanagawa, JP;

Kazuhiro Shimada, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/1675 (2013.01); G03G 15/167 (2013.01);
Abstract

An image forming apparatus includes an image bearer; a nip forming member configured to form a transfer nip between the image bearer and the nip forming member; a nip pressure changer configured to change a nip pressure of the transfer nip; a transfer bias applier configured to apply, to the transfer nip, a transfer bias in which an AC component is superimposed on a DC component; and a DC component adjuster configured to adjust the DC component in the transfer bias, according to the nip pressure that is changed by the nip pressure changer.


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