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:
Dec. 02, 2008
Filed:
Nov. 28, 2005
Atsushi Sampe, Kanagawa-ken, JP;
Yoshiyuki Kimura, Tokyo-to, JP;
Hiroyuki Nagashima, Kanagawa-ken, JP;
Hiroshi Hosokawa, Kanagawa-ken, JP;
Wakako Murakami, Tokyo-to, JP;
Nobuo Kuwabara, Kanagawa-ken, JP;
Atsushi Sampe, Kanagawa-ken, JP;
Yoshiyuki Kimura, Tokyo-to, JP;
Hiroyuki Nagashima, Kanagawa-ken, JP;
Hiroshi Hosokawa, Kanagawa-ken, JP;
Wakako Murakami, Tokyo-to, JP;
Nobuo Kuwabara, Kanagawa-ken, JP;
Ricoh Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes an image carrying member, a charging roller for charging the image carrying member, a charging roller cleaning roller, and first and second shaft bearings. The charging roller cleaning roller contacts and cleans a surface of the charging roller. The first shaft bearing rotatably holds a rotation shaft of the charging roller cleaning roller, while the second shaft bearing rotatably holds a rotation shaft of the charging roller. The second shaft bearing integrally includes a first shaft bearing holding member which movably holds, by use of a resilient member, the first shaft bearing in a direction of moving the charging roller towards and apart from the charging roller cleaning roller.