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. 16, 2010
Filed:
Nov. 18, 2008
Muraishi Takaya, Kanagawa, JP;
Hiromichi Ninomiya, Kanagawa, JP;
Atsushi Sampe, Kanagwa, JP;
Yoshiyuki Kimura, Tokyo, JP;
Hiroyuki Nagashima, Kanagwa, JP;
Hiroshi Hosokawa, Kanagawa, JP;
Ken Amemiya, Tokyo, JP;
Toshio Koike, Kanagawa, JP;
Tokuya Ojimi, Kanagawa, JP;
Takaaki Tawada, Kanagawa, JP;
Takeshi Shintani, Kanagawa, JP;
Yuji Arai, Kanagawa, JP;
Takuji Yoneda, Tokyo, JP;
Masanori Kawasumi, Kanagawa, JP;
Masami Tomita, Shizuoka, JP;
Muraishi Takaya, Kanagawa, JP;
Hiromichi Ninomiya, Kanagawa, JP;
Atsushi Sampe, Kanagwa, JP;
Yoshiyuki Kimura, Tokyo, JP;
Hiroyuki Nagashima, Kanagwa, JP;
Hiroshi Hosokawa, Kanagawa, JP;
Ken Amemiya, Tokyo, JP;
Toshio Koike, Kanagawa, JP;
Tokuya Ojimi, Kanagawa, JP;
Takaaki Tawada, Kanagawa, JP;
Takeshi Shintani, Kanagawa, JP;
Yuji Arai, Kanagawa, JP;
Takuji Yoneda, Tokyo, JP;
Masanori Kawasumi, Kanagawa, JP;
Masami Tomita, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A charging device, a process cartridge, and an image forming apparatus are provided. The charging device includes a charging roller configured to charge an image carrier and a cleaning roller configured to clean the charging roller while making contact with a surface of the charging roller. The charging device further includes a bearing member including a first portion configured to rotatably support a rotational shaft of the charging roller and a second portion configured to rotatably support a rotational shaft of the cleaning roller. The charging device also includes an elastic member provided outside of the second portion of the bearing member with respect to an axial direction of the rotational shaft of the cleaning roller such that the charging roller makes contact with the image carrier when the first portion of the bearing member is pressed by the elastic member.