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:
Jun. 02, 2009
Filed:
Sep. 13, 2006
Shuji Tanaka, Chigasaki, JP;
Shinichi Kawahara, Setagaya-ku, JP;
Yoshiyuki Kimura, Meguro-ku, JP;
Hiroshi Hosokawa, Yokohama, JP;
Yoshio Hattori, Kawasaki, JP;
Takeo Suda, Katsushika-ku, JP;
Yutaka Takahashi, Setagaya-ku, JP;
Takatsugu Fujishiro, Taito-ku, JP;
Teruyuki Kasuga, Atsugi, JP;
Hiroomi Harada, Kawasaki, JP;
Tokuya Ojimi, Kawasaki, JP;
Masato Yanagida, Meguro-ku, JP;
Takaaki Tawada, Yokohama, JP;
Takeshi Tabuchi, Sagamihara, JP;
Naohiro Kumagai, Machida, JP;
Chohtaroh Kataoka, Kawasaki, JP;
Hidemasa Sato, Sendai, JP;
Shuji Tanaka, Chigasaki, JP;
Shinichi Kawahara, Setagaya-ku, JP;
Yoshiyuki Kimura, Meguro-ku, JP;
Hiroshi Hosokawa, Yokohama, JP;
Yoshio Hattori, Kawasaki, JP;
Takeo Suda, Katsushika-ku, JP;
Yutaka Takahashi, Setagaya-ku, JP;
Takatsugu Fujishiro, Taito-ku, JP;
Teruyuki Kasuga, Atsugi, JP;
Hiroomi Harada, Kawasaki, JP;
Tokuya Ojimi, Kawasaki, JP;
Masato Yanagida, Meguro-ku, JP;
Takaaki Tawada, Yokohama, JP;
Takeshi Tabuchi, Sagamihara, JP;
Naohiro Kumagai, Machida, JP;
Chohtaroh Kataoka, Kawasaki, JP;
Hidemasa Sato, Sendai, JP;
Ricoh Company Limited, Tokyo, JP;
Abstract
A process cartridge including an image bearing member; a lubricant applicator, which includes a lubricant application member configured to apply a solid lubricant to the surface of the image bearing member; and a smoothing member configured to smooth the applied solid lubricant, and at least one of a charging device, a developing device and a cleaning device, wherein the amount of the solid lubricant present on a portion of surface of the image bearing member, which is located between the lubricant application member and the smoothing blade, is from 0.11 to 1.2 mg/m. The smoothing member is preferably a blade having a JIS-A hardness of not less than 79°. The process cartridge is preferably assembled by a method including setting the lubricant smoothing member, the lubricant and the lubricant application member to a housing of the process cartridge; and then setting the image bearing member to the housing.