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:
Feb. 24, 2009
Filed:
Aug. 27, 2004
Applicants:
Chohtaroh Kataoka, Tokyo, JP;
Shinichi Kawahara, Tokyo, JP;
Takeo Suda, Tokyo, JP;
Takaaki Tawada, Kanagawa, JP;
Inventors:
Chohtaroh Kataoka, Tokyo, JP;
Shinichi Kawahara, Tokyo, JP;
Takeo Suda, Tokyo, JP;
Takaaki Tawada, Kanagawa, JP;
Assignee:
Ricoh Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lubricant applying unit includes application mechanism that applies a lubricant from a solid lubricant on a surface of an image carrier that carries an image. The lubricant is a silicon-based-powder or a silicon-based-granule. Since the lubricant is less likely to adhere on a charging member that comes in contact with the image carrier, insufficient charge in the charging roller can be prevented, and a lifetime of the charging roller increases.