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:
May. 07, 2013
Filed:
Nov. 29, 2010
Hisashi Kikuchi, Kanagawa, JP;
Kenji Sugiura, Kanagawa, JP;
Osamu Naruse, Kanagawa, JP;
Naomi Sugimoto, Kanagawa, JP;
Yoshiki Hozumi, Kanagawa, JP;
Yuu Sakakibara, Kanagawa, JP;
Hisashi Kikuchi, Kanagawa, JP;
Kenji Sugiura, Kanagawa, JP;
Osamu Naruse, Kanagawa, JP;
Naomi Sugimoto, Kanagawa, JP;
Yoshiki Hozumi, Kanagawa, JP;
Yuu Sakakibara, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A cleaning apparatus including: a normally-charged toner cleaning member that receives a voltage having a polarity reverse to a normal charging polarity of a toner and electostatically removes a toner having the normal charging polarity on a cleaning target; a reversely-charged toner cleaning member that receives a voltage having the same polarity as the normal charging polarity of a toner and electrostatically removes a toner having a polarity reverse to the normal charging polarity on the cleaning target; and a pre-cleaning member that is disposed at an upstream side of the normally-charged toner cleaning member and the reverse-charged toner cleaning member in a surface moving direction of the cleaning target, receives a voltage having a polarity reverse to the normal charging polarity of the toner, and electrostatically removes a toner having the normal charging polarity on the cleaning target, is provided.