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:
Jul. 09, 2013
Filed:
Oct. 05, 2011
Akira Asaoka, Kanagawa, JP;
Takaya Muraishi, Kanagawa, JP;
Kenji Sugiura, Kanagawa, JP;
Hisashi Kikuchi, Kanagawa, JP;
Yoshiki Hozumi, Kanagawa, JP;
Yuu Sakakibara, Kanagawa, JP;
Akira Asaoka, Kanagawa, JP;
Takaya Muraishi, Kanagawa, JP;
Kenji Sugiura, Kanagawa, JP;
Hisashi Kikuchi, Kanagawa, JP;
Yoshiki Hozumi, Kanagawa, JP;
Yuu Sakakibara, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A cleaning device including a normally charged toner cleaning member provided in contact with a cleaning target at a contact position to remove normally charged toner from the cleaning target, a reversely charged toner cleaning member provided in contact with the cleaning target at a contact position upstream from the normally charged toner cleaning member to remove reversely charged toner from the cleaning target, and a pre-cleaning member provided in contact with the cleaning target at a contact position upstream from both the normally and reversely charged toner cleaning members to remove normally charged toner from the cleaning target. The contact position between the pre-cleaning member and the cleaning target has a width wider than a width of the contact position between the normally charged toner cleaning member and the cleaning target and a width of the contact position between the reversely charged toner cleaning member and the cleaning target.