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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.:

US 9213271 B1

PDFFull Text
Date of Patent:
Dec. 15, 2015

Filed:

Nov. 14, 2014

Cleaner, and image forming apparatus using the cleaner

Applicants:

Yuuji Wada, Kanagawa, JP;

Kenji Sugiura, Kanagawa, JP;

Naohiro Kumagai, Kanagawa, JP;

Seiichi Kogure, Kanagawa, JP;

Junpei Fujita, Kanagawa, JP;

Yusuke Mitani, Kanagawa, JP;

Kazuki Yogosawa, Tokyo, JP;

Inventors:

Yuuji Wada, Kanagawa, JP;

Kenji Sugiura, Kanagawa, JP;

Naohiro Kumagai, Kanagawa, JP;

Seiichi Kogure, Kanagawa, JP;

Junpei Fujita, Kanagawa, JP;

Yusuke Mitani, Kanagawa, JP;

Kazuki Yogosawa, Tokyo, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Nguyen Ha

Int. Cl.
CPC ...
G03G 21/10 (2006.01); G03G 15/16 (2006.01); G03G 15/00 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/161 (2013.01); G03G 21/007 (2013.01); G03G 21/0047 (2013.01); G03G 15/70 (2013.01); G03G 21/0035 (2013.01); G03G 21/0076 (2013.01); G03G 2215/1661 (2013.01);
Abstract

A cleaner includes a cleaning member electrostatically removing toner on an object; a first electricity supplier supplying a first voltage (or current) with polarity opposite to that of toner to the cleaning member; a toner collecting member collecting toner from the cleaning member; and a second electricity supplier supplying a second voltage with the polarity greater than the first voltage to the toner collecting member. The first and second electricity suppliers set plural setting values of the first and second voltages smaller than the targeted values of the first and second voltages, and first and second control members of the first and second electricity suppliers output first and second control signals while changing in step-by-step manner so that first and second output members of the first and second electricity suppliers apply the first and second voltage in step-by-step manner before the first and second voltages reach the targeted voltages.

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