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.

Date of Patent:
May. 05, 2015

Filed:

Nov. 19, 2012
Applicant:

Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;

Inventors:

Ginga Nakamura, Osaka, JP;

Susumu Murakami, Osaka, JP;

Toshiki Takiguchi, Osaka, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka-Shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 21/00 (2006.01); G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
G03G 21/0005 (2013.01); G03G 15/161 (2013.01);
Abstract

An image forming apparatus determines the amount of cleaning toner that is supplied to each of an intermediate transfer beltand a secondary transfer beltbased on the number of sheets that have been fed with the pick-up side of the sheet opposed to the intermediate transfer beltand the number of sheets that have been fed with the pick-up side of the sheet opposed to the secondary transfer beltintegrally forms on the intermediate transfer beltcleaning toner images that are supplied to each of the intermediate transfer beltand the secondary transfer beltand switches the application and the stop application of the transfer voltage for transferring the toner image from the intermediate transfer beltto the secondary transfer rollerat a timing corresponding to the determined amount of toner.


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