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:
Jun. 19, 2018

Filed:

Sep. 25, 2017
Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventor:

Katsuya Ota, Osaka, JP;

Assignee:

KYOCERA Document Solutions Inc., Tamatsukuri, Chuo-ku, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/00 (2006.01); G03G 15/00 (2006.01); G03G 15/16 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5062 (2013.01); G03G 15/0877 (2013.01); G03G 15/1695 (2013.01); G03G 21/0005 (2013.01);
Abstract

An image forming apparatus includes: an image carrier, a developing section, a transfer roller, a power supply section, a conveyance roller, and an operation control section. The operation control section has a cleaning operation mode and an image formation operation mode where images are formed on recording paper. In the cleaning operation mode, the operation control section causes the developing section to supply a predefined amount of toner to a circumferential surface of the image carrier, causes the power supply section to apply a bias of a polarity opposite to a normal charge polarity to the transfer roller, then causes the conveyance roller to convey a single piece of recording paper, causes the conveyance roller to stop rotating operation when the recording paper is located in a nip area, and causes the image carrier and the transfer roller to rotate while the recording paper is stopped in the nip area.


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