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:
Nov. 08, 2016

Filed:

Feb. 22, 2016
Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventors:

Yasuhiro Michishita, Osaka, JP;

Satoshi Uemura, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01); G03G 15/00 (2006.01); G03G 21/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/1665 (2013.01); G03G 15/80 (2013.01); G03G 21/203 (2013.01);
Abstract

In printing, a first power supply unit applies a transfer current with a polarity opposite to a charged polarity of toner to the transfer roller. A second power supply unit applies a toner scattering suppression current with a polarity opposite to the charged polarity of the toner to a stretching roller until a rear end of a sheet passes through a separation position after a front end of the sheet reaches the separation position. The first power supply unit applies a post-transfer current, which has a polarity opposite to the charged polarity of the toner and has an absolute value equal to or more than an absolute value of the toner scattering suppression current, to the transfer roller until the rear end of the sheet passes through the separation position after the rear end of the sheet passes through the nip position.


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