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:
Sep. 18, 2009
David William Hullman, Lexington, KY (US);
Brandon Alden Kemp, Lexington, KY (US);
Niko Jay Murrell, Lexington, KY (US);
Ryan James Nelson, Versailles, KY (US);
Julie Ann Gordon Whitney, Georgetown, KY (US);
David William Hullman, Lexington, KY (US);
Brandon Alden Kemp, Lexington, KY (US);
Niko Jay Murrell, Lexington, KY (US);
Ryan James Nelson, Versailles, KY (US);
Julie Ann Gordon Whitney, Georgetown, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A transfer station for toner transfer in an electrophotographic imaging device includes an endless transfer belt transported about an endless path through the imaging device, a transfer roll adjacent one surface of the transfer belt, and a backup roll adjacent an opposite surface of the transfer belt opposite from the transfer roll such that the transfer roll and backup roll form a transfer nip effecting transfer of toner. For the purpose of improved overtransfer performance, an outer layer of a thin polymer coating is applied to at least one of the transfer belt and the rolls so as to be located within the transfer nip with transfer of toner. The polymer layer has a thickness from about 5 μm to about 200 μm, surface resistivity from about 1E08 to about 1E12 Ohm/cm and breakdown strength greater than 500 V.