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:
Dec. 05, 2006
Filed:
Oct. 03, 2003
Eric C. Stelter, Pittsford, NY (US);
Joseph E. Guth, Holley, NY (US);
Paul S. Gloyer, Nashville, TN (US);
George R. Walgrove, Iii, Rochester, NY (US);
Eric C. Stelter, Pittsford, NY (US);
Joseph E. Guth, Holley, NY (US);
Paul S. Gloyer, Nashville, TN (US);
George R. Walgrove, III, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An electrographic machine has a transfer station where a toner image is transferred to a receiver sheet. That sheet travels at a high speed of more than 15 inches per second and up to as high as 35 inches per second. A transfer roller has a metal core and an elastomeric sleeve with a resistivity selected to optimize transfer of toner at high speeds. The resistivity of the sleeve is selected to be high enough to support transfer of the toner but not so high as to cause the surface voltage to exceed the breakdown voltage of the dielectric material that includes the elastomeric sleeve, the receiver sheet, the toner and the photoconductor.