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:
Jun. 17, 2008
Filed:
Dec. 21, 2005
John S. Berkes, Fairport, NY (US);
Gerald M. Fletcher, Pittsford, NY (US);
Brendan Kunzmann, Rochester, NY (US);
John S. Berkes, Fairport, NY (US);
Gerald M. Fletcher, Pittsford, NY (US);
Brendan Kunzmann, Rochester, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
The magnitude and polarity of the voltage on the fuser roll surface is controlled by either electronic charge application means or by applying charge control agents to the fuser. For negative toner, the fuser roll voltage must also be negative (and visa versa). This will repel the negative toner at the entrance to the fuser nip, prevent the toner from transferring to the fuser roll at the entrance of the fuser nip and preclude the formation of NVO and consequently prevent MOC.