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:
Apr. 28, 2009
Filed:
Aug. 17, 2006
Michael J. Linder, Walworth, NY (US);
Wayne C. Powley, Ontario, NY (US);
Matthew R. Mclaughlin, Rochester, NY (US);
Michael J. Linder, Walworth, NY (US);
Wayne C. Powley, Ontario, NY (US);
Matthew R. McLaughlin, Rochester, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
An adjustable force driving nip assembly for use in a sheet transport system of a document creating apparatus has a plurality of adjustable force driving nips aligned and spaced transversely across the sheet travelling path of the sheet transport system. Each driving nip has a spring biased idler roller mounted on a cam follower and mated with a driven roller. The spring bias produces a normal force for the idler roller that urges the idler roller against the driven roller. A stepper motor is adapted to interact concurrently with the cam followers and, upon actuation, vary the force of the spring thus adjusting the normal force of the idler rollers. A controller actuates the stepper motor in response to sheet media data entered into a control panel of the document creating apparatus by an end user, thereby automatically adjusting the normal force of the idler rollers to prevent sheet marking.