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. 05, 2005
Filed:
Jun. 05, 2003
Robert G. Pirwitz, Pittsford, NY (US);
Robert S. Pawlik, Webster, NY (US);
Robert R. Tuchrelo, Williamson, NY (US);
Thomas C. Fowler, Rochester, NY (US);
Robert G. Pirwitz, Pittsford, NY (US);
Robert S. Pawlik, Webster, NY (US);
Robert R. Tuchrelo, Williamson, NY (US);
Thomas C. Fowler, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A fuser for an electrophotographic printer or copier has a fuser roll and pressure roll that form a nip through which a recording paper having a toner image is passed to fuse the toner image thereon. The fuser includes a cleaning web system to clean the fuser roll having a web supply roll, a tension roll to press the web against the fuser roll, and a web take up roll. To prevent spooling of the web from the supply roll during a paper jam clearance while the pressure roll is in contact with the fuser roll, a torsion spring is mounted on the tension roll shaft. The torsion spring provides enough torsional force on the tension roll to prevent rotation thereof during a jam clearance, thus preventing web spooling. During normal operation, the take up roll intermittently overcomes the torsion spring to step the web thereon.