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:
Feb. 11, 1997
Filed:
Jan. 11, 1996
Gerald A Domoto, Briarcliff Manor, NY (US);
Richard B Lewis, Williamson, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An apparatus for fusing images to a sheet. A fuser device is provided using a transparent fusing roll having an internal heating device which focuses the energy to a narrow area of the roll adjacent the nip formed with a pressure roll. A transparent fuser roll is used in a pressure nip fusing system to take advantage of the quick response of a focused lamp system while at the same time yielding the desirable image quality attributes of the pressure nip in two roll fusing. The focused lamp is completely enclosed and the heated region of the paper is within the nip contact region so there exists no possibility of igniting the paper. A lateral temperature smoothing device, or leveling roll, is also provided to maintain a fairly uniform temperature axially across the fuser roll. This is particularly useful for a wide fuser roll, i.e., 17 inches, through which narrower paper, i.e., 11 or 14 inches, is passing to prevent the ends of the fuser roll which do not contact the paper from overheating. A quick start up from cold start is possible so that no standby power is required.