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:
Mar. 05, 2002
Filed:
Nov. 17, 2000
John Roxon, Stevenage, GB;
Ian Pitts, Bassingbourn, GB;
Xerox Corporation, Stamford, CT (US);
Abstract
A fusing apparatus for xerographic printing includes a fuser roll with two parallel lamps, or heating elements, therein. Each lamp defines a relatively hot end and a relatively cold end when electrical power is applied. The two lamps are disposed so that a hot end of one lamp is adjacent to the cold end of the other lamp. At power-up, power is applied to each lamp in a stair-step fashion, in which incremental increases in applied power for each lamp are staggered in time. Also during power-up, the lamps are connected in series, but the series connection is removed for a running condition. These features contribute to desirable anti-flicker effects of the whole apparatus.