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:
Jan. 30, 1990
Filed:
Apr. 08, 1988
Applicant:
Inventor:
Robert S Karz, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355288 ; 219216 ;
Abstract
A heated fuser roll and control for fixing toner images to copy substrates. A light chopper adapted for rotation with the heated fuser roll generates signals which actuate a switch operably coupling a power source and a lamp for heating the fuser roll. The lamp is energized at maximum power at a duty cycle of 10% which provides for a fail-safe arrangement in the event the switch coupling the power source and the lamp short circuits which would result in overloading the lamp.