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. 01, 1994
Filed:
Mar. 23, 1993
Applicant:
Inventors:
George A Charnitski, Fairport, NY (US);
Steven C Hart, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355208 ; 355203 ; 355212 ;
Abstract
An apparatus and method for detecting the seam in a photoreceptor belt is provided. A sensor is positioned on one side of the belt in opposed relationship to a light source which can be a lamp dedicated solely to that purpose or light from an imager such as an LED array or a Raster Output Scanner. Illumination from the light source of the end of the array is detected by a sensor when the seam passes therebetween creating a characteristic output signal which is recognized by system software and used to control imager operation to ensure that latent images are not formed across the seam.