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. 21, 2003
Filed:
Feb. 01, 2002
Applicant:
Inventors:
Krzysztof J. Less, London, GB;
Ian Pitts, Cambs, GB;
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/516 ;
U.S. Cl.
CPC ...
G03G 1/516 ;
Abstract
In a xerographic printing apparatus, during the transfer step wherein marking material is electrostatically transferred from the photoreceptor to the print sheet by a transfer corotron and the sheet is then detached from the photoreceptor by a detack corotron, the bias associated with the transfer corotron is maintained at a constant value while the bias associated with the detack corotron is progressively decreased to approximately zero as the print sheet moves through the transfer zone.