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:
May. 26, 2009
Filed:
Nov. 06, 2006
John Graham, Oakville, CA;
Zoran D. Popovic, Mississauga, CA;
Johann Junginger, Toronto, CA;
Xerox Corporation, Norwalk, CT (US);
Abstract
Positive-charge injection-related ghosting of images in electrophotographic processes is addressed by electrophotographic photoreceptors that include a positive-charge injection preventing layer that includes one or more positive-charge-injection preventing compounds. In addition, processes are provided for preventing positive charge injection, in which the processes include a step of applying a positive-charge injection preventing composition to an electrophotographic photoreceptor in which the positive-charge injection preventing composition includes one or more positive-charge-injection preventing compound.