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:
Jun. 21, 1994
Filed:
Apr. 23, 1993
Applicant:
Inventors:
Thomas J Behe, Webster, NY (US);
Daniel R Gilmore, III, Fairport, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118651 ; 355247 ; 355259 ; 118647 ;
Abstract
A donor roll for the conveyance of toner in a development system for an electrophotographic printer includes an outer surface of ceramic. The ceramic has a suitable conductivity to facilitate a discharge time constant thereon of less than 600 microseconds. The donor roll is used in conjunction with an electrode structure as used in scavengeless development.