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. 22, 1999
Filed:
Nov. 27, 1996
Applicant:
Inventor:
Edward Wayne Weidert, Superior, CO (US);
Assignee:
Lexmark International, Inc., Lexington, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
347153 ; 399176 ;
Abstract
A primary charge roller configuration with an annular lip protruding from the roll core prevents wear of the roller edges into the photoconductive drum. The gap between the lip and the shaft created by the lip can be void or can be filled with a soft material, such as EPDM or SBR.