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:
Jul. 24, 1984
Filed:
Oct. 22, 1982
Applicant:
Inventor:
Kenneth C Favata, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 / ; 118621 ; 430 48 ;
Abstract
An apparatus in which contaminants transferred from a copy sheet to a photoconductive member are attracted back to the copy sheet. During the transfer of the toner powder image from the photoconductive member to the copy sheet, the copy sheet contaminants are attracted to the photoconductive member. Simultaneously with this transfer process, the copy sheet contaminants have their polarity charged to the same polarity as the polarity of the charge on the toner powder image. In this way, the contaminants are attracted back to the copy sheet from the photoconductive member preventing contamination thereof.