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. 16, 1987
Filed:
Oct. 04, 1985
Applicant:
Inventor:
Derek J Milton, Welwyn Garden City, GB;
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 250325 ; 355 / ;
Abstract
The transfer station of an electrostatographic apparatus includes a transfer corotron which assists the transfer of a developed image to a copy sheet. The shield of the transfer corotron is allowed to self-bias to a potential controlled by a Zener diode, and this potential is applied to a sheet guide member. Copy paper sheets are fed over a sheet guiding portion of the guide member towards the photoconductor drum, and while the sheets are in contact with the guide member they acquire the potential which is predetermined to ensure optimum transfer conditions.