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. 08, 1976
Filed:
Dec. 26, 1974
Applicant:
Inventors:
Edward F Mayer, Acton, MA (US);
Robert A Moore, Nashua, NH (US);
Assignee:
Itek Corporation, Lexington, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
96-14 ; 427 24 ;
Abstract
An electrophotographic method is disclosed which produces multiple electrophotograhic copies from the same electrostatic image by multiply cycling the electrostatic image through development and transfer steps. To reduce copy density losses in subsequent copies, the biasing potential applied across the development zone is reduced on subsequent cycles of the electrostatic image through the development zone.