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:
Dec. 28, 1976
Filed:
Dec. 09, 1974
Applicant:
Inventors:
John Maksymiak, Pennfield, NY (US);
Lawrence M Hart, Ontario, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ;
Abstract
In touchdown-type development systems used in xerographic apparatus, an arrangement produces ambipolar development of the latent image. The arrangement utilizes only changes in electric potential in various portions of the development process to effect a polarity change from positive-to-positive (direct) development to reversal development and vice versa.