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:
May. 18, 1982
Filed:
Mar. 04, 1980
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; B01D / ; C25D / ; G03G / ;
U.S. Cl.
CPC ...
346157 ; 430 35 ; 430 36 ; 2042 / ; 2043 / ; 355 / ;
Abstract
The invention relates to a printing device for electrophoretic recording by means of electrodes which are relatively movable with respect to an image carrier. Between the image carrier and electrodes, a liquid developer fluid is present in which the electrodes are immersed. Recording takes place under the influence of a control voltage (U.sub.ST) causing adherence of electrophoretic pigment to the image carrier. In order to enable point-like (matrix-like) recording, the surface of the image carrier is electrically conductive and the developer fluid at the area of the electrodes is continuously exchanged to maintain the electrophoretic pigment supply.