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:
Mar. 03, 1981
Filed:
Jun. 04, 1979
Dolf Landheer, Toronto, CA;
Shy-Shung Hwang, Penfield, NY (US);
Charles Nesta, Rochester, NY (US);
Gino F Squassoni, Pittsford, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
The present disclosure is directed to electrostatic recording devices wherein a latent electrostatic image is recorded on a dielectric coated sheet by a stylus array spaced apart from the sheet to form an ionization gap. There is now taught a means to accurately establish the distance between the recording stylus and the dielectric surface upon which the latent image is created. A dielectric sheet containing a conductive layer is passed over a fixed recording head containing an array of styli. The fixed recording head is provided with a source of fliuid which maintains positive pressure in a cavity with the recording head, which cavity has outlets facing the dielectric sheet passing over the head. The length of the gap between the dielectric sheet and the recording head is maintained by the fluid pressure emanating from the head.