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:
Feb. 06, 1990
Filed:
Jun. 19, 1989
Applicant:
Inventor:
Billy D Walcott, Rochester, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346159 ; 346155 ;
Abstract
An ion printing head is provided with a pin array coronde as an ion generation device, a corona controlling electrode and an array of modulation electrodes controlling the flow of ions to an imaging member in imagewise configuration. The pin array coronode provides an efficient and highly directable source of ions. At least part of the directability of the ions appears to be a result of the highly directionalized ion or corona wind, that tends to flow in a direction defined by the plane of the coronode. The corona wind also serves the purpose of removing corona effluents from the area adjacent the coronode that eventually cause deterioration of the head parts.