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:
Oct. 01, 1985
Filed:
May. 21, 1984
Suresh C Paranjpe, Dayton, OH (US);
The Mead Corporation, Dayton, OH (US);
Abstract
An ink jet printer transporting a print receiving medium angularly past a print head which generates a row of jet drop streams. Drops in the streams are selectively charged to either a print charge level or a catch charge level, and are subsequentlysubjected to a cyclically varying electric deflection field, normal to the row, which deflects of the drops carrying the print charge level into selected print trajectories. A static electric deflection field then separates the drops into print and catch trajectories, with the drops in the catch trajectories being intercepted by a catcher and thereby prevented from striking the print receiving medium. Drops from each jet drop stream may be deflected in a direction perpendicular to the row by the secondary field so as to be deposited at a number of positions on the print receiving medium.