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:
Aug. 10, 1982
Filed:
Nov. 06, 1980
Robert D Houston, Marion, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A continuous drop, electrostatic deflection ink jet or liquid drop printing system is disclosed. An integrated waveguide or optical fiber drop sensor array is positioned adjacent a target to be printed on the upstream side. A test gutter is positioned on the downstream side of the target. The sensor array is normally used when a target is not in position for printing to calibrate the charging voltages for a plurality of drop streams. The object is to compose a straight or print line with segments of the line being composed by each of the plurality of drop streams. The sensor array includes two optical fiber sensors for each drop stream made up of an input fiber spaced from two output fibers called A and B fibers. Groups of the A and B fibers are terminated at common photodetectors requiring the A and B fibers to cross each other's paths. This is achieved in an integrated waveguide structure by fabricating the A fibers in one plane and the B fibers in a second plane.