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. 23, 1983
Filed:
Nov. 13, 1980
John Shiurila, Londonderry, NH (US);
Richard A Williams, Hampstead, NH (US);
Centronics Data Computer Corp., Hudson, NH (US);
Abstract
A dot matrix impact printer for printing a plurality of colors substantially simultaneously. A print head is comprised of three spaced substantially parallel columns of print wires, each column containing an equal number of print wires. Separate independent ink supply sources are provided immediately adjacent the print head, and ink delivery means carry the ink from an associated supply source to the printing tips of the print wires in an associated column. Each of the ink supply containers contain an ink of a different color. The colors may, for example, be the three primary colors. The ink delivery means incorporate capillary means for delivering ink from the ink supply container to the printing tips by capillary action. Printing dots of different colors in either a partially or a substantially overlapping fashion enables any color to be created from the three primary colors. The ink delivery means may deliver ink to the print wires at a location inwardly from the printing tips or may deliver the ink directly to the printing tips. The technique of ink delivery may also be utilized in shuttle printers of the dot matrix type.