Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1983-12-16
1985-04-23
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
045132992
ABSTRACT:
An ink jet drop-on-demand printing system comprising an ink jet print head having an ink cavity supplied with a suitable ink. An electromechanical transducer is mounted in mechanical communication with the ink cavity, and a source of electrical signals is provided to selectively actuate the transducer to produce an ink drop of a selected size. To produce ink drops of a selected size the source of electrical signals produces one or more electrical drive signals each separated by a fixed time delay which is short with respect to the drop-on-demand drop production rate. Each electrical drive signal ejects a predetermined volume of ink and all the volumes of ink merge to form a single drop prior to the time the ink drops reach the print medium for printing.
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Lee Francis C.
Mills Ross N.
Payne Robert N.
Talke Frank E.
Hartary Joseph W.
International Business Machines - Corporation
Schmid, Jr. Otto
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