Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1986-04-23
1988-05-03
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
310328, 310367, G01D 1516
Patent
active
047423650
ABSTRACT:
In an ink jet print head wherein a plurality of pumping chambers are provided for receiving ink and individually discharging the ink on demand in droplet form. The pumping chambers are formed on a substrate and defined in part by a continuous film of piezoelectric material extending over the substrate. Electrodes are electrically coupled on opposite sides of the piezoelectric film and positioned to define a plurality of distinct, electrically pulsed ink droplet drive elements operatively associated individually with the plurality of pumping chambers. An orifice for each chamber causes ink to be ejected from the chamber in response to demand electrical pulsation of the drive element for the respective chamber.
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Bartky W. Scott
Michaelis A. John
AM International Inc.
Camasto Nicholas A.
Hartary Joseph W.
Hoffman John R.
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