Solid-state ink-jet print head

Details Solid-state ink-jet print head Solid-state ink-jet print head

1993-02-01

1995-10-17

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2045

Patent

active

054595010

ABSTRACT:
An ink-jet print head comprises an ink drive unit formed on a first substrate and an ink reservoir unit formed on a second substrate. The ink drive unit includes a thin film piezoelectric transducer formed on one side of the substrate. The reservoir unit includes an etched cavity in the substrate for forming an ink reservoir, the cavity having an aperture in the base extending through the substrate to form an ink nozzle. The ink drive and ink reservoir units are bonded together with the piezoelectric transducer within the ink reservoir. Activating the transducer expels ink from the reservoir via the ink nozzle.

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Brownlow et al., "Ink on Demand Using Silicon Nozzles", IBM Tech. Disc. Bulletin; vol. 19, No. 6, Nov. 1976; pp. 2255-2256.
Holland et al., "Porous Silicon Technique for Fabricating Drop-On-Demand Ink Jet Structures", IBM Tech. Disc. Bulletin, vol. 22, No. 2, Jul. 1979, pp. 783-784.

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