Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1995-04-06
1997-12-09
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 69, 310333, B41J 2045
Patent
active
056965451
ABSTRACT:
Disclosed herein is an ink jet printer head including a substrate which includes a piezoelectric member polarized across a thickness thereof and a plate-like low-rigid member bonded to an upper surface of the piezoelectric member. The low-rigid member has a low permittivity and a rigidity lower than that of the piezoelectric member. The substrate has a plurality of grooves cut from an upper surface of the low-rigid member to a depth beyond a bonded surface between the low-rigid member and the piezoelectric member. A top plate is bonded to the upper surface of the low-rigid member so as to cover upper openings of the grooves, thereby defining a plurality of pressure chambers between the grooves and the top plate. A plurality of ink jet nozzles are provided so as to respectively communicate with the pressure chambers. A plurality of electrodes are formed on inner surfaces of the pressure chambers. A plurality of wiring patterns are formed on the upper surface of the low-rigid member and connected to the electrodes.
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Komakine Shigeo
Ochiai Kuniaki
Dickens Charlene
Fuller Benjamin R.
Kabushiki Kaisha TEC
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