Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1995-09-12
1998-05-19
Malley, Daniel P.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 2045
Patent
active
057542031
ABSTRACT:
In an ink ejection device, second grooves having a width larger than the width of first grooves which are formed in a piezoelectric ceramic plate are formed on the end surface of the piezoelectric ceramic plate. A step portion is formed at an intersection portion between each of the first groove and each of the second grooves because the width of the second groove is larger than the first grooves. By depositing a conductive material from two directions above and to one side of the piezoelectric ceramic plate, driving electrodes and non-ejection channel lead wire electrodes are formed in the first grooves and on the inner surfaces of the slits by a shadow effect of the side walls on the second grooves. Furthermore, by depositing the conductive material from two directions below and to one side of the piezoelectric ceramic plate, ejection channel lead wire electrodes, wiring patterns connected to the ejection channel lead wire electrodes and wiring patterns connected to the non-ejection channel lead wire electrodes are formed on the inner surfaces of the second grooves by the shadow effect of the side walls on the second grooves. The ejection channel lead wire electrodes and the non-ejection lead wire electrodes are formed inside the first grooves in which the driving electrodes are formed, so that these electrodes are electrically connected to the driving electrodes.
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Brother Kogyo Kabushiki Kaisha
Malley Daniel P.
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