INK-JET PRINTING HEAD AND PIEZOELECTRIC TRANSDUCER

PROBLEM TO BE SOLVED: To provide a piezoelectric transducer and an ink-jet printing head which reduce a voltage sensitivity and are easy to machine when used in designing a jet driver mechanism. SOLUTION: The ink-jet printing head defines an ink pressure chamber 22, and the ink jet pressure chamber...

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Hauptverfasser:	GREISER CHRISTINE M, OIEN LEE M, FINNIE DAVID J
Format:	Patent
Sprache:	eng
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRICITY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a piezoelectric transducer and an ink-jet printing head which reduce a voltage sensitivity and are easy to machine when used in designing a jet driver mechanism. SOLUTION: The ink-jet printing head defines an ink pressure chamber 22, and the ink jet pressure chamber 22 further defines a chamber aperture having a flexible diaphragm 30. The piezoelectric transducer 32 has an upper face, a lower face and an outer perimeter. The lower face is secured to the flexible diaphragm 30. The outer perimeter overlaps the chamber aperture by a size and at a position to overlap the chamber aperture. The overlap improves the throughput of the piezoelectric transducer 32 and reduces the voltage sensitivity.