LIQUID JETTING HEAD AND LIQUID JETTING APPARATUS

PROBLEM TO BE SOLVED: To provide a liquid jetting head which can prevent a diaphragm from being cracked even if a piezoelectric body layer is burnt, and a liquid jetting apparatus using the liquid jetting head. SOLUTION: This liquid jetting head comprises a flow channel forming substrate 10 in which...

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Bibliographische Detailangaben
Hauptverfasser:	KISHIDA SANSEI, TAKAHASHI TOMOAKI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS SPRAYING OR ATOMISING IN GENERAL STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a liquid jetting head which can prevent a diaphragm from being cracked even if a piezoelectric body layer is burnt, and a liquid jetting apparatus using the liquid jetting head. SOLUTION: This liquid jetting head comprises a flow channel forming substrate 10 in which a pressure generating chamber 12 communicating with a nozzle opening 21 for emitting a jet of liquid droplets is formed, the diaphragm 50 which is provided on the one surface side of the flow channel forming substrate 10, and a piezoelectric element 300 which is provided on the diaphragm 50. The diaphragm 50 comprises a plurality of insulating layers 51 and 52, and ductile layers 55 which are provided among a plurality of the insulating layers 51 and 52, respectively. COPYRIGHT: (C)2008,JPO&INPIT