Patent ID: 7963639
Filing Date: 2011-06-21
Classification: B41J

Abstract:
1. A liquid ejection device comprising: a liquid ejection member comprising a pressurized liquid chamber and a liquid ejection orifice, the liquid ejection orifice being in fluid communication with the pressurized liquid chamber to eject a liquid in the pressurized liquid chamber to the outside; a vibrating diaphragm; a piezoelectric device formed on the pressurized liquid chamber via the vibrating diaphragm, the piezoelectric device comprising a lower electrode, a piezoelectric film and an upper electrode disposed sequentially, the piezoelectric film being a thin-film piezoelectric material having a Curie point of 200° C. or more; and heating means for heating a material charged in the pressurized liquid chamber, the material having a melting point of not less than 150° C. and lower than the Curie point of the piezoelectric film, the heating means heating the material to a temperature not less than the melting point of the material.