Liquid ejection device

Details Liquid ejection device Liquid ejection device

2011-06-21

2011-06-21

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07963639

ABSTRACT:
A liquid ejection device includes a liquid ejection member including a pressurized liquid chamber and a liquid ejection orifice which is in fluid communication with the pressurized liquid chamber to eject a liquid in the pressurized liquid chamber to the outside. A piezoelectric device is formed on the pressurized liquid chamber via a vibrating diaphragm. The piezoelectric device includes a lower electrode, a piezoelectric film and an upper electrode, which are disposed sequentially. The piezoelectric film is a thin-film piezoelectric material having a Curie point of 200° C. or more. The liquid ejection device further includes a heating element for heating a material, which has a melting point of not less than 150° C. and lower than the Curie point of the piezoelectric film, charged in the pressurized liquid chamber to a temperature not less than the melting point of the material.

REFERENCES:
patent: 7646138 (2010-01-01), Williams
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patent: 2003/0035031 (2003-02-01), Ito et al.
patent: 2007/0134434 (2007-06-01), Yokoyama et al.
patent: 2008/0074471 (2008-03-01), Sakashita et al.
patent: 03097566 (1991-04-01), None
patent: 2000-326506 (2000-11-01), None
patent: 2005-161341 (2005-06-01), None

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