Liquid ejection head

Details Liquid ejection head Liquid ejection head

2011-08-02

2011-08-02

Nguyen, Dinh Q (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With means to vibrate or jiggle discharge

By electric transducer

C239S102100, C347S020000, C347S068000, C347S070000, C347S071000, C347S072000

Reexamination Certificate

active

07988068

ABSTRACT:
The liquid ejection head comprises: a pressure chamber which is connected to a nozzle; a diaphragm which constitutes one face of the pressure chamber; and a piezoelectric element which deforms the diaphragm for ejecting liquid inside the pressure chamber through the nozzle, wherein the liquid is ejected by driving the piezoelectric element in a temperature region in which a tendency of increase or decrease in viscosity of the liquid with respect to temperature of the liquid and a tendency of increase or decrease in a piezoelectric d constant of the piezoelectric element with respect to temperature of the piezoelectric element have a prescribed relationship.

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Japanese Office Action issued Nov. 16, 2010 in corresponding Japanese Patent Application No. 2005-187075 (with English translation).

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