发明名称 LIQUID TRANSPORTING APPARATUS
摘要 A liquid transporting apparatus which transports a liquid includes a channel unit having a surface which is electroconductive and a liquid channel which includes a pressure chamber; a piezoelectric actuator applying a pressure to the liquid in the pressure chamber and having a piezoelectric layer arranged to face the surface of the channel unit and to cover the pressure chamber, electrodes which are arranged in the piezoelectric layer to face the pressure chamber, and a first isolating film arranged between the piezoelectric layer and the surface of the channel unit to cover the pressure chamber; and a deterioration detecting mechanism detecting a deterioration of the first isolating film and having a second isolating film which is electroconductive and stacked on a surface, of the first isolating film, on a side of the piezoelectric layer, and which is insulated from both the electrodes and the channel unit.
申请公布号 US2009244211(A1) 申请公布日期 2009.10.01
申请号 US20090412294 申请日期 2009.03.26
申请人 BROTHER KOGYO KABUSHIKI KAISHA 发明人 MORITA YOSHITSUGU
分类号 B41J2/14;B41J2/045 主分类号 B41J2/14
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