Liquid ejection head and liquid ejection apparatus
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United States of America Patent
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Oct 7, 2014
Grant Date -
Sep 13, 2012
app pub date -
Mar 6, 2012
filing date -
Mar 7, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid ejection head includes a nozzle plate on which nozzle openings for ejecting liquid are provided, a flow path formation substrate on which pressure generation chambers communicating with the nozzle openings are provided, communicating portions in which the liquid to be supplied to the pressure generation chambers is stored, and piezoelectric elements which generate pressure change in the liquid in the pressure generation chambers. In the liquid ejection head, a thermistor is arranged on a surface of the flow path formation substrate at an opposite side to the nozzle openings and one lead wiring of the thermistor is connected to wiring layers which are formed on the surface of the flow path formation substrate in a state where one side ends of the wiring layers face to the communicating portions.
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