Liquid ejection head
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United States of America Patent
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Mar 20, 2018
Grant Date -
Mar 3, 2016
app pub date -
Aug 27, 2015
filing date -
Aug 29, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid ejection head includes a liquid ejection substrate and a liquid reservoir. The liquid ejection substrate includes a plurality of liquid ejection sections. The liquid ejection sections include pressure chambers configured to hold liquid and ejection ports communicating with the pressure chambers. The pressure chambers each include a pressure unit configured to apply pressure to the liquid in each of the pressure chambers. The pressed liquid is ejected through the ejection ports. The liquid reservoir is in contact with a back of the liquid ejection substrate opposite to the ejection ports. The liquid reservoir is partitioned into at least one common liquid channel and a first common liquid chamber. The common liquid channel communicates with one of inlets and outlets of the plurality of pressure chambers. The first common liquid chamber communicates with another of the inlets and the outlets.
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