LIQUID EJECTION HEAD

摘要

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.

主权项

1. A liquid ejection head comprising:
a liquid ejection substrate including a plurality of liquid ejection sections including pressure chambers configured to hold liquid and ejection ports communicating with the pressure chambers, the pressure chambers each including a pressure unit configured to apply pressure to the liquid in each of the pressure chambers, the pressed liquid being ejected through each of the ejection ports; and a liquid reservoir on a back of the liquid ejection substrate opposite to a side on which the ejection ports are provided, wherein the liquid reservoir is partitioned into at least one common liquid channel and a first common liquid chamber, the common liquid channel communicating with one of inlets and outlets of the plurality of pressure chambers, and the first common liquid chamber communicating with another of the inlets and the outlets.