Liquid ejection head and liquid ejection apparatus
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 25, 2025
Grant Date -
Jun 22, 2023
app pub date -
Dec 16, 2022
filing date -
Dec 16, 2022
priority date (Note) -
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Abstract
A liquid ejection head includes: an ejection element configured to generate a pressure for ejecting the liquid; a supply channel through which the liquid is supplied to a pressure chamber; a collection channel connected to the supply channel through the pressure chamber and through which the liquid is collected from the pressure chamber; a circulation pump capable of supplying the liquid from the supply channel into the pressure chamber, and collecting the liquid in the pressure chamber through the collection channel and sending the liquid to the supply channel; a first pressure adjustment unit disposed between an outlet channel of the circulation pump and the supply channel and configured to adjust a pressure in the supply channel; and a second pressure adjustment unit disposed between an inlet channel of the circulation pump and the collection channel and configured to adjust a pressure in the collection channel.
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