LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS, AND MANUFACTURING METHOD OF LIQUID EJECTION HEAD
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Sep 18, 2024
filing date -
Sep 18, 2024
priority date (Note) -
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Abstract
An object is to provide a liquid ejection head capable of suppressing corrosion. The liquid ejection head attachable to and detachable from a liquid ejection apparatus comprises a liquid ejection unit capable of ejecting liquid and a support member capable of supporting the liquid ejection unit. In the liquid, a predetermined component is includes. In the support member, metal is included. The surface of the support member is covered with an oxide cover layer having a thickness of 1 μm or more provided by predetermined treatment.
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