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US 12,623,461 B2Granted
Liquid ejection head and liquid ejection apparatus
AssigneeCanon Kabushiki Kaisha
InventorsNaoko Shimizu, Yoshiyuki Nakagawa
Life of this patent
Estimating the term…
Abstract
A liquid ejection head and a liquid ejection apparatus can join the ejection member to the ejection member joining surface with a sufficient joining area, and suppress a decrease in joining reliability. To this end, second supply ports are provided in side portions of an ejection member.
Claims21
A liquid ejection head comprising:
- an ejection element plate on which an ejection element is arranged, the ejection element configured to generate energy for ejecting liquid;
- an ejection port formation member that is stacked on the ejection element plate and that is provided with an individual liquid chamber and an ejection port corresponding to the ejection element;
- and
- a first common flow passage that is capable of supplying the liquid to the individual liquid chamber via a first supply port penetrating the ejection element plate and that includes three surfaces which are a first surface on which the first supply port of the ejection element plate is opened, a second surface opposite to the first surface, and a third surface connecting the first surface and the second surface, wherein
- a second supply port that is capable of supplying the liquid to the first common flow passage in a first direction and that is opened opposite the third surface is arranged in the first common flow passage, the first direction intersecting an ejection direction in which the liquid is ejected from the ejection port.
2 more elements
A liquid ejection apparatus in which a liquid ejection head is configured to be mounted, the liquid ejection head comprising:
- an ejection element plate on which an ejection element is arranged, the ejection element configured to generate energy for ejecting liquid;
- an ejection port formation member that is stacked on the ejection element plate and that is provided with an individual liquid chamber and an ejection port corresponding to the ejection element;
- and
- a first common flow passage that is capable of supplying the liquid to the individual liquid chamber via a first supply port penetrating the ejection element plate and that includes three surfaces which are a first surface on which the first supply port of the ejection element plate is opened, a second surface opposite to the first surface, and a third surface connecting the first surface and the second surface, wherein
- a second supply port that is capable of supplying the liquid to the first common flow passage in a first direction and that is opened opposite the third surface is arranged in the first common flow passage, the first direction intersecting an ejection direction in which the liquid is ejected from the ejection port.
2 more elements
Dependencies are inferred from the claim text.