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US 11,235,575 B2Granted
Flow path structure, liquid ejecting head, and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsIsamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
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Abstract
A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
Claims18
A liquid ejecting head comprising:
- ejection head units, wherein each ejection head unit includes a liquid storage chamber that communicates with pressure chambers respectively communicating with nozzles configured to eject liquid in a first direction and a vibrating plate configured to vibrate elastically and contact the liquid in the pressure chambers;
- liquid distributing units configured to distribute the liquid to the ejection head units;
- and
- a flow path structure including a distribution flow path for distributing the liquid to the liquid distributing units,
- wherein the liquid distributing units are arranged in a third direction orthogonal to the first direction and include a first liquid distributing unit and a second liquid distributing unit that are located at both ends regarding the third direction among the liquid distributing units,
- the distribution flow path includes a distributing portion extending in the third direction from the first liquid distributing unit to the second liquid distributing unit,
- the ejection head units respectively include a first flexible member defining a part of an inner surface of the liquid storage chamber and configured to contact the liquid in the liquid storage chamber, and
- the flow path structure includes a second flexible member defining a part of an inner surface of the distributing portion of the distribution flow path and configured to contact the liquid in the distributing portion of the distribution flow path.
5 more elements
Dependencies are inferred from the claim text.