Liquid ejection head and liquid ejection apparatus
AssigneeSeiko Epson Corporation
InventorKinya Ozawa
Life of this patent
Estimating the term…
Abstract
A recording head that is configured to eject ink containing tabular particles from nozzles includes pressure chambers, a pressure generating unit that generates pressure change in the pressure chambers, a reservoir that communicates with the pressure chambers, and an ink supply path that connects the pressure chambers and the reservoir, wherein a plurality of protrusions are formed on an inclined surface which is continuous with a wall of the pressure chambers and a wall of the ink supply paths at the boundary between the pressure chambers and the ink supply paths where a flow path cross-sectional area changes, and the plurality of protrusions project into the flow path from the wall surface.
Claims6
A liquid ejection head that is configured to eject liquid containing tabular particles comprising:
- a plurality of nozzles that eject the liquid;
- a plurality of pressure chambers that communicate with the plurality of nozzles;
- a pressure generating unit that generates pressure change in the plurality of pressure chambers;
- a common liquid chamber that communicates with the plurality of pressure chambers;
- a liquid supply path that connects the plurality of pressure chambers and the common liquid chamber;
- and
- a resistance section that resists a flow of the liquid being provided at a wall located inside of each of the plurality of pressure chambers adjacent to the liquid supply path, wherein
- the resistance section is configured with a plurality of protrusions.
Dependencies are inferred from the claim text.