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US 2020/0269577 A1Published application
Liquid ejecting head and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsToshiro Murayama, Shunsuke Watanabe, Yuma Fukuzawa
Life of this patent
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Abstract
The flow channel forming substrate has a partition wall which is disposed between two of the outlet flow channels adjacent to each other and which partitions the outlet flow channel.
Claims8
A liquid ejecting head comprising:
- a nozzle plate provided with a nozzle for ejecting a liquid;
- a flow channel forming substrate which is stacked on the nozzle plate and has
- a plurality of individual flow channels each including a pressure chamber communicating with the nozzle and arranged in an arrangement direction that is one of in-plane directions of the nozzle plate,
- a first common liquid chamber coupled to the plurality of individual flow channels, and
- a second common liquid chamber coupled to the plurality of individual flow channels and coupled to the first common liquid chamber via the plurality of individual flow channels;
- and
- a pressure generating element that causes a pressure change in the liquid in the pressure chamber, wherein
- in a vertical direction perpendicular to an in-plane direction of the nozzle plate, when a side of the flow channel forming substrate with respect to the nozzle plate is set as one side and a side of the nozzle plate with respect to the flow channel forming substrate is set as another side,
- each of the plurality of individual flow channels has an outlet flow channel coupled to the second common liquid chamber and extending in the in-plane direction and a coupling flow channel having a coupling port coupled to the outlet flow channel,
- the coupling flow channel extends from the one side to the other side toward the coupling port,
- the outlet flow channel has an outlet portion through which the liquid flows into the second common liquid chamber and which faces the in-plane direction,
- the second common liquid chamber has an introduction flow channel which is coupled to the outlet portion and through which the liquid flows along the in-plane direction, and
- the flow channel forming substrate has a partition wall which is disposed between two of the outlet flow channels adjacent to each other and which partitions the outlet flow channel.
10 more elements
Dependencies are inferred from the claim text.