Flow path structure, liquid ejecting head, and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsIsamu TOGASHI, Hiroaki OKUI, Yasuyuki KUDO, Fujio AKAHANE
Life of this patent
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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.
Claims17
A liquid ejecting head comprising:
- nozzles configured to eject liquid in a first direction;
- a first flow channel including a first channel and a second channel communicating with the first channel;
- and
- a second flow channel including a third channel and a fourth channel communicating with the third channel, wherein:
- the second channel extends in a second direction orthogonal to the first direction,
- the fourth channel extends in the second direction,
- the first channel extends in a direction intersecting the second direction,
- the third channel extends in a direction intersecting the second direction,
- a first intersecting portion where the first channel and the second channel intersect is located between both ends of the second channel, and
- a second intersecting portion where the third channel and the fourth channel intersect is located at an end of the fourth channel.
A liquid ejecting head according to claim 7, wherein
- the second channel is located in the first direction with respect to the fourth channel.
A liquid ejecting head comprising:
- a first flow channel substrate;
- a second flow channel substrate;
- a third flow channel substrate, wherein the second flow channel substrate is positioned between the first and second flow channel substrates such that the first, second, and third channel substrates are stacked in a first direction;
- wherein:
- the first, second and third channel substrates are configured to form a first flow channel and a second flow channel;
- the first flow channel includes a first channel and a second channel;
- the second flow channel includes a third channel and a second channel;
- wherein:
- the first channel is formed in the first flow channel substrate and the second channel is formed in the second flow channel substrate and communicates with the first channel
- the third channel is formed in the first flow channel substrate and the fourth channel is formed in the third flow channel substrate and communicates with the second channel,
- wherein a part of the first flow channel and a part of the second flow channel overlap when viewed in the first direction.
Dependencies are inferred from the claim text.