Liquid ejection head
AssigneeCanon Kabushiki Kaisha
InventorsKazuhiro YAMADA, Takatsugu Moriya, Zentaro Tamenaga
Life of this patent
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Abstract
A liquid ejection head includes a plurality of ejection members, each having an ejection port for ejecting liquid and a liquid chamber for supplying liquid to the ejection port, a base substrate carrying the plurality of ejection members arranged thereon, the base substrate being provided with a common flow channel for supplying liquid to the plurality of liquid chambers, and a plurality of branch ports each allowing the common flow channel to communicate with the plurality of liquid chambers. Each of the branch ports is provided with a notch portion at an upstream side thereof as viewed in the flow direction of liquid flowing through the common flow channel.
Claims17
A liquid ejection head comprising:
- a plurality of ejection members, each having an ejection port for ejecting liquid and a liquid chamber for supplying liquid to the ejection port;
- a base substrate carrying the plurality of ejection members arranged thereon, the base substrate being provided with a common flow channel for supplying liquid to the plurality of liquid chambers;
- and
- a plurality of branch ports each allowing the common flow channel to communicate with the plurality of liquid chambers, wherein
- each of the branch ports is provided with a notch portion at an upstream side thereof as viewed in the flow direction of liquid flowing through the common flow channel.
A liquid ejection head comprising:
- a plurality of ejection members, each having an ejection port for ejecting liquid and a liquid chamber for storing liquid to be supplied to the ejection port;
- and
- a support member supporting the plurality of ejection members, the support member having a common flow channel for supplying liquid to the plurality of ejection members, wherein
- the common flow channel communicates with the plurality of liquid chambers by way of respective openings, while each of the openings is provided with a notch portion at an upstream side thereof as viewed in the flow direction of liquid flowing through the common flow channel and the upstream side of each of the openings has a profile that is asymmetrical relative to a line passing through the center of gravity of the opening and extending along the flow direction.
A liquid ejection head comprising:
- a plurality of ejection members, each having an ejection port for ejecting liquid and a liquid chamber for storing liquid to be supplied to the ejection port;
- and
- a support member supporting the plurality of ejection members, the support member having a common flow channel for supplying liquid to the plurality of ejection members, wherein
- the common flow channel communicates with the plurality of liquid chambers by way of respective openings and an upstream side of each of the openings as viewed in the flow direction of liquid flowing through the common flow channel has a profile that is asymmetrical relative to a line passing through the center of gravity of the opening and extending along the flow direction.
Dependencies are inferred from the claim text.