| 摘要 |
A head for ejecting a liquid from ejection holes, including: a first flow-passage member in which are formed (a) a liquid-supply passage, (b) branch passages connected to the liquid-supply passage, and (c) discharge passages each being connected to any of the branch passages; a second flow-passage member in which are formed (a) at least one common passage each communicating with at least one of the branch passages and (b) individual passages having respective pressure chambers, each individual passage being connected to any one of the at least one common passage and introducing the liquid to a corresponding one of the ejection holes via a corresponding one of the pressure chambers; a first filter disposed in the liquid-supply passage; second filters disposed between the branch passages and the at least one common passage: and at least one energy giving member for giving ejection energy to the liquid in each pressure chamber.
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