| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jet head which can prevent an adverse effect on a liquid flow from being caused by a swollen piece of a joint layer, and a liquid jet apparatus which is equipped with the liquid jet head. SOLUTION: A pressure generating chamber unit 24, a supply-port forming substrate 9, a common liquid chamber substrate 7 and a nozzle plate 6 are formed as a layered structure; the substrate 9 is provided with a lead-in channel 13 for leading a liquid into a pressure generating chamber 4 from a common liquid chamber 2; the substrates 9 and 7 are provided with a supply channel 14 for supplying the liquid to a nozzle opening 5 from the chamber 4; and a control channel 25, which makes the liquid chamber 2 and the lead-in channel 13 communicate with each other, is formed on a surface 7a, on the side of the lead-in channel 13, of the substrate 7. By virtue of the above constitution, the control of the liquid flow of the control channel 25 reduces the quantity of the liquid flowing back into the liquid chamber 2 when the liquid is jetted, and increases the quantity of the led-in liquid when the liquid is led into the chamber 4. COPYRIGHT: (C)2006,JPO&NCIPI
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