| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid chamber which meets a small, high-density and multi-bit ink jet head and is richly mass-producible. SOLUTION: A pressure in a pressure chamber 2 communicated with a nozzle 7 is controlled by a pressure generation means (piezoelectric element) 9 set to a part of the pressure chamber 2, whereby ink is jetted from the nozzle 7. A first member 4 has at least two opening parts 13 and 14, and the opening parts 13 and 14 are communicated with each other by a fluid resistance path 12. A second plate member 3 has a groove 12' for forming the fluid resistance path 12 connecting the two opening parts 13 and 14 in cooperation with the first plate member 4. The first and second plate members 4 and 3 are layered and joined, whereby the fluid resistance path 12 for ink to be supplied to the pressure chamber 2 from the ink feed ports 14 is formed.
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