| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jetting head which prevents a swelled piece of a joining layer from adversely affecting liquid flow and to provide a liquid jetting device provided with the head. SOLUTION: A pressure generating chamber unit 24, a supply opening forming substrate 9, a common liquid chamber forming substrate 7, and a nozzle plate 6, are formed as a layered structure. An introducing channel 13 which introduces liquid from a common liquid chamber 2 to a pressure generation chamber 4 is provided in the supply opening forming substrate 9. In the supply opening forming substrate 9 and the common liquid chamber forming substrate 7, a supply channel 14 which supplies liquid from the pressure generation chamber 4 to a nozzle opening 5, is provided. In an introducing channel 13-side surface 7a of the common liquid chamber forming substrate 7, a control channel 25 communicating with the common liquid chamber 2 and the introducing channel 13 is formed. By virtue of the configuration described above, the amount of the liquid which reversely flows to the common liquid chamber 2 at liquid jetting is reduced by controlling the liquid flow of a control channel 25. At introduction of the liquid to the pressure generation chamber 4, the amount of the introduced liquid is increased. COPYRIGHT: (C)2011,JPO&INPIT
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