| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-jet head, which ensures an adequate amount of ejection even when using a highly viscous liquid, and imparts a satisfactory meniscus behavior after ejection to contribute to high speed printing. SOLUTION: The liquid-jet head includes: a pressure generating chamber 52, which is supplied with a liquid via a liquid supply path 54 and in which a nozzle orifice 56 for jetting the liquid is formed; and a piezoelectric element 11 for causing a pressure change within the pressure generating chamber 52. When an inertance and a passage resistance of the liquid supply path 54 are designated as M1 and R1, respectively, and an inertance and a passage resistance of the nozzle orifice 56 are designated as M2 and R2, respectively, relationships M2<M1 and R2>2R1 hold. COPYRIGHT: (C)2009,JPO&INPIT
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