| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet printhead that has a pressure chamber 18. SOLUTION: Each of two or more pressure chambers is fluid connected with a common ink reservoir (12) through an ink feeding passage (32) on one hand, and fluid connected with a nozzle (29) on the other, whereas an actuator (26) installed in each pressure chamber (18) is characterized by an acoustic wave attenuator (42) anchored to control an acoustic reflection of the ink feeding passage (32) and signal sending properties so that ink drops can be discharged through a nozzle (20) in accordance with printing signals, thereby pressurizing the contained ink. COPYRIGHT: (C)2005,JPO&NCIPI
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