| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jet head in which the optimum pulse width of a drive voltage pulse can be readily set by shortening a time period for manufacturing and reducing cost and to provide, a liquid jet device and a method for manufacturing the same. SOLUTION: This liquid jet head 210 comprises a plurality of pressurizing chambers communicating with nozzles for ejecting liquid droplets, a common liquid chamber commonly provided to the plurality of pressurizing chambers, a supply hole for supplying a liquid in the common liquid chamber to the pressurizing chambers, a flexible electrode provided to one face of each pressurizing chamber, and a discrete electrode provided opposite to the flexible electrode at a prescribed distance. By applying a drive voltage pulse across the flexible electrode and the discrete electrode, static electricity is generated in a gap therebetween, and then the flexible electrode is vibrated to generate a pressure fluctuation in the pressurizing chamber, thereby ejecting the liquid droplets from each of the nozzles. The liquid jet device has a setting section 151 in which an initial setting value Pws of the pulse width Pw of the drive pulse is set based on a residual vibration waveform of the flexible electrode by each nozzle or a group of the nozzles. COPYRIGHT: (C)2007,JPO&INPIT
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