| 摘要 |
PURPOSE: A printer header using a micro-sprayer is provided to easily control an amount of ink sprayed with precision by using the micro-sprayer and to achieve the micro-sprayer having a simple structure. CONSTITUTION: A micro-sprayer includes an internal pressure chamber(27), a liquid inlet(21), a coupling slot(23), a liquid exhaust port, and a resonator(20). The internal pressure chamber(27) is installed in the micro-sprayer. The liquid inlet(21) is installed on an upper part of the micro-sprayer. The coupling slot(23) is installed on a lower side of the micro-sprayer. Also, the coupling slot(23) is used for receiving cavity resonance frequency signals. A resonator(20) has a liquid exhaust port. The micro-sprayer includes a substrate(29) having a nozzle, and a signal applying part.
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