| 摘要 |
PURPOSE: An inkjet print head is provided to differently the size and speed of droplet since the distance between the upper and lower surfaces of the pressure chamber is differently formed in the same size of inkjet head. CONSTITUTION: An inkjet print head(200) comprises a pressure chamber(224), a restrictor(246), and a stepped part(241). Ink from a reservoir flows into the pressure chamber. The pressure chamber stores the ink to discharge it to a nozzle(262). The restrictor forms the flow paths of the reservoir and the pressure chamber. The stepped part is formed in the pressure chamber and changes the flow of ink in the pressure chamber. The stepped part is formed so that the top of the stepped part gets high in the pressure chamber in the direction of the restrictor. The stepped part is formed in multi stage.
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