| 摘要 |
PURPOSE:To form the controlled printing dots on the specific position, by a method wherein a substrate 11 which constructs the inner walls of a pressure chambers and is disposed opposedly to a diaphragm 8 has a thickness of above 3a, when a diaphragm has a thickness of (a). CONSTITUTION:A diaphragm 8 has a thickness of 0.2mm which is the experimental minimum value capable of effectively transmitting strain power from electrostrictive elements 7A, 7B, etc. disposed thereon. Accordingly, a substrate 11, which constructs the inner walls of pressure chambers 3A, 3B and is opposedly positioned to the diaphragm 8, results in requiring more than 0.6mm in thickness. As a result, whether the pressure from the electrostrictive elements 7A, 7C is transmitted to the pressure chambers 3A, 3C existing adjacent to the pressure chamber 3B, there is no possibility that the inner wall of the pressure chamber 3B consisting of the substrate 11 is effected by the pressure in the pressure chambers 3A, 3C adjacent thereto through the substrate 11, thus resulting in that ink injected through nozzles 2A, 2B, etc. is turned to particles at the uniform speed. |
