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    • 8. 发明授权
    • Ink jet head, ink jet apparatus, and method of and apparatus for
manufacturing the head
    • 喷墨头,喷墨装置,以及用于制造头部的方法和装置
    • US5992981A
    • 1999-11-30
    • US281006
    • 1994-07-27
    • Hiroshi SugitaniMasami KasamotoTsuyoshi OrikasaMasashi MiyagawaJun KawaiTeruo ArashimaMasaaki Izumida
    • Hiroshi SugitaniMasami KasamotoTsuyoshi OrikasaMasashi MiyagawaJun KawaiTeruo ArashimaMasaaki Izumida
    • B41J2/05B41J2/16
    • B41J2/14129B41J2/1604B41J2/1623B41J2/1626B41J2/1631B41J2/1634B41J2/1635B41J2/1637B41J2/1646B41J2002/14362
    • An ink jet head includes a heater board having a substrate on which a plurality of energy generating elements for generating energy utilized to discharge ink are provided, and a wall member joined to the heater board. The wall member has a plurality of flow passage walls which partially define flow passages, and the energy generated by the energy generating element acts through the flow passage so as to act on the ink to discharge the ink. The flow passages are fully defined when the heater board is joined to the wall member. A recessed portion provided in the heater board of the ink jet head is positioned between adjoining energy generating elements. The recessed portion has a bottom surface located at a position which is lower than a position for a heat acting surface of the heater board along which heat is transmitted to the ink. The flow passage walls of the wall member abut the heater board at the bottom surface. Consequently, any pressure wave generated by the energy generating element is not released to an adjacent flow passage, and crosstalk between the adjoining flow passages can be prevented. As a result, an ink jet head exhibiting excellent printing quality can be provided.
    • 喷墨头包括具有基板的加热器板,其上设置有用于产生用于排出墨水的能量的多个能量产生元件,以及连接到加热器板的壁构件。 壁构件具有多个部分地限定流动通道的流动通道壁,并且由能量产生元件产生的能量通过流动通道作用在墨上以排出墨。 当加热器板连接到壁构件时,流动通道完全限定。 设置在喷墨头的加热板中的凹部位于相邻的能量产生元件之间。 所述凹部具有位于比所述加热板的热作用面的位置低的位置的底面,所述加热板的热量向所述加热板发热。 壁构件的流动通道壁在底面处抵接加热板。 因此,由能量产生元件产生的任何压力波都不会释放到相邻的流动通道中,并且可以防止相邻流动通道之间的串扰。 结果,可以提供具有优良印刷质量的喷墨头。