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    Ink jet head containing a carbon member
    2.
    发明授权
    Ink jet head containing a carbon member 失效
    含有碳素的喷墨头

    公开(公告)号：US06682181B1

    公开(公告)日：2004-01-27

    申请号：US08406297

    申请日：1995-03-17

    申请人： Edward R. Moynihan ,  David W. Gailus ,  Robert G. Palifka ,  Paul A. Hoisington ,  Nathan P. Hine ,  David Adams-Brady ,  Melvin L. Biggs ,  Marlene M. McDonald ,  Steven H. Barss ,  Diane Mackay ,  Bruce A. Paulson ,  Stephen C. Mackay

    发明人： Edward R. Moynihan ,  David W. Gailus ,  Robert G. Palifka ,  Paul A. Hoisington ,  Nathan P. Hine ,  David Adams-Brady ,  Melvin L. Biggs ,  Marlene M. McDonald ,  Steven H. Barss ,  Diane Mackay ,  Bruce A. Paulson ,  Stephen C. Mackay

    IPC分类号： B41J2045

    CPC分类号： B41J2/1614 ,  B41J2/14201 ,  B41J2/14282 ,  B41J2/155 ,  B41J2/162 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1642 ,  B41J2/17563 ,  B41J2/19 ,  B41J2002/14362 ,  B41J2002/14379 ,  B41J2002/14387 ,  B41J2202/12 ,  B41J2202/19 ,  H01L41/257 ,  Y10T29/49401

    摘要： In the embodiments of the simplified ink jet head described in the specification, a carbon body is formed with ink passages, such as internal passages extending through a carbon plate, pressure chambers on one side of a carbon plate, flow-through passages on the other side of the same plate and ink supply passages, and a piezoelectric plate is affixed to the pressure chamber side of the carbon plate by a thin layer of epoxy adhesive. The piezoelectric plate may have a conductive coating on one side which is photo-etched to produce an electrode pattern corresponding to the pattern of the pressure chambers in the carbon plate. An orifice plate may have specially profiled orifice openings to assure axial projection of drops and may be affixed by a thin layer of epoxy adhesive to a carbon plate having orifice passages supplying ink from the pressure chambers to the orifices. Since the carbon plate is conductive, it can be used, if desired, as an electrode on the opposite side of the piezoelectric plate and, to assure grounding of the piezoelectric plate, a conductive epoxy adhesive may be used to bond the piezoelectric plate to the carbon plate. Moreover, since the carbon plate is porous, it can provide a communication path between a vacuum source and an air-permeable, ink-impermeable layer on the ink passages to remove dissolved air from the ink in the passages. In one alternative embodiment, an ink jet head assembly contains two separate carbon pressure chamber plates, a carbon manifold plate and a carbon collar to retain the carbon plates in an assembly.

    摘要翻译： 在本说明书中描述的简化喷墨头的实施例中，碳体形成有油墨通道，例如延伸穿过碳板的内部通道，碳板一侧的压力室，另一侧的流通通道 同一板和供墨通道的一侧，并且压电板通过环氧树脂粘合剂的薄层固定在碳板的压力室侧。 压电板可以在一侧上具有导电涂层，其被光蚀刻以产生对应于碳板中的压力室的图案的电极图案。 孔板可以具有特别成型的孔口，以确保液滴的轴向投影，并且可以通过环氧树脂粘合剂的薄层粘附到具有从压力室向孔口供应墨水的孔口的碳板。 由于碳板是导电的，因此如果需要，可以将其用作压电板的相对侧上的电极，并且为了确保压电板的接地，可以使用导电环氧树脂粘合剂将压电板粘合到 碳板。 此外，由于碳板是多孔的，所以可以在墨水通道之间提供真空源和透气性不透墨层之间的连通路径，以从通道中的油墨中除去溶解的空气。 在一个替代实施例中，喷墨头组件包含两个单独的碳压力室板，碳歧管板和碳圈，以将碳板保持在组件中。