Method for monitoring a jetting performance of a print head
    2.
    发明授权
    Method for monitoring a jetting performance of a print head 有权
    用于监测打印头的喷射性能的方法

    公开(公告)号:US08721032B2

    公开(公告)日:2014-05-13

    申请号:US13602838

    申请日:2012-09-04

    IPC分类号: B41J29/393

    摘要: The invention relates to a method for monitoring a performance of a jetting device, the jetting device being configured to expel droplets of an electrically conductive fluid wherein at least a part of the conductive fluid is positioned in a magnetic field, the method comprising providing an electrical actuation current in the part of the conductive fluid positioned in the magnetic field, thereby generating a pressure wave in the conductive fluid; characterized in that the method further comprises detecting a resulting electrical current, which electrical current is induced by a residual pressure wave in the part of the conductive fluid positioned in the magnetic field, thereby obtaining a detection signal and based on the detection signal determining whether the jetting device is in an operative state. The invention further relates to a printing device, employing the described method.

    摘要翻译: 本发明涉及一种用于监测喷射装置的性能的方法,该喷射装置被配置为排出导电流体的液滴,其中至少一部分导电流体位于磁场中,该方法包括提供电气 位于磁场中的导电流体的一部分中的致动电流,从而在导电流体中产生压力波; 其特征在于,所述方法还包括检测所产生的电流,所述电流由位于磁场中的导电流体的部分中的残余压力波引起,由此获得检测信号,并且基于检测信号, 喷射装置处于操作状态。 本发明还涉及一种采用所述方法的打印装置。

    METHOD FOR MONITORING A JETTING PERFORMANCE OF A PRINT HEAD
    3.
    发明申请
    METHOD FOR MONITORING A JETTING PERFORMANCE OF A PRINT HEAD 有权
    用于监测打印头的喷射性能的方法

    公开(公告)号:US20130021404A1

    公开(公告)日:2013-01-24

    申请号:US13602838

    申请日:2012-09-04

    IPC分类号: B41J29/393

    摘要: The invention relates to a method for monitoring a performance of a jetting device, the jetting device being configured to expel droplets of an electrically conductive fluid wherein at least a part of the conductive fluid is positioned in a magnetic field, the method comprising providing an electrical actuation current in the part of the conductive fluid positioned in the magnetic field, thereby generating a pressure wave in the conductive fluid; characterized in that the method further comprises detecting a resulting electrical current, which electrical current is induced by a residual pressure wave in the part of the conductive fluid positioned in the magnetic field, thereby obtaining a detection signal and based on the detection signal determining whether the jetting device is in an operative state. The invention further relates to a printing device, employing the described method.

    摘要翻译: 本发明涉及一种用于监测喷射装置的性能的方法,该喷射装置被配置为排出导电流体的液滴,其中至少一部分导电流体位于磁场中,该方法包括提供电气 位于磁场中的导电流体的一部分中的致动电流,从而在导电流体中产生压力波; 其特征在于,所述方法还包括检测所产生的电流,所述电流由位于磁场中的导电流体的部分中的残余压力波引起,由此获得检测信号,并且基于检测信号, 喷射装置处于操作状态。 本发明还涉及一种采用所述方法的打印装置。

    Orifice plate for an ink-jet print-head and a method for manufacturing the orifice plate
    5.
    发明授权
    Orifice plate for an ink-jet print-head and a method for manufacturing the orifice plate 有权
    用于喷墨印刷头的孔板和用于制造孔板的方法

    公开(公告)号:US08033645B2

    公开(公告)日:2011-10-11

    申请号:US12341260

    申请日:2008-12-22

    IPC分类号: B41J2/14

    摘要: An orifice plate for an ink jet print-head for ejecting drops of an ink, wherein the orifice plate includes an outer surface, which has a wettability with the ink, and at least one orifice arranged in the outer surface, said orifice being configured for ejecting ink drops, each orifice having an edge, the edge defining a transition boundary between the orifice and the outer surface, wherein the wettability of the outer surface is poor near the edge of the at least one orifice and the wettability increases with increasing distance from the edge of the orifice, the increasing wettability with the increasing distance from the edge of the orifice providing a driving force for moving residual ink drops away from the edge towards a wettable region, thereby reducing the risk of disturbing the trajectories of subsequent ejected ink drops.

    摘要翻译: 一种用于喷墨打印头的孔板,其中所述孔板包括具有与所述油墨润湿性的外表面和布置在所述外表面中的至少一个孔口,所述孔口被配置用于 喷射墨滴,每个孔具有边缘,边缘限定孔和外表面之间的过渡边界,其中外表面的润湿性在至少一个孔的边缘附近是差的,并且润湿性随着距离 孔口的边缘,随着与孔口边缘距离的增加的增加的润湿性提供了用于将残留墨滴从边缘朝向可润湿区域移动的驱动力,从而降低了干扰随后喷射的墨滴的轨迹的风险 。

    ORIFICE PLATE FOR AN INK-JET PRINT-HEAD AND A METHOD FOR MANUFACTURING THE ORIFICE PLATE
    6.
    发明申请
    ORIFICE PLATE FOR AN INK-JET PRINT-HEAD AND A METHOD FOR MANUFACTURING THE ORIFICE PLATE 有权
    喷墨打印头的定位板和制造条纹板的方法

    公开(公告)号:US20090237453A1

    公开(公告)日:2009-09-24

    申请号:US12341260

    申请日:2008-12-22

    IPC分类号: B41J2/135

    摘要: An orifice plate for an ink jet print-head for ejecting drops of an ink, wherein the orifice plate includes an outer surface, which has a wettability with the ink, and at least one orifice arranged in the outer surface, said orifice being configured for ejecting ink drops, each orifice having an edge, the edge defining a transition boundary between the orifice and the outer surface, wherein the wettability of the outer surface is poor near the edge of the at least one orifice and the wettability increases with increasing distance from the edge of the orifice, the increasing wettability with the increasing distance from the edge of the orifice providing a driving force for moving residual ink drops away from the edge towards a wettable region, thereby reducing the risk of disturbing the trajectories of subsequent ejected ink drops.

    摘要翻译: 一种用于喷墨打印头的孔板,其中所述孔板包括具有与所述油墨润湿性的外表面和布置在所述外表面中的至少一个孔口,所述孔口被配置用于 喷射墨滴,每个孔具有边缘,边缘限定孔和外表面之间的过渡边界,其中外表面的润湿性在至少一个孔的边缘附近是差的,并且润湿性随着距离 孔口的边缘,随着与孔口边缘距离的增加的增加的润湿性提供了用于将残留墨滴从边缘朝向可润湿区域移动的驱动力,从而降低了干扰随后喷射的墨滴的轨迹的风险 。