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7 条记录 (耗时 0.036 秒)

    High slope AC charging device having groups of wires
    4.
    发明授权
    High slope AC charging device having groups of wires 失效
    高斜率交流充电装置具有电线组

    公开(公告)号：US5539501A

    公开(公告)日：1996-07-23

    申请号：US504982

    申请日：1995-07-20

    申请人： Zhao-Zhi Yu ,  James R. Beachner

    发明人： Zhao-Zhi Yu ,  James R. Beachner

    IPC分类号： G03G15/02 ,  H01T19/00

    CPC分类号： G03G15/0291 ,  H01T19/00

    摘要： Corona generating devices, and printing machines which use such devices, which include a shell, a plurality of corona wires within the shell, and a power source which outputs first and second alternating voltages which are out-of-phase with each other. The plurality of corona wires are interconnected so as to form two groups of wires. The wires in the first group are operatively connected to the first alternating voltage and the wires in the second group are operatively connected to the second alternating voltage. The corona wires are located within the shell such that wires of the first group are adjacent wires of the second group, and such that wires of the second group are adjacent wires of the first group. The corona generating device beneficially includes a metallic screen which acts as a grid and which controls the corona flow from the corona generating device.

    摘要翻译： 电晕发生装置和使用这种装置的印刷机，其包括壳体，壳体内的多个电晕丝，以及输出彼此不同相的第一和第二交变电压的电源。 多个电晕丝相互连接以形成两组电线。 第一组中的电线可操作地连接到第一交流电压，并且第二组中的电线可操作地连接到第二交流电压。 电晕线位于壳体内，使得第一组的导线是第二组的相邻导线，并且使得第二组的导线是第一组的相邻导线。 电晕发生装置有利地包括作为栅格的金属屏幕，并且控制来自电晕发生装置的电晕流。

    Biasable member having low surface energy
    5.
    发明授权
    Biasable member having low surface energy 失效
    具有低表面能的可偏压构件

    公开(公告)号：US5303014A

    公开(公告)日：1994-04-12

    申请号：US979683

    申请日：1992-11-20

    申请人： Zhao-Zhi Yu ,  Daniel E. Kuhman

    发明人： Zhao-Zhi Yu ,  Daniel E. Kuhman

    IPC分类号： G03G15/16 ,  G03G15/14

    CPC分类号： G03G15/1685

    摘要： A bias transfer member including a peripheral surface having low surface energy is disclosed. The low surface energy provides improved cleanability for enhancing the electrostatographic process and increasing the life of the bias transfer member. A low surface energy layer is provided by plasma fluorination to chemically modify the makeup of the surface material or by coating to form a low surface energy layer on the bias transfer member.

    摘要翻译： 公开了一种包括具有低表面能的周边表面的偏置传递构件。 低表面能提供改进的可清洁性，用于增强静电放电过程并增加偏压传送部件的使用寿命。 通过等离子体氟化提供低表面能层以化学改变表面材料的组成或通过涂覆在偏压传递构件上形成低表面能层。

    Nozzle capping device for an ink jet printhead
    6.
    发明授权
    Nozzle capping device for an ink jet printhead 失效
    用于喷墨打印头的喷嘴封盖装置

    公开(公告)号：US5117244A

    公开(公告)日：1992-05-26

    申请号：US764299

    申请日：1991-09-23

    申请人： Zhao-Zhi Yu

    发明人： Zhao-Zhi Yu

    IPC分类号： B41J2/165

    CPC分类号： B41J2/16508

    摘要： A device to cap a thermal ink jet printhead, without the need of moving the printhead or the paper transport is described. The capping device has a resilient gasket which contains magnetic material and is attached to the printhead by a relatively thin flexible boot or sleeve. A steel bar is disposed in sliding contact beneath a paper transport belt. The belt is adjacently spaced parallel to the printhead. The paper transport belt is flat and smooth and has a hole-free surface. During operation of the printer, an electromagnet disposed on the printhead is energized and attracts the magnetic gasket, resulting in the attraction of the gasket above the printhead nozzles to enable printing. When the printhead is not in operation, the electromagnet is de-energized, allowing the steel bar to attract the magnetic gasket and seal the gasket to the belt, capping the printhead. The capping device eliminates the need for movement of the printhead or moving the paper transport. Also, the capping device provides capping protection in case of a power failure.

    摘要翻译： 描述了不需要移动打印头或纸张传送装置来盖住热喷墨打印头的装置。 封盖装置具有弹性垫圈，其包含磁性材料，并通过相对薄的柔性靴或套筒附接到打印头。 钢条在纸张传送带下方滑动接触。 带平行于打印头相邻地间隔开。 纸张传送带平整光滑，具有无孔表面。 在打印机的操作期间，设置在打印头上的电磁体被激励并吸引磁性垫圈，导致打印头喷嘴上方的垫圈的吸引力使得能够打印。 当打印头不工作时，电磁铁被断电，允许钢筋吸引磁性垫片并将垫圈密封到皮带上，从而盖住打印头。 封盖装置不需要打印头的移动或移动纸张传送。 此外，封盖装置在断电的情况下提供封盖保护。

    Thermal ink jet channel with non-wetting walls and a step structure
    7.
    发明授权
    Thermal ink jet channel with non-wetting walls and a step structure 失效
    热喷墨通道具有非润湿壁和阶梯结构

    公开(公告)号：US5119116A

    公开(公告)日：1992-06-02

    申请号：US560845

    申请日：1990-07-31

    申请人： Zhao-Zhi Yu

    发明人： Zhao-Zhi Yu

    IPC分类号： B41J2/05 ,  B41J2/16

    CPC分类号： B41J2/1623 ,  B41J2/1604 ,  B41J2/1606 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1642

    摘要： An ink jet printhead is disclosed which includes at least one nozzle-defining channel having non-wetting walls and a step structure therein. The step structure is arranged within the channel so that the inlet to the channel has a cross-section which is larger in area than a cross-section of the nozzle outlet. The non-wetting walls of the channel prevent ink from being driven towards the outlet nozzle by capillary action as would normally occur with wetting channel walls. By controlling a positive pressure applied to an ink supply, the meniscus of the ink within the channel can be controlled to be located adjacent the step structure of the channel and spaced away from the nozzle outlet. When an actuator, such as, for example, a resistive heating element, is actuated, a droplet of ink will be expelled from the outlet nozzle of the channel. However, since the natural location of the meniscus is spaced from the outlet nozzle, when ink surges forward to refill the channel, no additional ink will weep out of the outlet nozzle. The location of the ink meniscus spaced from the nozzle outlet also inhibits the drying of ink within the channel.

    摘要翻译： 公开了一种喷墨打印头，其包括至少一个具有非润湿壁的喷嘴限定通道和其中的台阶结构。 台阶结构布置在通道内，使得通道的入口具有面积大于喷嘴出口横截面的横截面。 通道的非润湿壁防止墨水通过毛细作用被驱动朝向出口喷嘴，如通常在润湿通道壁上发生的那样。 通过控制施加到墨水供应的正压力，可以控制通道内的墨水弯月面位于邻近通道的台阶结构并与喷嘴出口间隔开。 当致动器（例如电阻加热元件）被致动时，墨滴将从通道的出口喷嘴排出。 然而，由于弯液面的自然位置与出口喷嘴间隔开，当墨水向前涌动以重新填充通道时，没有额外的墨水将从出口喷嘴中流出。 与喷嘴出口间隔开的墨水弯液面的位置也抑制了通道内油墨的干燥。