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    Fluid ejection systems
    1.
    发明公开
    Fluid ejection systems 有权
    用于喷液系统

    公开(公告)号：EP1208982A3

    公开(公告)日：2003-08-13

    申请号：EP01309522.9

    申请日：2001-11-12

    申请人： Xerox Corporation

    发明人： Gooray, Arthur M. ,  Roller, George J. ,  Galambos, Paul ,  Peter, Frank J. ,  Zavadil, Kevin ,  Givler, Richard C. ,  Crowley Jnr., Joseph

    IPC分类号： B41J2/14

    CPC分类号： B41J2/14314

    摘要： A bi-directional fluid ejector (200) operates on the principle of electrostatic attraction. The fluid ejector includes a sealed dual diaphragm arrangement (210), an electrode arrangement (220,222) that is parallel and opposite to the sealed diaphragms, and a structure (240) which contains the fluid to be ejected. A diaphragm chamber (216,218) containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms (210). At least one nozzle hole (242,244) is formed in a faceplate of the ejector over one of the diaphragms (210). A drive signal is applied to at least one electrode (220,222) of the electrode arrangement to generate an electrostatic field between the electrode (220,222) and a first one of the diaphragms (210). The first diaphragm is attracted towards the electrode (222) by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms (210). The transmitted pressure and the relatively incompressible nature of the fluid contained within the sealed diaphragm chamber (218) causes the second diaphragm (210) to deflect in the opposite direction to force fluid through at least one of the at least one nozzle hole (242). After a drop is ejected, the movement is reversed, either through normal resilient restoration actions of the deformed diaphragm (210) and/or through an applied force generated by the other electrode (220).

    Fluid ejector
    2.
    发明公开
    Fluid ejector 有权
    Flüssigkeitsausstossgerät

    公开(公告)号：EP1208984A1

    公开(公告)日：2002-05-29

    申请号：EP01309516.1

    申请日：2001-11-12

    申请人： Xerox Corporation

    发明人： Gooray, Arthur M. ,  Roller, George J. ,  Galambos, Paul ,  Peter, Frank J. ,  Zavaldi, Kevin ,  Givler, Richard C. ,  Humphreys, Russel D. ,  Sniegowski, Jerffry J. ,  Crowley, Joseph Jr.

    IPC分类号： B41J2/14

    CPC分类号： B41J2/14 ,  B41J2002/041

    摘要： A primary coil (130) and a secondary coil (140) are situated in the ejector, which has a resiliently mounted movable piston (110) to eject fluid through a nozzle (122). A drive signal is applied to cause current to flow in the primary coil (130). The current flow generates a magnetic field that induces a current in the secondary coil (140). Either the primary coil (130) or the secondary coil (140) is associated with the piston (110) and the other is associated with a fixed structure (120) of the ejector. As a result, a magnetic force is generated that pushes the piston (110) either toward a nozzle plate (120) so that a drop is ejected through the nozzle (122) or away from the nozzle plate so that fluid fills the chamber. When the drive signal is turned off, the piston resiliently returns to its at-rest position, thereby either refilling the ejected fluid or ejecting a drop of fluid through the nozzle (122). In other embodiments, the nozzle plate is made of a magnetic material, or is coated with or connected to a magnetic material. Switching the direction of the current changes the magnetic force between attraction and repulsion and may be used positively to move the piston in both directions.

    摘要翻译： 本发明的系统和方法通过磁力驱动流体喷射器来操作。 在各种示例性实施例中，初级线圈和次级线圈位于喷射器中。 喷射器具有可移动活塞，可用于通过喷嘴孔喷射流体。 活塞可以弹性地安装并偏置到静止位置。 施加驱动信号以使电流在初级线圈中流动。 电流产生在次级线圈中产生电流的磁场。 初级线圈或次级线圈或与活塞相关联的线圈或者与线圈相关联的另一个线圈与喷射器的固定结构相关联。 结果，产生磁力将活塞推向面板，使得一滴液体通过面板中的喷嘴孔或远离面板喷射，使得流体填充活塞和活塞之间的流体室 面板。 当驱动信号关闭时，活塞弹性地返回到其静止位置，从而重新填充喷射的流体或者通过面板中的喷嘴孔喷射一滴液体。 在各种其他实施例中，面板由诸如铁类材料的磁性材料制成，或者被涂覆或连接到磁性材料。 在各种其他实施例中可以包括第二初级线圈或永磁体。 在各种实施例中，切换电流的方向改变吸引力和排斥之间的磁力。

    Fluid ejection systems
    5.
    发明公开
    Fluid ejection systems 有权
    Systeme zum Ausstossen vonFlüssigkeit

    公开(公告)号：EP1208982A2

    公开(公告)日：2002-05-29

    申请号：EP01309522.9

    申请日：2001-11-12

    申请人： Xerox Corporation

    发明人： Gooray, Arthur M. ,  Roller, George J. ,  Galambos, Paul ,  Peter, Frank J. ,  Zavadil, Kevin ,  Givler, Richard C. ,  Crowley Jnr., Joseph

    IPC分类号： B41J2/04

    CPC分类号： B41J2/14314

    摘要： A bi-directional fluid ejector (200) operates on the principle of electrostatic attraction. The fluid ejector includes a sealed dual diaphragm arrangement (210), an electrode arrangement (220,222) that is parallel and opposite to the sealed diaphragms, and a structure (240) which contains the fluid to be ejected. A diaphragm chamber (216,218) containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms (210). At least one nozzle hole (242,244) is formed in a faceplate of the ejector over one of the diaphragms (210). A drive signal is applied to at least one electrode (220,222) of the electrode arrangement to generate an electrostatic field between the electrode (220,222) and a first one of the diaphragms (210). The first diaphragm is attracted towards the electrode (222) by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms (210). The transmitted pressure and the relatively incompressible nature of the fluid contained within the sealed diaphragm chamber (218) causes the second diaphragm (210) to deflect in the opposite direction to force fluid through at least one of the at least one nozzle hole (242). After a drop is ejected, the movement is reversed, either through normal resilient restoration actions of the deformed diaphragm (210) and/or through an applied force generated by the other electrode (220).

    摘要翻译： 双向流体喷射器（200）以静电吸引原理工作。 流体喷射器包括密封的双隔膜装置（210），与密封隔膜平行和相对的电极装置（220,222）和包含要喷射的流体的结构（240）。 包含相对不可压缩流体的隔膜室（216,218）位于隔膜（210）的后面并被隔膜（210）密封。 至少一个喷嘴孔（242,244）形成在喷射器的面板中的一个隔膜（210）上。 驱动信号被施加到电极装置的至少一个电极（220,222），以在电极（220,222）和第一隔膜（210）之间产生静电场。 第一隔膜由于静电场而被静电力吸引到变形形状的电极（222）上。 在变形时，压力传递到密封隔膜（210）中的第二个。 包含在密封隔膜室（218）内的流体的传输压力和相对不可压缩的性质导致第二隔膜（210）在相反方向上偏转以迫使流体通过至少一个喷嘴孔（242）中的至少一个， 。 在液滴被弹出之后，运动通过变形膜片（210）的正常弹性恢复动作和/或通过另一电极（220）产生的施加力来反转。