Electrostatic fluid ejector with dynamic valve control
    1.
    发明授权
    Electrostatic fluid ejector with dynamic valve control 失效
    具有动态阀门控制功能的静电喷射器

    公开(公告)号:US06702209B2

    公开(公告)日:2004-03-09

    申请号:US10138908

    申请日:2002-05-03

    IPC分类号: B05B300

    CPC分类号: B41J2/14314

    摘要: A drop-on-demand liquid emission device, such as for example an ink jet printer, includes a member movable through a path for driving liquid from the device, wherein the speed at which the member moves is reduced over the time period that liquid is being expelled. During that time period, a portion of the liquid flows through a passage away from the nozzle orifice. According to a feature of the present invention, a variable flow restrictor increases the resistance to flow through the passage during the time period that liquid is being expelled; thereby tending to compensate for the reduction of the liquid-expulsion force over the time period. The result is a reduction of undesirable satellite droplets following a main drop.

    摘要翻译: 液滴喷射装置例如喷墨打印机包括可移动通过用于从装置驱动液体的路径的构件,其中构件移动的速度在液体为 被驱逐 在该时间段期间,一部分液体流过远离喷嘴孔的通道。 根据本发明的特征,可变流量限制器在液体被排出的时间段内增加了通过通道的流动阻力; 从而有助于补偿在该时间段内液体排出力的减少。 结果是在主下降之后减少不期望的卫星液滴。

    Incorporation of supplementary heaters in the ink channels of CMOS/MEMS integrated ink jet print head and method of forming same
    4.
    发明授权
    Incorporation of supplementary heaters in the ink channels of CMOS/MEMS integrated ink jet print head and method of forming same 失效
    在CMOS / MEMS集成喷墨打印头的墨水通道中加入辅助加热器及其形成方法

    公开(公告)号:US06412928B1

    公开(公告)日:2002-07-02

    申请号:US09751115

    申请日:2000-12-29

    IPC分类号: B41J202

    摘要: An ink jet print head is formed of a silicon substrate that includes integrated circuits formed therein for controlling operation of the print head. The silicon substrate has a series of ink channels formed therein along the length of the substrate. An insulating layer or layers overlying the silicon substrate has a series of nozzle openings or bores formed therein along the length of the substrate and each nozzle bore communicates with a respective ink channel. A primary heater element is associated with each nozzle bore for asymmetrically heating the ink in the nozzle bore. A secondary heater element is provided upstream of the primary heater element and formed in the insulating layer to preheat ink just prior to entry of the ink into the nozzle bores.

    摘要翻译: 喷墨打印头由硅基板形成,该硅基板包括形成在其中的集成电路,用于控制打印头的操作。 硅衬底沿着衬底的长度形成有一系列油墨通道。 覆盖硅衬底的绝缘层或层沿着衬底的长度形成有一系列喷嘴孔或孔,每个喷嘴孔与相应的油墨通道连通。 主加热器元件与每个喷嘴孔相关联,用于不对称地加热喷嘴孔中的墨。 第二加热器元件设置在主加热器元件的上游,并形成在绝缘层中,以在墨水进入喷嘴孔之前预热墨水。

    CMOS/MEMS integrated ink jet print head with oxide based lateral flow nozzle architecture and method of forming same
    5.
    发明授权
    CMOS/MEMS integrated ink jet print head with oxide based lateral flow nozzle architecture and method of forming same 失效
    CMOS / MEMS集成喷墨打印头与基于氧化物的侧流喷嘴结构及其形成方法

    公开(公告)号:US06780339B2

    公开(公告)日:2004-08-24

    申请号:US10025363

    申请日:2001-12-19

    IPC分类号: G01D1500

    摘要: A continuous ink jet print head is formed using a combination of traditional CMOS technology to form the various controlling electrical circuits on a silicon substrate having insulating layer(s) which provide electrical connections and a MEMS technology for forming nozzle openings. A blocking structure is formed in the insulating layer(s) between a first ink channel formed in the silicon substrate and a second ink channel formed in the insulating layer(s). The blocking structure causes ink to flow around the blocking structure and thereby develop lateral flow components to the liquid entering the second channel so that, for droplets selected for printing, as the stream of droplets emanates from the bore of the nozzle, there is provided a reduced amount of heat needed for operating a heating element adjacent each nozzle opening.

    摘要翻译: 使用传统CMOS技术的组合形成连续喷墨打印头,以在具有提供电连接的绝缘层的硅基板上形成各种控制电路,以及用于形成喷嘴开口的MEMS技术。 在形成在硅衬底中的第一油墨通道和形成在绝缘层中的第二油墨通道之间的绝缘层中形成阻挡结构。 阻挡结构使油墨绕阻塞结构流动,从而向进入第二通道的液体形成横向流动分量,使得当液滴从喷嘴的孔发出时,为了选择用于印刷的液滴,提供了一种 在每个喷嘴开口附近操作加热元件所需的减少的热量。

    CMOS/MEMS integrated ink jet print head with oxide based lateral flow nozzle architecture and method of forming same
    6.
    发明授权
    CMOS/MEMS integrated ink jet print head with oxide based lateral flow nozzle architecture and method of forming same 失效
    CMOS / MEMS集成喷墨打印头,具有基于氧化物的侧向流动喷嘴结构及其形成方法

    公开(公告)号:US06382782B1

    公开(公告)日:2002-05-07

    申请号:US09751593

    申请日:2000-12-29

    IPC分类号: B41J2105

    摘要: A continuous ink jet print head is formed using a combination of traditional CMOS technology to form the various controlling electrical circuits on a silicon substrate having insulating layer(s) which provide electrical connections and a MEMS technology for forming, nozzle openings. A blocking structure is formed in the insulating layer(s) between a first ink channel formed in the silicon substrate and a second ink channel formed in the insulating layer(s). The blocking structure causes ink to flow around the blocking structure and thereby develop lateral flow components to the liquid entering the second channel so that, for droplets selected for printing, as the stream of droplets emanates from the bore of the nozzle, there is provided a reduced amount of heat needed for operating a heating element adjacent each nozzle opening.

    摘要翻译: 使用传统CMOS技术的组合形成连续喷墨打印头,以在具有提供电连接的绝缘层和用于形成喷嘴开口的MEMS技术的硅基板上形成各种控制电路。 在形成在硅衬底中的第一油墨通道和形成在绝缘层中的第二油墨通道之间的绝缘层中形成阻挡结构。 阻挡结构使油墨绕阻塞结构流动,从而向进入第二通道的液体形成横向流动分量,使得当液滴从喷嘴的孔发出时,为了选择用于印刷的液滴,提供了一种 在每个喷嘴开口附近操作加热元件所需的减少的热量。

    Electrostatically actuated drop ejector
    7.
    发明授权
    Electrostatically actuated drop ejector 失效
    静电驱动滴液喷射器

    公开(公告)号:US06874867B2

    公开(公告)日:2005-04-05

    申请号:US10325205

    申请日:2002-12-18

    CPC分类号: B41J2/14314

    摘要: A drop emission device includes a chamber having a nozzle orifice through which a drop of liquid can be emitted. A deformable electrode is associated with the chamber such that movement of the electrode in a first direction increases the chamber's volume and movement of the electrode in a second direction decreases the chamber's volume to emit a drop through the nozzle orifice. A fixed electrode opposes to the deformable electrode to define a second chamber there between such that control of relative voltage differences between the deformable and the fixed electrodes selectively moves the deformable electrode in the first or second directions. The variable volume is vented to a source of dielectric material through an opening in the fixed electrode. The ratio of the cross-sectional area of the opening to the perimeter of the opening is greater than 0.5 μm, and is preferably about 5 μm.

    摘要翻译: 液滴发射装置包括具有喷嘴孔的腔室,通过该喷嘴孔可以发射一滴液体。 可变形电极与室相关联,使得电极沿第一方向的运动增加了室的体积,并且电极在第二方向上的移动减小了室的体积,以通过喷嘴孔发出液滴。 固定电极与可变形电极相对以在其间限定第二室,使得可变形和固定电极之间的相对电压差的控制选择性地使可变形电极沿第一或第二方向移动。 可变容积通过固定电极中的开口排出到电介质材料源。 开口的横截面积与开口周长的比例大于0.5μm,优选为约5μm。

    CMOS/MEMS integrated ink jet print head and method of operating same
    8.
    发明授权
    CMOS/MEMS integrated ink jet print head and method of operating same 失效
    CMOS / MEMS集成喷墨打印头及其操作方法

    公开(公告)号:US06502925B2

    公开(公告)日:2003-01-07

    申请号:US09792114

    申请日:2001-02-22

    IPC分类号: B41J205

    摘要: An ink jet print head is formed of a silicon substrate that includes an integrated circuit formed therein for controlling operation of the print head. The silicon substrate has one or more ink channels formed therein along the longitudinal direction of the nozzle array. An insulating layer or layers overlie the silicon substrate and has a series or an array of nozzle openings or bores formed therein along the length of the substrate and each nozzle opening communicates with an ink channel. The area comprising the nozzle openings forms a generally planar surface to facilitate maintenance of the printhead. A heater element is associated with each nozzle opening or bore for asymmetrically heating ink as ink passes through the nozzle opening or bore.

    摘要翻译: 喷墨打印头由硅基板形成,该硅基板包括形成在其中的集成电路,用于控制打印头的操作。 硅基板沿着喷嘴阵列的纵向方向形成有一个或多个油墨通道。 绝缘层或层叠在硅衬底上,并且沿着衬底的长度形成有一系列或阵列的喷嘴开口或孔,并且每个喷嘴开口与油墨通道连通。 包括喷嘴开口的区域形成大致平坦的表面,以便于打印头的维护。 当墨水通过喷嘴开口或孔时,加热器元件与每个喷嘴开口或孔相关联,用于不对称地加热墨。

    CMOS/MEMS integrated ink jet print head with silicon based lateral flow nozzle architecture and method of forming same
    9.
    发明授权
    CMOS/MEMS integrated ink jet print head with silicon based lateral flow nozzle architecture and method of forming same 失效
    CMOS / MEMS集成喷墨打印头,采用硅基侧流喷嘴结构及其形成方法

    公开(公告)号:US06439703B1

    公开(公告)日:2002-08-27

    申请号:US09751722

    申请日:2000-12-29

    IPC分类号: B41J202

    摘要: A continuous ink jet print head is formed using a combination of traditional CMOS technology to form the various controlling electrical circuits on a silicon substrate having insulating layer(s) which provide electrical connections to heater elements associated with a nozzle and a MEMS technology for forming ink delivery cavities or channels and bores. A blocking structure is formed in the silicon substrate between an ink channel formed in the silicon substrate and a nozzle bore formed in the insulating layer(s). The blocking structure causes ink in an ink channel to flow around the blocking structure and thereby develop lateral flow components to the liquid entering the bore so that as the stream of fluid emanates from the bore the lateral flow components are a factor in allowing an increased stream deflection under the condition of asymmetric heating.

    摘要翻译: 使用传统CMOS技术的组合形成连续喷墨打印头,以在具有绝缘层的硅基板上形成各种控制电路,所述绝缘层提供与喷嘴相关联的加热元件的电连接以及用于形成墨的MEMS技术 输送腔或通道和孔。 在硅衬底中形成的硅衬底中形成的墨水通道和形成在绝缘层中的喷嘴孔之间形成阻挡结构。 阻塞结构导致墨水通道中的墨水流过阻塞结构,从而向进入孔的液体形成横向流动分量,使得当流体流从孔发出时,横向流动分量是允许增加流量 在不对称加热条件下的挠曲。