Printhead having isolated heater
    31.
    发明授权
    Printhead having isolated heater 有权
    打印头有隔离加热器

    公开(公告)号:US08540349B2

    公开(公告)日:2013-09-24

    申请号:US12143880

    申请日:2008-06-23

    IPC分类号: B41J2/05

    摘要: A liquid ejector includes a substrate, a heating element, a dielectric material layer, and a chamber. The substrate includes a first surface. The heating element is located over the first surface of the substrate such that a cavity exists between the heating element and the first surface of the substrate. The dielectric material layer is located between the heating element and the cavity such that the cavity is laterally bounded by the dielectric material layer. The chamber, including a nozzle, is located over the heating element. The chamber is shaped to receive a liquid with the cavity being isolated from the liquid.

    摘要翻译: 液体喷射器包括基板,加热元件,电介质材料层和腔室。 基板包括第一表面。 加热元件位于基板的第一表面之上,使得在加热元件和基板的第一表面之间存在空腔。 介电材料层位于加热元件和空腔之间,使得腔体被电介质材料层横向界定。 包括喷嘴的腔室位于加热元件上方。 腔室被成形为接收液体,空腔与液体隔离。

    STEERING FLUID JETS
    33.
    发明申请
    STEERING FLUID JETS 失效
    转向流体喷嘴

    公开(公告)号:US20090046129A1

    公开(公告)日:2009-02-19

    申请号:US11840296

    申请日:2007-08-17

    摘要: A printer includes a printhead and a source of fluid. The printhead includes a nozzle. The fluid is under pressure sufficient to eject a column of the fluid through the nozzle. The fluid has a temperature. An asymmetric thermal modulator is associated with the nozzle and includes a structure that transiently lowers the temperature of a first portion of the fluid as the fluid is ejected through the nozzle and a structure that transiently raises the temperature of a second portion of the fluid as the fluid is ejected through the nozzle.

    摘要翻译: 打印机包括打印头和流体源。 打印头包括喷嘴。 流体的压力足以通过喷嘴喷射流体的一列。 流体有一个温度。 不对称热调节器与喷嘴相关联,并且包括当流体通过喷嘴喷射时瞬时降低流体的第一部分的温度的结构,以及当流体喷射通过喷嘴时将液体的第二部分的温度瞬时升高的结构 流体通过喷嘴喷射。

    Fluid ejector having an anisotropic surface chamber etch
    35.
    发明授权
    Fluid ejector having an anisotropic surface chamber etch 有权
    具有各向异性表面腔蚀刻的流体喷射器

    公开(公告)号:US07213908B2

    公开(公告)日:2007-05-08

    申请号:US10911186

    申请日:2004-08-04

    IPC分类号: B41J2/05

    摘要: A fluid ejecting device and method of forming same are provided. The fluid ejecting device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate. The nozzle plate has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall with the first wall and the second wall being positioned at an angle relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber. A source of fluid impedance includes a physical structure located between the nozzle and the fluid delivery channel.

    摘要翻译: 提供一种流体喷射装置及其形成方法。 流体喷射装置包括具有第一表面和与第一表面相对的第二表面的基底。 在基板的第一表面上形成喷嘴板。 喷嘴板具有喷嘴,流体被喷射通过喷嘴。 液滴形成机构位于喷嘴的周边。 流体室与喷嘴流体连通,并且具有第一壁和第二壁,其中第一壁和第二壁相对于彼此以一定角度定位。 流体输送通道形成在基底中并从基底的第二表面延伸到流体腔。 流体输送通道与流体室流体连通。 流体阻抗源包括位于喷嘴和流体输送通道之间的物理结构。

    Electrostatically actuated drop ejector
    36.
    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
    38.
    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。

    Continuous ink jet printer with micro-valve deflection mechanism and method of controlling same
    40.
    发明授权
    Continuous ink jet printer with micro-valve deflection mechanism and method of controlling same 失效
    具有微型阀偏转机构的连续喷墨打印机及其控制方法

    公开(公告)号:US06474795B1

    公开(公告)日:2002-11-05

    申请号:US09468987

    申请日:1999-12-21

    IPC分类号: B41J2105

    摘要: A continuous inkjet printer in which a continuous ink stream is deflected at the printhead nozzle bore without the need for charged deflection plates or tunnels. The printhead includes a primary ink delivery channel which delivers a primary flow of pressurized ink through an ink staging chamber to the nozzle bore to create an undeflected ink stream from the printhead. A secondary ink delivery channel adjacent to the primary channel is controlled by a thermally actuated valve to selectively create a lateral flow of pressurized ink into the primary flow thereby causing the emitted ink stream to deflect in a direction opposite to the direction from which the secondary ink stream impinges the primary ink stream in the ink staging chamber. A method of fabricating the printhead includes layering of the thermally actuated valve over the secondary ink delivery channel formed in a silicon substrate and creating the ink staging chamber over the delivery channels with sacrificial material which is later removed through the nozzle bore etched into the chamber wall formed over the sacrificial material.

    摘要翻译: 连续喷墨打印机,其中连续墨水流在打印头喷嘴孔处偏转,而不需要带电偏转板或隧道。 打印头包括主要的墨水输送通道,其将加压油墨的一次流通过墨水分级室输送到喷嘴孔,以产生来自打印头的未偏转的墨水流。 邻近主要通道的次要油墨输送通道由热致动阀控制,以选择性地产生加压油墨的侧向流入主流,从而使排出的油墨流沿与二次油墨的方向相反的方向偏转 液流撞击墨水分级室中的主墨水流。 制造打印头的方法包括在形成在硅衬底中的辅助墨水输送通道上层叠热致动阀,并且通过牺牲材料在输送通道上产生墨水分级室,该牺牲材料随后通过蚀刻到腔壁中的喷嘴孔去除 形成在牺牲材料上。