Printhead provided with individual nozzle enclosures
    91.
    发明授权
    Printhead provided with individual nozzle enclosures 失效
    打印头配有单独的喷嘴外壳

    公开(公告)号:US07753484B2

    公开(公告)日:2010-07-13

    申请号:US12015218

    申请日:2008-01-16

    IPC分类号: B41J2/135

    摘要: A printhead comprising a plurality of unit cells, at least one of the plurality of unit cells comprising a substrate including an ink inlet passage. A chamber is defined by chamber sidewalls and at least part of a nozzle plate defining an aperture for ejection of ink from the chamber, the chamber being in fluid communication with the inlet passage. A nozzle enclosure comprising enclosure sidewalls and a roof defining an opening for ejection of ink, the nozzle enclosure surrounding the aperture. Ink ejected from the aperture is directed to the opening of the nozzle enclosure, thereby isolating the aperture from an adjacent aperture of an adjacent unit cell.

    摘要翻译: 一种打印头,包括多个单位单元,所述多个单位单元中的至少一个单元单元包括包括墨水入口通道的基板。 腔室由腔室侧壁和限定用于从腔室喷射墨水的孔的喷嘴板的至少一部分限定,腔室与入口通道流体连通。 喷嘴外壳包括外壳侧壁和限定用于喷射墨水的开口的顶盖,所述喷嘴外壳围绕所述孔。 从孔径喷射的墨水被引导到喷嘴外壳的开口,从而将孔与相邻单元的相邻孔隔开。

    Inkjet Printer
    92.
    发明申请
    Inkjet Printer 有权
    喷墨打印机

    公开(公告)号:US20100079556A1

    公开(公告)日:2010-04-01

    申请号:US12239815

    申请日:2008-09-29

    IPC分类号: G03G15/00

    CPC分类号: G03G15/104

    摘要: An inkjet printer comprising: a printhead having a plurality of nozzles assemblies, each nozzle assembly comprising: a nozzle chamber for containing ink, the chamber having a nozzle opening and an ink inlet; and a bend actuator for ejecting ink droplets from the nozzle opening by generating a positive pressure pulse in the ink during bending of the actuator; and an ink supply system for supplying ink to the printhead; and means for varying a hydrostatic pressure of ink supplied to the printhead, wherein increasing the hydrostatic ink pressure increases a volume of the ejected ink droplets, and decreasing the hydrostatic ink pressure decreases a volume of the ejected ink droplets.

    摘要翻译: 一种喷墨打印机,包括:具有多个喷嘴组件的打印头,每个喷嘴组件包括:用于容纳墨水的喷嘴室,所述腔室具有喷嘴开口和墨水入口; 以及弯曲致动器,用于通过在致动器的弯曲期间在油墨中产生正压脉冲从喷嘴开口喷射墨滴; 以及用于向打印头供墨的供墨系统; 以及用于改变供应到打印头的墨水的静水压力的装置,其中增加静水压墨压力增加了喷射的墨滴的体积,并且降低静水压墨压力降低了喷射的墨滴的体积。

    Printhead Nozzle Arrangement With Radially Disposed Actuators
    96.
    发明申请
    Printhead Nozzle Arrangement With Radially Disposed Actuators 失效
    带径向布置的打印头喷嘴布置

    公开(公告)号:US20100002055A1

    公开(公告)日:2010-01-07

    申请号:US12560416

    申请日:2009-09-15

    IPC分类号: B41J2/14

    摘要: A nozzle arrangement for an inkjet printhead includes a substrate with a layer of drive circuitry, the substrate defining an ink chamber with an ink supply channel etched through the substrate; and a roof structure having a roof layer over the chamber. The roof structure comprises a nozzle rim positioned around an ejection port defined in the roof layer above the chamber; a plurality of actuators radially spaced about, and displaceable with respect to, the nozzle rim, each actuator having an internal copper core for receiving therethrough a current, each actuator configured to thermally expand into the chamber upon receiving the current; and a series of struts interspersed between the actuators to support the nozzle rim with respect to the roof layer.

    摘要翻译: 用于喷墨打印头的喷嘴装置包括具有驱动电路层的基板,该基板限定具有通过基板蚀刻的供墨通道的墨室; 以及在所述室上具有屋顶层的屋顶结构。 屋顶结构包括围绕限定在室上方的屋顶层中的排出口周围定位的喷嘴边缘; 多个致动器相对于喷嘴边缘径向间隔开并且可移位,每个致动器具有内部铜芯,用于在其中接收电流,每个致动器构造成在接收到电流时热膨胀到腔室中; 并且一系列支柱分散在致动器之间以相对于屋顶层支撑喷嘴边缘。

    Microfluidic System Comprising Mechanically-Actuated Microfluidic Pinch Valve
    97.
    发明申请
    Microfluidic System Comprising Mechanically-Actuated Microfluidic Pinch Valve 失效
    微流体系统包括机械致动微流体夹管阀

    公开(公告)号:US20090318312A1

    公开(公告)日:2009-12-24

    申请号:US12142791

    申请日:2008-06-20

    IPC分类号: C40B60/00

    摘要: A microfluidic system. The system comprises: (A) a microfluidics platform comprising: a compliant body having a microfluidic channel defined therein; a valve sleeve defined by a section of the microfluidic channel, the valve sleeve having a membrane wall defining part of an outer surface of the body; and a compression member for pinching the membrane wall against an opposed wall of the valve sleeve; and (B) a MEMS integrated circuit bonded to the outer surface of the body, the MEMS integrated circuit comprising: a moveable finger engaged with the compression member, the finger being configured to urge the compression member between a closed position in which the membrane wall is sealingly pinched against the opposed wall, and an open position in which the membrane wall is disengaged from the opposed wall; a thermal bend actuator associated with the finger, the actuator configured for controlling movement of the finger; and control circuitry for controlling actuation of the actuator so as to control opening and closing of the valve sleeve.

    摘要翻译: 微流体系统。 该系统包括:(A)微流体平台,包括:具有限定在其中的微流体通道的柔顺体; 由所述微流体通道的一部分限定的阀套,所述阀套具有限定所述主体的外表面的一部分的膜壁; 以及压缩构件,其用于将所述膜壁压靠在所述阀套的相对的壁上; 和(B)结合到所述主体的外表面的MEMS集成电路,所述MEMS集成电路包括:与所述压缩构件接合的可移动的手指,所述手指构造成将所述压缩构件推压在闭合位置,在所述闭合位置, 密封地夹在相对的壁上,以及打开位置,其中膜壁与相对的壁分离; 与手指相关联的热弯曲致动器,致动器构造成用于控制手指的移动; 以及用于控制致动器的致动以控制阀套的打开和关闭的控制电路。

    MEMS Integrated Circuit Comprising Microfluidic Diaphragm Valve
    99.
    发明申请
    MEMS Integrated Circuit Comprising Microfluidic Diaphragm Valve 失效
    包含微流体隔膜阀的MEMS集成电路

    公开(公告)号:US20090314365A1

    公开(公告)日:2009-12-24

    申请号:US12142789

    申请日:2008-06-20

    IPC分类号: F16K13/00

    摘要: A MEMS integrated circuit comprising one or more microfluidic diaphragm valves and control circuitry for the valves. Each valve comprises: an inlet port; an outlet port; a weir positioned between the inlet and outlet ports, the weir having a sealing surface; a diaphragm membrane for sealing engagement with the sealing surface; and a thermal bend actuator for moving the diaphragm membrane between a closed position in which the membrane is sealingly engaged with the sealing surface and an open position in which the membrane is disengaged from the sealing surface. The control circuitry is configured to control actuation of the actuator so as to control opening and closing of the valve.

    摘要翻译: MEMS集成电路包括一个或多个微流体隔膜阀和用于阀的控制电路。 每个阀包括:入口; 出口口 位于入口和出口之间的堰,堰具有密封表面; 用于与密封表面密封接合的隔膜; 以及热弯曲致动器,其用于在隔膜与密封表面密封接合的关闭位置和膜与密封表面脱离的打开位置之间移动隔膜。 控制电路被配置为控制致动器的致动以控制阀的打开和关闭。

    THERMAL BEND ACTUATOR COMPRISING BENT ACTIVE BEAM HAVING RESISTIVE HEATING BARS
    100.
    发明申请
    THERMAL BEND ACTUATOR COMPRISING BENT ACTIVE BEAM HAVING RESISTIVE HEATING BARS 有权
    包括具有电阻式加热棒的弯曲活动梁的热弯曲致动器

    公开(公告)号:US20090273646A1

    公开(公告)日:2009-11-05

    申请号:US12114826

    申请日:2008-05-05

    IPC分类号: B41J2/05

    摘要: A thermal bend actuator comprising: (a) a pair of electrical contacts positioned at one end of the actuator; (b) an active beam connected to the electrical contacts and extending longitudinally away from the contacts, the active beam defining a bent current flow path between the contacts; and (c) a passive beam fused to the active beam. When a current is passed through the active beam, the active beam heats and expands relative to the passive beam, resulting in bending of the actuator. The active beam comprises a resistive heating bar having a relatively smaller cross-sectional area than any other part of the current flow path. Heating of the active beam is concentrated in the heating bar.

    摘要翻译: 一种热弯曲致动器,包括:(a)位于致动器一端的一对电触点; (b)主动梁连接到电触点并纵向延伸远离触点,有源光束限定了触点之间的弯曲电流流动路径; 和(c)与主动梁融合的被动束。 当电流通过有源光束时,有源光束相对于被动光束加热和膨胀,导致致动器的弯曲。 主动梁包括具有比当前流动路径的任何其它部分相对更小的横截面面积的电阻加热棒。 主动梁的加热集中在加热棒中。