Nozzle structure for jet printers
    1.
    发明授权
    Nozzle structure for jet printers 失效
    喷墨打印机喷嘴结构

    公开(公告)号:US3667678A

    公开(公告)日:1972-06-06

    申请号:US3667678D

    申请日:1970-03-13

    Applicant: IBM

    Inventor: HASKELL JOHN W

    CPC classification number: B41J2/025

    Abstract: An ink jet nozzle structure comprising a thin tube, connected to a pressurized ink reservoir, is encircled by an A. C. driven coil which induces longitudinal reciprocating motion to cause formation of ink droplets. A permanent magnet is in the proximity of the drive coil provides a biasing action. The tube length is chosen so as to permit it to vibrate resonantly at the frequency of the induced longitudinal reciprocating motion. Resonant vibration permits the tube to be supported at two points along its length greatly increasing its mechanical stability. An air damper located near the tip of the nozzle broadens the resonant response and provides differential signals proportional to the longitudinal movement of the tube to maintain movements at a fixed or preset level.

    Abstract translation: 包括连接到加压墨水储存器的薄管的喷墨喷嘴结构由A.C驱动的线圈包围,该线圈引起纵向往复运动以引起墨滴的形成。 永磁体在驱动线圈附近提供偏置动作。 选择管长度以使其能够以感应的纵向往复运动的频率共振地振动。 共鸣振动允许管沿其长度的两个点被支撑,大大提高了其机械稳定性。 位于喷嘴尖端附近的空气阻尼器使共振响应变宽,并提供与管的纵向运动成比例的差分信号,以将运动维持在固定或预设水平。

    Phase control for ink jet printer
    3.
    发明授权
    Phase control for ink jet printer 失效
    喷墨打印机的相位控制

    公开(公告)号:US3898673A

    公开(公告)日:1975-08-05

    申请号:US38064173

    申请日:1973-07-19

    Applicant: IBM

    Inventor: HASKELL JOHN W

    CPC classification number: B41J2/115

    Abstract: A gutter structure for catching discarded ink drops from an ink jet nozzle comprises a multisection electrode structure to separate drops having different phase relations. A relatively low calibrating voltage is applied to the drop charging electrode in conjunction with a character generation signal so that the calibrating voltage prevails to deflect drops whenever a drop is to be discarded. Circuitry connected to the different electrode sections controls the phase relation of the drop charging voltage and the drop formation in accordance with detection of the calibrating voltage drops to maintain the proper phase relations.

    Abstract translation: 用于从喷墨嘴捕获丢弃的墨滴的沟槽结构包括用于分离具有不同相位关系的液滴的多段电极结构。 结合字符产生信号将相对较低的校准电压施加到液滴充电电极,使得当丢弃液滴时,校准电压优先偏移。 连接到不同电极部分的电路根据校准电压降的检测来控制液滴充电电压和液滴形成的相位关系,以保持适当的相位关系。

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