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    • 26. 发明申请
    • BURST MODE ELECTROHYDRODYNAMIC PRINTING
    • BURST MODE ELECTROHYDRODYMIC PRINTING
    • US20150015628A1
    • 2015-01-15
    • US13939249
    • 2013-07-11
    • Michael J. MotalaGiuseppe Farruggia
    • Michael J. MotalaGiuseppe Farruggia
    • B41J2/045
    • B41J2/06
    • A method of printing using an electrohydrodynamic printing system includes providing an electrohydrodynamic printing system. The electrohydrodynamic printing system includes a nozzle that dispenses a printing fluid and a substrate that receives the printing fluid. The nozzle includes a conductive portion. A voltage source applies a voltage differential between the conductive portion of the nozzle and the substrate. A controller is configured to control the voltage source such that the printing fluid is deposited on the substrate. The method includes causing a drop of the printing fluid to be formed from the conductive nozzle by using the controller to provide a burst mode waveform to the voltage source.
    • 使用电动力学印刷系统的印刷方法包括提供电动液压印刷系统。 电动液压打印系统包括分配打印流体的喷嘴和接收打印流体的基板。 喷嘴包括导电部分。 电压源在喷嘴的导电部分和基板之间施加电压差。 控制器被配置为控制电压源,使得打印流体沉积在基板上。 该方法包括通过使用控制器使得由导电喷嘴形成的打印流体的液滴提供到电压源的突发模式波形。
    • 28. 发明授权
    • Drop formation with reduced stimulation crosstalk
    • 降低刺激串扰形成
    • US08684483B2
    • 2014-04-01
    • US13417569
    • 2012-03-12
    • Jeremy M. GraceRonald L. OyerGiuseppe Farruggia
    • Jeremy M. GraceRonald L. OyerGiuseppe Farruggia
    • B41J29/38B41J2/02B41J2/085
    • B41J2/105B41J2002/031B41J2002/032B41J2002/033
    • A liquid stream is caused to jet from a nozzle. A small or large drop waveform applied to a drop forming mechanism causes the liquid stream to break up into a small or large volume drop, respectively. The small drop waveform includes a pulse having a width wS, and a period x, where x≈1/fR, where fR is the Rayleigh frequency of the liquid. The large drop waveform includes a period Nx, with the large volume drop being N times the small volume drop. The large drop waveform includes a first pulse having a pulse width wL1, where wL1≧wS, and a second pulse occurring within a period of (fR/fC)x of an initial pulse of a subsequent small or large drop waveform, where fC is the cut off frequency of the liquid. The second pulse includes a pulse width wL2, where wL2
    • 使液体流从喷嘴喷射。 施加到液滴形成机构的小的或大的液滴波形分别导致液体流分解成小的或大的体积下降。 小滴波形包括具有宽度wS的脉冲和周期x,其中x≈1/ fR,其中fR是液体的瑞利频率。 大的下降波形包括周期Nx,其大的体积下降是小体积下降的N倍。 大滴波形包括具有脉冲宽度wL1的第一脉冲,其中wL1≥wS,以及在随后的小或大降波形的初始脉冲的(fR / fC)×x的周期内出现的第二脉冲,其中fC为 液体的截止频率。 第二脉冲包括脉冲宽度wL2,其中wL2