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    A DROPLET GENERATOR FOR A CONTINUOUS STREAM INK JET PRINT HEAD
    91.
    发明公开
    A DROPLET GENERATOR FOR A CONTINUOUS STREAM INK JET PRINT HEAD 有权
    液滴产生对于连续流动喷墨头

    公开(公告)号：EP1196289A1

    公开(公告)日：2002-04-17

    申请号：EP00946056.9

    申请日：2000-07-07

    申请人： Marconi Data Systems Inc.

    发明人： MARTIN, Graham Dagnall ,  SHERMAN, Nigel Edward ,  PANNU, Sukbir Singh ,  KING, Andrew David

    IPC分类号： B41J2/135 ,  B41J2/16 ,  B41J2/025

    CPC分类号： B41J2/1632 ,  B41J2/025 ,  B41J2/162

    摘要： A droplet generator for a continuous stream ink jet print head comprising: an elongate cavity (13) for containing the ink; nozzle orifices (7) in a wall (10) of said cavity (13) for passing ink from the cavity (13) to form jets, said nozzle orifices (7) extending along the length of said cavity (13); and actuator means (3) disposed on the opposite side of said cavity (13) to said wall (10) for vibrating the ink in said cavity (13) by itself vibrating relative to said wall (10), the vibration being such that each said jet breaks up into ink droplets at the same predetermined distance from said wall (10) of the cavity (13), the thickness (k) of said wall (10) through which said nozzle orifices (7) extend being less than 90 νm, said wall (10) comprising a planar member (10) secured to the remainder of said droplet generator so as to form a boundary (12) which extends around said nozzle orifices (7) and within which said planar member (10) is unsupported, said boundary (12) including first and second boundary lengths which extend along the length of said cavity (13) on either side of the nozzle orifices (7), the distance (a) between said first and second boundary lengths being less than 1700 νm.

    Ink jet recording head
    92.
    发明公开
    Ink jet recording head 失效
    Tintenstrahldruckkopf

    公开(公告)号：EP0795404A3

    公开(公告)日：2000-11-02

    申请号：EP97108517.0

    申请日：1992-12-24

    申请人： SEIKO EPSON CORPORATION

    发明人： Miyazawa, Hisashi ,  Nakamura, Takashi ,  Nakamura, Osamu ,  Yasukawa, Shinji ,  Usui, Minoru ,  Abe, Tomoaki ,  Hosono, Satoru ,  Naka, Takahiro

    IPC分类号： B41J2/025 ,  B41J2/16 ,  B41J2/14

    CPC分类号： B41J2/1625 ,  B41J2/14274 ,  B41J2/1612 ,  B41J2/1618 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1643 ,  B41J2002/14387 ,  Y10T29/49401

    摘要： The present invention relates to an ink jet recording head wherein the movement of a piezoelectric element (1) moves part of an ink flow passage substrate (5) so as to jet out ink stored therein in the form of ink droplets. This ink jet recording head comprises: a fixing plate (2), a plurality of piezoelectric vibrators (11) obtainable by cutting and dividing said plage-shaped piezoelectric element (1) while said piezoelectric element is fixed on said fixing plate (2), holding means (3) for positioning and holding at least one of said piezoelectric vibrators (11) and said fixing plate (2) in a direction perpendicular to the displacement direction of said piezoelectric vibrators (11), and an ink flow passage substrate (5) mounted on said holding means (3) and including a nozzle plate (6), an ink flow passage forming plate (7) and an elastic plate (8).

    摘要翻译： 在喷墨记录头中，在将板状压电元件（1）定位并固定在固定板（2）上之后，将压电元件切割成大量的振动器（11）和振动器的前端 被包围地保持在分别形成在保持框架（3）的顶表面中的定位孔（33）中，并且因此位于其外部尺寸中。 此外，空腔单元（5）定位并固定在保持框架（3）的顶表面上。

    Droplet generator and method of operating a droplet generator
    93.
    发明公开
    Droplet generator and method of operating a droplet generator 有权
    Tröpfchengeneratorund Verfahren zum Betrieb desselben

    公开(公告)号：EP0943436A3

    公开(公告)日：2000-05-17

    申请号：EP99301577.5

    申请日：1999-03-03

    申请人： Scitex Digital Printing, Inc.

    发明人： Janse Van Rensburg, Richard Wilhelm

    IPC分类号： B41J2/025 ,  B05B17/06

    CPC分类号： B05B17/0607 ,  B41J2/025 ,  B41J2202/11 ,  B41J2202/15

    摘要： A droplet generator for generating a plurality of streams of ink droplets in a continuous ink jet printer comprises a stimulator plate (66) and means (60) for supplying ink to the stimulator plate (66). The stimulator plate (66) is substantially planar and comprises a substrate (68), a flexible membrane (74) having a line of nozzles (75) and actuator means (78) for vibrating the membrane (74) at a resonant frequency. During use, a standing wave is generated such that the line of nozzles (75) is positioned on a locus of uniform vibrational amplitude.

    摘要翻译： 用于在连续喷墨打印机中产生多个墨滴流的液滴发生器包括刺激板（66）和用于向刺激板（66）供墨的装置（60）。 刺激板（66）基本上是平面的，并且包括衬底（68），具有一列喷嘴（75）的柔性膜（74）和用于以共振频率振动膜（74）的致动器装置（78）。 在使用期间，产生驻波，使得喷嘴线（75）位于均匀振幅的轨迹上。

    TWO-DIMENSIONAL FLUID DROPLET ARRAYS GENERATED USING A SINGLE NOZZLE
    94.
    发明公开
    TWO-DIMENSIONAL FLUID DROPLET ARRAYS GENERATED USING A SINGLE NOZZLE 失效
    二维液相微滴生成由单个喷嘴的方式

    公开(公告)号：EP0921947A4

    公开(公告)日：2000-03-08

    申请号：EP97940591

    申请日：1997-08-07

    申请人： TRUSTEES OF BOARD OF

    发明人： LEE ERIC R ,  PERL MARTIN L

    IPC分类号： B01L3/02 ,  B41J2/025 ,  B41J2/03 ,  B41J2/09 ,  B41J2/12 ,  B41J2/07

    CPC分类号： B01L3/0268 ,  B41J2/025 ,  B41J2/03 ,  B41J2/09 ,  B41J2/12

    摘要： Amplitudes of drive pulses received by a horizontally placed dropper (60) determine horizontal displacements of droplets relative to an ejection aperture (24) of the dropper. The drive pulses are varied by a drive pulse control device (64) applying drive signals to an ejector (62) in differing pulse amplitudes such that the dropper generates a two-dimensional array of vertically-falling droplets (54a, 54b, 54c, 54d). Vertical and horizontal interdroplet spacings (Δy, Δx) may be varied in real time by respectively varying the timings of the pulses and amplitudes of the pulses. Applications include droplet analysis experiments such as Millikan fractional charge searches and aerosol characterization, as well as material deposition applications.

    Improved ink jet stimulation monitoring
    96.
    发明公开
    Improved ink jet stimulation monitoring 失效
    喷墨刺激的监控。

    公开(公告)号：EP0624468A2

    公开(公告)日：1994-11-17

    申请号：EP94303090.8

    申请日：1994-04-28

    申请人： SCITEX DIGITAL PRINTING, Inc.

    发明人： Katerberg, James A. ,  Bowers, Mark C.

    IPC分类号： B41J2/025 ,  B41J2/115

    CPC分类号： B41J2/025

    摘要： An ink jet printing device has a drop generator for producing continuous streams of ink drops from at least one orifice and further has stimulation control electronics for maintaining desired stimulation conditions in response to a feedback from the drop generator. First and second feedback transducers measure the stimulation amplitude in the drop generator and generate feedback output signals in response to the stimulation. The feedback output signals are approximately equal in magnitude and opposite in sign to each other when the stimulation amplitude in the drop generator is a desired stimulation mode. An amplifier, whose inputs are the feedback output signals, provides an amplifier output signal to the stimulation control electronics which is the difference between the two feedback output signals.

    Ink jet type recording apparatus
    97.
    发明公开
    Ink jet type recording apparatus 失效
    喷墨式记录装置

    公开(公告)号：EP0596530A2

    公开(公告)日：1994-05-11

    申请号：EP93117999.8

    申请日：1993-11-05

    申请人： SEIKO EPSON CORPORATION

    发明人： Suzuki, Kazunaga ,  Abe, Tomoaki ,  Hiraide, Shoichi

    IPC分类号： B41J2/055 ,  B41J2/025

    CPC分类号： B41J2/04541 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/055

    摘要： The apparatus comprises: a driving signal generating circuit (49) for generating a first voltage waveform for expanding piezoelectric vibrators at a rate suitable to form ink drops of ink, a second voltage for holding an expansion state or a contraction state, and a third voltage waveform for contracting the piezoelectric vibrators at a rate suitable to suck ink into pressure generating chambers; a discharge end detecting circuit (52) for detecting the time when the process of forming ink drops by the first voltage waveform is ended; a delay circuit (53) for delaying a signal from the circuit (52) by a time AT till the vibration of menisci caused by the process of forming ink drops is switched to the motion toward nozzle openings; a charge signal generating circuit (48) for generating the third voltage waveform on the basis of a signal from the delay circuit (53); and a discharge signal generating circuit (51) for generating the first voltage waveform on the basis of a print timing signal. The third voltage waveform is generated when the menisci produced after forming ink drops have started moving toward the nozzle openings, so that ink required for the next formation of ink drops is sucked into the pressure generating chambers. Therefore, the force to retreat the menisci due to the expansion of the pressure generating chambers is canceled by motion of the menisci per se, and the retreat of the menisci caused by the suction of ink can be limited to the minimum. It is therefore possible to stabilize the positions of the menisci independently of the frequency.

    摘要翻译： 该装置包括：驱动信号产生电路（49），用于产生用于以适于形成墨水墨滴的速率扩展压电振子的第一电压波形，用于保持扩展状态或收缩状态的第二电压，以及用于产生第三电压 用于以适于将墨水吸入压力产生室的速率收缩压电振动器的波形; 一个用于检测由第一电压波形形成墨滴的过程何时结束的放电结束检测电路; 延迟电路（53），用于将来自电路（52）的信号延迟时间ΔT，直到由形成墨滴的过程引起的弯月面的振动切换为朝向喷嘴开口的运动; 充电信号发生电路（48），用于根据来自延迟电路（53）的信号产生第三电压波形; 和放电信号发生电路（51），用于根据打印定时信号产生第一电压波形。 当形成墨滴之后产生的弯月面开始向喷嘴开口移动时产生第三电压波形，从而将下一次形成墨滴所需的墨水吸入压力产生室。 因此，由于压力发生室的膨胀而导致的弯月面退缩力被弯月面本身的运动所抵消，并且由于吸墨引起的弯月面的后退可以被限制到最小。 因此可以独立于频率稳定半月板的位置。

    Capillary unit for ink jet printer
    98.
    发明公开
    Capillary unit for ink jet printer 失效
    Kapillareinheitfüreinen Tintenstrahldrucker。

    公开(公告)号：EP0586844A1

    公开(公告)日：1994-03-16

    申请号：EP93111684.2

    申请日：1993-07-21

    申请人： Siemens Elema AB

    发明人： Almgren, Bertil ,  Rye, Terje

    IPC分类号： B41J2/085 ,  B41J2/025

    CPC分类号： B41J2/085

    摘要： A capillary unit for ink jet printers, containing a nozzle (6) for spraying a jet of ink (2) onto a record carrier (20). The jet of ink breaks up into a series of droplets (14, 18) at a droplet formation point in front of the nozzle. A charging electrode (10), with which the ink droplets are selectively charged for subsequent electrical deflection, is arranged in the area of the droplet deflection point. The charging electrode is devised in the form of a plate (10), arranged perpendicular to the path of the jet, with a through hole (12) for passage of the droplets. The charging electrode (10) is further devised with at least one groove (24) running from the hole (12) to the outer edge of the electrode.

    摘要翻译： 一种用于喷墨打印机的毛细管单元，包括用于将喷墨（2）喷射到记录载体（20）上的喷嘴（6）。 喷墨喷嘴在喷嘴前面的液滴形成点处分解成一系列液滴（14,18）。 在液滴偏转点的区域中布置有用于随后的电偏转选择性地填充墨滴的充电电极（10）。 充电电极设计为垂直于射流路径布置的板（10）的形式，具有用于液滴通过的通孔（12）。 充电电极（10）进一步设计有至少一个从孔（12）延伸到电极的外边缘的凹槽（24）。