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公开(公告)号：EP1216153A1
公开(公告)日：2002-06-26
申请号：EP00960878.7
申请日：2000-09-22
发明人： Pannu, Sukbir, Singh
CPC分类号： B41J2/025
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) such that each said jet breaks up into ink droplets, in operation of said generator a standing wave being present in the ink in said cavity (13), characterised in that the cross-sectional area of said cavity (13) varies along its length in a manner so as to tailor the form of said standing wave in the cavity (13) such that each said jet breaks up into ink droplets at a respective predetermined distance from said wall (10) of the cavity (13).
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63.发明公开Drop generator for long array ink jet printer 有权TintfenerzeugerfürTintenstrahldrucker mit einer langenDüsenreihe
公开(公告)号：EP1013422A3
公开(公告)日：2001-04-04
申请号：EP99309513.2
申请日：1999-11-29
IPC分类号： B41J2/025
摘要： A drop generator for use in an ink jet printer is capable of stimulating long ink jet arrays at high operating frequencies. The drop generator comprises a substantially uniform cross section for a central portion and two end sections with different cross sections. The end sections have features to adjust a resonant frequency of the end sections to match that of the central portion. In particular, these features comprise cuts on a top of the drop generator. The drop generator utilizes multi-lobed radial bending modes for vibration of an array of orifices, and the vibrational modes are driven by at least two rows of transducers which extend substantially the length of the drop generator. The transducers are placed consistent with a lobe structure of an operational radial bending mode.
摘要翻译： 用于喷墨打印机的液滴发生器能够在高工作频率下刺激长喷墨阵列。 液滴发生器包括用于中心部分的基本均匀的横截面和具有不同横截面的两个端部部分。 端部具有调节端部的谐振频率以匹配中心部分的谐振频率的特征。 特别地，这些特征包括在液滴发生器的顶部上的切口。 液滴发生器利用多叶径向弯曲模式来对孔阵列进行振动，振动模式由基本上延伸出液滴发生器长度的至少两排换能器驱动。 换能器与操作径向弯曲模式的凸角结构放置一致。
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公开(公告)号：EP0983144A4
公开(公告)日：2001-02-28
申请号：EP98920329
申请日：1998-05-07
发明人： SACHS EMANUEL M , SERDY JAMES G
CPC分类号： B41J2/025 , B33Y30/00 , B41J2002/022
摘要： A droplet generator and ink jet printhead assembly employing the droplet generator are disclosed. The assembly includes nozzle (12) having orifice (15), liquid reservoir or supply (16) for containing a liquid (30) to be emitted from nozzle (12) and non-resonant elastically deformable fluid conduit (18) for conveying liquid (30) from liquid reservoir (16) to nozzle (12). Transducer (20) is disposed in an abutting relation with fluid conduit (18) a predetermined distance(s) from the nozzle (12). Transducer (20) is energized by a suitable electrical signal, such as a sinusoidal signal. Transducer (20) causes compression of conduit (18) and provides a wave which propagates along fluid conduit (18) and fluid (30) contained therein toward nozzle (12) and orifice (15). This wave acts to perturb the stream formed at orifice (15) and to initiate the break-up of the stream into droplets. The utilization of an elastically deformable non-resonant conduit (18) between transducer (20) and nozzle (12) mechanically decouples nozzle (12) from the remainder of the printhead assembly and provides filtering of undesired frequencies which might otherwise be imparted to fluid (30) and nozzle (12).
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公开(公告)号：EP0805026B1
公开(公告)日：2000-05-24
申请号：EP97302688.3
申请日：1997-04-21
发明人： Huliba, David, A.
CPC分类号： B41J2/025 , B41J2202/22
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66.发明公开Brazing process for a continuous ink jet printhead 失效Hintlötverfahrenfüreinen kontinuierlich arbeitenden Tintenstrahldrucker
公开(公告)号：EP0805026A1
公开(公告)日：1997-11-05
申请号：EP97302688.3
申请日：1997-04-21
发明人： Huliba, David, A.
CPC分类号： B41J2/025 , B41J2202/22
摘要： A brazing process is provided for joining machined resonator portions (1A,1B) to yield a single resonator body (1) for a continuous ink jet printhead. A first resonator body portion (1A) and a second resonator body portion (1B) are provided, each resonator portion having partial fluid ingress (8), fluid egress (9), and nozzle plate (2) channel fluid cavities. A braze preform is then insertable between the first and second resonator body portions to join the first and second resonator body portions. Alignment pins secure and align the first resonator body portion (1A) to the second resonator body portion (1B).
摘要翻译： 提供了用于连接加工的谐振器部分（1A，1B）的钎焊工艺，以产生用于连续喷墨打印头的单个谐振器体（1）。 提供了第一谐振器本体部分（1A）和第二谐振器本体部分（1B），每个谐振器部分具有部分流体入口（8），流体出口（9）和喷嘴板（2）通道流体腔。 然后，钎焊预成型件可插入第一和第二谐振器本体部分之间，以接合第一和第二谐振器本体部分。 对准销将第一谐振器主体部分（1A）固定并对齐到第二谐振器本体部分（1B）。
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公开(公告)号：EP0596530B1
公开(公告)日：1997-07-30
申请号：EP93117999.8
申请日：1993-11-05
发明人： Suzuki, Kazunaga , Abe, Tomoaki , Hiraide, Shoichi
CPC分类号： B41J2/04541 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/055
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68.发明公开
公开(公告)号：EP0780231A1
公开(公告)日：1997-06-25
申请号：EP96309228.3
申请日：1996-12-18
CPC分类号： B41J2/085 , B41J2/025 , B41J2/185 , B41J2002/1853
摘要： A print head for a continuous ink jet printer has a nozzle 5 through which ink is emitted and broken up into droplets under the action of a piezoelectric oscillator. A charge electrode 3 applies charge to selected droplets and a deflection electrode 4 deflects the path 20 of the charged droplets to cause printing on a substrate. A gutter 6 collects droplets which are not required for printing. A charge electrode 3, together with one of the deflection electrodes 4 is movable in a direction transverse to the path of the droplets selectively under the action of pressurised ink fed from an ink supply 14. Similarly, the gutter 6 is movable in the same way.
摘要翻译： 用于连续喷墨打印机的打印头具有喷嘴5，喷墨头5在压电振荡器的作用下通过该喷嘴5发射并分解成液滴。 充电电极3向所选择的液滴施加电荷，并且偏转电极4使带电液滴的路径20偏转以在基板上进行印刷。 沟槽6收集不需要打印的液滴。 充电电极3与一个偏转电极4一起可以在从墨水供应源14供给的加压墨水的作用下选择性地在垂直于液滴的路径的方向上移动。类似地，沟槽6可以以相同的方式移动 。
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公开(公告)号：EP0449929B1
公开(公告)日：1995-07-19
申请号：EP90900963.1
申请日：1989-12-20
IPC分类号： B41J2/025
CPC分类号： B41J2/025
摘要： A modulating device for breaking ink jets in an ink jet printing machine into trains of uniform droplets comprises a nozzle plate (24) provided with a substantially linear array of nozzles and forming one wall of an ink cavity (23); and acoustic generator in the form of an elongate body (26) projecting towards the nozzle plate to transmit acoustic vibrations into ink into the cavity. The body is shaped and tuned to vibrate substantially only in the longitudinal mode and at a resonant frequency which is within ten percent of a frequency to excite natural resonant vibrations in the ink in the cavity between the end of the body and the nozzle plate, the width of the body being less than the length of the nozzle array or of that part of the array associated with that body.
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公开(公告)号：EP0639458A2
公开(公告)日：1995-02-22
申请号：EP94305467.6
申请日：1994-07-25
IPC分类号： B41J2/025
CPC分类号： B41J2/025
摘要： A mounting arrangement for an ink jet printing device has a drop generator (10) for producing continuous streams of ink drops from at least one orifice in an array. The mounting arrangement comprises vertical slots (20) located perpendicular to the longitudinal axis of the array and body (16). One or more of the slots (20) may include a retaining portion (22) near a nodal plane of the resonator body (16). Hollow mounting tubes (18) are insertable into the retaining portion (22) in a press fit relationship.
摘要翻译： 用于喷墨打印装置的安装装置具有用于从阵列中的至少一个孔口产生连续墨滴流的墨滴发生器（10）。 安装装置包括垂直于阵列和主体（16）的纵向轴线定位的垂直狭槽（20）。 一个或多个槽（20）可以包括靠近谐振器本体（16）的节平面的保持部分（22）。 中空安装管（18）可以压配合关系插入保持部分（22）中。
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