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公开(公告)号：US5421071A
公开(公告)日：1995-06-06
申请号：US22530
申请日：1993-02-25
申请人： Takahiro Kanegae , Masahiko Suzuki , Hiroto Sugahara , Yoshikazu Takahashi , Masayoshi Kinoshita , Manabu Yoshimura
发明人： Takahiro Kanegae , Masahiko Suzuki , Hiroto Sugahara , Yoshikazu Takahashi , Masayoshi Kinoshita , Manabu Yoshimura
CPC分类号： B41J2/1632 , B41J2/1609 , B41J2/1642 , Y10T29/42 , Y10T29/49401
摘要： A liquid-drop ejection device having a plurality of ejectors each having a variable-capacity ink channel. The capacity of the ink channels is variable to generate sufficient pressure to thereby eject ink in the ink channels from nozzles communicating with the ink channels onto paper or the like. The ejection device further comprises a piezoelectric transducer having a plurality of walls for separating the ink channels from one another. The walls have drive electrodes formed on upper or lower portions. The upper portions of the walls are narrower in width than the lower portions. A method of forming the ejection device comprises a first step of forming grooves including portions for receiving drive electrodes, a second step of forming the drive electrodes in the grooves and a third step of further forming the grooves to provide additional portions having widths different from the portions of the grooves formed in the first step.
摘要翻译： 一种具有多个喷射器的液滴喷射装置，每个喷射器具有可变容量墨水通道。 油墨通道的容量是可变的以产生足够的压力，从而将油墨通道中的油墨从与油墨通道连通的喷嘴喷射到纸张等上。 喷射装置还包括具有用于将油墨通道彼此分开的多个壁的压电换能器。 壁具有形成在上部或下部的驱动电极。 壁的上部宽度比下部窄。 一种形成喷射装置的方法包括：形成槽的第一步骤，包括用于接收驱动电极的部分;第二步骤，在槽中形成驱动电极;以及第三步骤，进一步形成槽，以提供具有不同于 在第一步骤中形成的凹槽的部分。
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公开(公告)号：US5650802A
公开(公告)日：1997-07-22
申请号：US415150
申请日：1995-03-31
申请人： Masahiko Suzuki , Yoshikazu Takahashi , Hiroto Sugahara , Takahiro Kanegae , Masayoshi Kinoshita , Manabu Yoshimura
发明人： Masahiko Suzuki , Yoshikazu Takahashi , Hiroto Sugahara , Takahiro Kanegae , Masayoshi Kinoshita , Manabu Yoshimura
CPC分类号： B41J2/07 , B41J2/16517
摘要： Inkjet printer using opposing walls made of piezoelectric material which oscillate during a print mode at a level sufficient to eject droplets of a disperse-system ink contained in an ink chamber through a nozzle and during a redispersion mode at a level sufficient to disperse cohered and sedimented pigment particles into a substantially homogeneous condition throughout the dispersion medium of the disperse-system ink in the ink chamber, but insufficient for ejecting the ink through the nozzle.
摘要翻译： 喷墨打印机使用由压电材料制成的相对壁，其在打印模式期间以足以喷射通过喷嘴喷射在墨水室中的分散系统墨水的液滴的水平振荡，并且在再分散模式期间以足以分散粘附和沉降的水平振荡 颜料颗粒在油墨室中的分散系统油墨的整个分散介质中成为基本均匀的状态，但不足以通过喷嘴喷射油墨。
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公开(公告)号：US5351183A
公开(公告)日：1994-09-27
申请号：US953534
申请日：1992-09-21
CPC分类号： B41J2/1623 , B41J2/1609 , B41J2/1632 , B41J2/1646
摘要： An array of ink droplet ejection devices for use in a drop-on-demand type printer includes a piezoelectric transducer and a cover plate. Both the piezoelectric transducer and the cover plate are formed with a plurality of grooves in parallel to one another. The groove-formed surfaces of the piezoelectric transducer and the cover plate are engaged with each other to form a plurality of ink channels. The piezoelectric transducer and the cover plate are in surface contact with each other at the side surfaces of the respective protrusions. The protrusion of the piezoelectric transducer is uni-directionally deformable to be substantially out of surface contact with the protrusion of the cover plate. With such a construction, the individual ink channels can be operated independently of one another and ink droplets can be simultaneously ejected from the adjacent ejection devices.
摘要翻译： 用于按需喷墨打印机的墨滴喷射装置的阵列包括压电换能器和盖板。 压电换能器和盖板均形成有彼此平行的多个凹槽。 压电换能器和盖板的槽形表面彼此接合以形成多个墨通道。 压电换能器和盖板在各个突起的侧表面彼此表面接触。 压电换能器的突出部是单向可变形的，以与盖板的突起基本上脱离表面接触。 通过这样的结构，可以将各个油墨通道彼此独立地操作，并且可以从相邻的喷射装置同时喷射墨滴。
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公开(公告)号：US5434608A
公开(公告)日：1995-07-18
申请号：US947395
申请日：1992-09-21
CPC分类号： B41J2/14209 , B41J2002/14379 , B41J2002/14387
摘要： A droplet ejecting device comprises a piezoelectric transducer consisting of first and second piezoelectric transducers polarized in the directions opposite to each other, the first and second piezoelectric transducers bonded to each other and having electrodes disposed at the inner and outer surfaces thereof. A member is fitted to the piezoelectric transducer to define ink chambers, the member having an orifice associated with each ink chamber. An injection controller applies an electric field to the electrode(s) associated with the predetermined ink chamber(s) so as to eject an ink droplet(s) from the ink chamber(s) through the orifice(s) in a given position. As a result, the invention provides a droplet ejecting device where an ink ejecting cycle of the array as a whole is short, the print speed is high, and electrodes can be easily manufactured.
摘要翻译： 液滴喷射装置包括由彼此相反方向偏振的第一和第二压电换能器组成的压电换能器，第一和第二压电换能器彼此结合并且具有设置在其内表面和外表面的电极。 将一个构件安装到压电换能器以限定墨水室，该构件具有与每个墨水室相关联的孔口。 注射控制器将电场施加到与预定墨室相关联的电极，以便在给定位置通过孔口从墨水室喷射墨滴。 结果，本发明提供了一种液滴喷射装置，其中阵列的喷墨循环整体较短，打印速度高，并且可以容易地制造电极。
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公开(公告)号：US5396272A
公开(公告)日：1995-03-07
申请号：US918692
申请日：1992-07-27
CPC分类号： B41J2/14209
摘要： In a droplet ejecting device capable of being driven at a low voltage and having a simple structure with low manufacturing costs, the droplet ejecting device has multiple ejectors each for changing a pressure of ink held in an ink passage by the use of a pressure generator so as to eject the ink held in the ink passage through an ejection port. The ejection ports comprise a slit disposed across the multiple ink passages and the slit is formed into a tapered cross section thereby eliminating a required process for manufacturing the same number of tapered ejection ports as that of ink passages in the prior art. Therefore, it is possible to reduce the number of manufacturing processes, manufacturing costs, and a driving voltage.
摘要翻译： 在能够以低电压驱动并具有制造成本低的简单结构的液滴喷射装置中，液滴喷射装置具有多个喷射器，每个喷射装置用于通过使用压力发生器来改变保持在油墨通道中的油墨的压力， 以便通过喷射口喷射保持在墨水通道中的墨水。 喷射口包括跨越多个油墨通道设置的狭缝，并且狭缝形成为锥形横截面，从而消除了与现有技术中的油墨通道相同数量的锥形排出口的制造所需的处理。 因此，可以减少制造工艺的数量，制造成本和驱动电压。
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公开(公告)号：US5363133A
公开(公告)日：1994-11-08
申请号：US866450
申请日：1992-04-10
CPC分类号： B41J2/1623 , B41J2/14209 , B41J2/1609 , B41J2/1632
摘要： In the ink droplet jet device of the present invention having a plurality of jet units for jetting an ink in an ink channel from jet nozzles formed on a nozzle plate by changing a volume in the ink channel by using a piezoelectric transducer, two plates are bonded for forming the ink channel. Two piezoelectric ceramic plates having grooves whose widths are larger than widths of the ink channel are provided. Alternatively, one piezoelectric ceramic plate and non-piezoelectric materials can be provided on which the same grooves are formed. When the interval between adjoining ink channels becomes very small to enable an increase in a number of jet nozzles communicating with the ink channels in order to make an image formed by the jetted ink droplet an image of high resolution, the groove processing of the piezoelectric ceramic plate is facilitated because the width of grooves to be ground is very wide in comparison with a conventional device, thereby reducing manufacturing cost.
摘要翻译： 在本发明的墨滴喷射装置中，具有多个喷射单元，用于通过使用压电换能器改变墨通道中的体积，从形成在喷嘴板上的喷嘴喷射油墨的墨水，将两个板接合 用于形成墨水通道。 设置两个具有宽度大于墨水通道宽度的凹槽的压电陶瓷板。 或者，可以提供一个压电陶瓷板和非压电材料，在其上形成相同的凹槽。 当相邻墨水通道之间的间隔变得非常小以能够增加与墨水通道连通的喷嘴的数量，以便通过喷射墨滴形成的图像成为高分辨率的图像时，压电陶瓷的凹槽处理 由于与传统装置相比，待研磨的槽的宽度非常宽，因此减少了制造成本。
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公开(公告)号：US5410341A
公开(公告)日：1995-04-25
申请号：US848695
申请日：1992-03-09
CPC分类号： B41J2/1632 , B41J2/14209 , B41J2/1609 , B41J2/1623 , B41J2/1626 , B41J2/1634 , B41J2/1646 , B41J2002/14362
摘要： A droplet jet device for use in an ink jet printer. The device has a bottom ceramics plate into which parallel grooves for storing ink are cut. A covering plate is either fixedly or slidably mounted over the grooved side of the ceramic plate to enclose the grooves. The sidewalls of the grooves have electrodes mounted thereon. One end of each groove is connected to an opening serving as an ink jet and the other end is connected to a ink source. The ink jets may be smaller grooves connecting the grooves to a print face of the bottom ceramics plate or may be ends of smaller grooves in the cover plate, one of the smaller grooves in the cover plate partially overlapping a corresponding groove in the ceramics base plate. When a current is applied to selected electrodes, the associated walls are deformed by a piezoelectric effect to compress the groove and eject an ink droplet from the ink jet.
摘要翻译： 一种用于喷墨打印机的液滴喷射装置。 该装置具有底部陶瓷板，切割用于储存油墨的平行槽。 盖板可以固定地或可滑动地安装在陶瓷板的槽侧上以封闭凹槽。 槽的侧壁具有安装在其上的电极。 每个凹槽的一端连接到用作喷墨口的开口，另一端连接到墨源。 喷墨喷嘴可以是将凹槽连接到底部陶瓷板的印刷面的较小凹槽，或者可以是盖板中较小凹槽的端部，盖板中的较小凹槽中的一个部分地与陶瓷基板中的相应凹槽重叠 。 当电流施加到所选择的电极时，通过压电效应使相关的壁变形，以压缩凹槽并从喷墨喷射墨滴。
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公开(公告)号：US5302976A
公开(公告)日：1994-04-12
申请号：US888793
申请日：1992-05-27
CPC分类号： B41J2/14209
摘要： An ink droplet ejection array is assembled by a piezoelectric transducer and a plate member. The piezoelectric transducer has a surface formed with a plurality of ribs which define a plurality of grooves. The plate member is attached to the surface of the piezoelectric transducer to cover the grooves and to thus define a plurality of ink channels. Ink contained in the ink channel is ejected when the volume of the ink channel is instantaneously reduced resulting from deformation of the associated ribs. The plate member is flexible to the deformation of the ribs so as not to restrain the deformation thereof.
摘要翻译： 墨滴喷射阵列由压电换能器和板构件组装。 压电换能器具有形成有限定多个凹槽的多个肋的表面。 板构件附接到压电换能器的表面以覆盖凹槽并因此限定多个墨通道。 当油墨通道的体积由于相关肋的变形而瞬间减少时，油墨通道中所含的油墨被喷射。 板构件对于肋的变形是柔性的，以便不抑制其变形。
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公开(公告)号：US5266964A
公开(公告)日：1993-11-30
申请号：US756982
申请日：1991-09-09
CPC分类号： B41J2/14209 , B41J2002/14217 , B41J2002/14225 , Y10T29/42 , Y10T29/49401
摘要： In a piezoelectric ink jet printer head having a laminated piezoelectric layer, actuating voltage is applied between only electrodes corresponding to a selected jetting device. A part of the piezoelectric ceramic layers between the electrodes is deformed in accordance with a slip effect, to jet ink from the selected jetting device. Since the polarization direction of the piezoelectric ceramic layers is almost perfectly perpendicular to the direction of an actuating electric field, the actuating voltage can be reduced. Further, piezoelectric ceramic layers can be stacked to obtain the necessary strength of a laminated piezoelectric element without decreasing the displacement amount. Thus, the reliability of the laminated piezoelectric element is enhanced. Moreover, the insulation of the electrodes is not deteriorated by a short circuit, migration of silver or the like. Such properties as durability and moisture resistance are also enhanced. Therefore, the printer head of the invention requires no components for preventing the deterioration of the insulation needed for prior art printer heads. The printer head can be thus made compact and lightweight, reducing the manufacturing cost.
摘要翻译： 在具有层叠压电层的压电喷墨打印机头中，在对应于所选择的喷射装置的仅电极之间施加致动电压。 电极之间的压电陶瓷层的一部分根据滑动效应而变形，从所选择的喷射装置喷射墨水。 由于压电陶瓷层的极化方向几乎完全垂直于致动电场的方向，所以可以降低致动电压。 此外，可以堆叠压电陶瓷层以获得层压型压电元件所需的强度，而不会降低位移量。 因此，层压型压电元件的可靠性提高。 此外，电极的绝缘不会由于短路，银的迁移等而劣化。 耐久性和耐湿性等特性也得到提高。 因此，本发明的打印头不需要用于防止现有技术的打印头所需绝缘的劣化的部件。 因此，打印机头可以制造得紧凑和重量轻，从而降低制造成本。
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公开(公告)号：US5245244A
公开(公告)日：1993-09-14
申请号：US852542
申请日：1992-03-17
CPC分类号： B41J2/14209 , B41J2/1609 , B41J2/1632 , B41J2/1637 , B41J2/164 , B41J2202/11
摘要： A piezoelectric ink droplet ejecting device drivable with a low voltage, simple in structure, less costly to manufacture and capable of producing printed data with high resolution. A piezoelectric ink droplet ejecting device has a plurality of ink ejectors each composed of a piezoelectric transducer for varying the volume of an ink passage to eject ink out of the ink passage. A single piezoelectric ceramic panel which is polarized in a thickness direction has a plurality of through holes parallel to the polarized direction. The through holes serve as ink passages. When a driving electric field is applied in a direction perpendicular to the polarized direction, the piezoelectric ceramic panel is elastically deformed under thickness shear effect, thus varying the volume of the ink passages to eject ink droplets therefrom.
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