Reliable high performance drop generator for an inkjet printhead
    1.
    发明授权
    Reliable high performance drop generator for an inkjet printhead 失效
    用于喷墨打印头的可靠的高性能液滴发生器

    公开(公告)号:US5874974A

    公开(公告)日:1999-02-23

    申请号:US608376

    申请日:1996-02-28

    摘要: An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink firing element), on the order of 55 microns, provides a very high speed refill. However, it is a characteristic of high speed refill that it has a tendency for being overdamped. To provide the requisite damping, the ink should have a viscosity greater than about 2 cp. In this way, the ink and architecture work together to provide a tuned system that enables stable operation at high frequencies. One advantage of the combination of a pigment and a dispersant in the ink is the resultant higher viscosity provided. The high speed would be of little value if the ink did not have a fast enough rate of drying. This is accomplished by the addition of alcohols or alcohol(s) and surfactant(s) to the ink. Fast dry times are achieved with a combination of alcohols, such as isopropyl alcohol with a 4 or 5 carbon alcohol or with iso-propyl alcohol plus surfactant(s). One preferred embodiment of a short shelf (90 to 130 microns), ink viscosity of about 3 cp, and surface tension of about 54 provides a high speed drop generator capable of operating at about 12 KHz. Reducing the shelf length to about 55 microns, in combination with rotating the substrate at an angle to the scan direction, permits maximum drop generator operation as high as about 20 KHz. As a consequence of employing pigment-based inks, high optical densities are realized, along with excellent permanence (no fade and better waterfastness), and good stability. The combination of preferred ink and pen architecture provides good drop generator stability.

    摘要翻译: 喷墨墨滴喷射系统包括打印头部件和油墨的组合,其相互调节以最大化打印头的操作特性以及油墨的打印质量和干燥时间。 使用大约55微米的短搁架(墨水源到墨水喷射元件的距离)提供了非常高的速度补充。 然而,它具有高速补充的特点,它具有过度阻尼的倾向。 为了提供必要的阻尼,油墨的粘度应大于约2cp。 以这种方式,墨水和结构共同工作,提供了一个可在高频下稳定运行的调谐系统。 油墨中颜料和分散剂的组合的一个优点是得到较高的粘度。 如果墨水没有足够的干燥速度,高速度就没有什么价值。 这通过向油墨中加入醇或醇和表面活性剂来实现。 快速干燥时间通过醇,例如异丙醇与4或5个碳醇或与异丙醇加表面活性剂的组合来实现。 短架(90-130微米),油墨粘度约为3cp,表面张力约为54的一个优选实施例提供了能够在约12KHz下操作的高速液滴发生器。 将搁板长度减小至约55微米,与基板以扫描方向成一定角度的旋转结合使得最大的液滴发生器运转高达约20KHz。 作为使用颜料基油墨的结果,实现了高的光密度,以及优异的耐久性(不褪色和更好的耐水性)和良好的稳定性。 优选的墨水和笔结构的组合提供了良好的液滴发生器稳定性。

    Surfactant for inkjet service station wiper fluid
    3.
    发明授权
    Surfactant for inkjet service station wiper fluid 失效
    喷墨维修站刮水器表面活性剂

    公开(公告)号:US06378981B1

    公开(公告)日:2002-04-30

    申请号:US09552133

    申请日:2000-04-19

    IPC分类号: B41J2165

    CPC分类号: B41J2/16552

    摘要: A service station wiper fluid in an inkjet ink printing system, which in addition to the servicing fluid, also has a surfactant which improves the surface energy consistency of the nozzle plate, thus stabilizing the drop directionality of the ink from inkjet nozzle to the print media.

    摘要翻译: 除了维修流体之外,喷墨油墨印刷系统中的维修站刮水器流体还具有改善喷嘴板的表面能量一致性的表面活性剂,从而稳定了墨水从喷墨喷嘴到打印介质的落下方向性 。

    Pinch point angle variation among multiple nozzle feed channels
    4.
    发明授权
    Pinch point angle variation among multiple nozzle feed channels 失效
    多个喷嘴进料通道之间的夹点角度变化

    公开(公告)号:US06042222A

    公开(公告)日:2000-03-28

    申请号:US921217

    申请日:1997-08-27

    IPC分类号: B41J2/14 B41J2/05

    CPC分类号: B41J2/1404 B41J2002/14387

    摘要: An inkjet printhead includes multiple printing elements grouped in sets about an ink refill channel. Each printing element includes a nozzle chamber and firing resistor. Respective nozzle chambers are located at a staggered distance away from the ink refill channel. A printing element's feed channel couples its nozzle chamber to the ink refill channel. A pinch point defined by barrier walls occurs along the feed channel. Converging and diverging half angles for each barrier wall of a given printing element are the same. Such angles differ among a plurality of printing elements. The specific angle for a given printing element defines where along the feed channel the pinch point occurs. The specific angle is prescribed according to the distance from a given printing element's firing resistor to the ink refill channel. A certain angle is used for a certain resistor stagger position to provide ink refill balancing among printing elements.

    摘要翻译: 喷墨打印头包括关于墨水补充通道成组的多个打印元件。 每个印刷元件包括喷嘴室和点火电阻器。 相应的喷嘴室位于距离墨水补充通道交错的距离处。 打印元件的馈送通道将其喷嘴室连接到墨水补充通道。 由阻挡壁限定的夹点沿馈送通道发生。 给定印刷元件的每个阻挡壁的会聚和发散的半角是相同的。 这些角度在多个打印元件之间是不同的。 给定印刷元件的特定角度定义了沿着进给通道发生夹点的位置。 根据从给定的打印元件的点火电阻到墨水补充通道的距离来规定特定角度。 一定角度用于某个电阻器交错位置,以提供打印元件之间的墨水补充平衡。

    Reliable high performance drop generator for an inkjet printhead
    5.
    发明授权
    Reliable high performance drop generator for an inkjet printhead 失效
    用于喷墨打印头的可靠的高性能液滴发生器

    公开(公告)号:US5946012A

    公开(公告)日:1999-08-31

    申请号:US90968

    申请日:1998-06-04

    IPC分类号: B41J2/05 B41J2/14 B41J2/16

    摘要: An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink firing element), on the order of 55 microns, provides a very high speed refill. However, it is a characteristic of high speed refill that it has a tendency for being over-damped. To provide the requisite damping, the ink should have a viscosity greater than about 2 cp. In this way, the ink and architecture work together to provide a tuned system that enables stable operation at high frequencies. One advantage of the combination of a pigment and a dispersant in the ink is the resultant higher viscosity provided. The high speed would be of little value if the ink did not have a fast enough rate of drying. This is accomplished by the addition of alcohols or alcohol(s) and surfactant(s) to the ink. Fast dry times are achieved with a combination of alcohols, such as iso-propyl alcohol with a 4 or 5 carbon alcohol or with iso-propyl alcohol plus surfactant(s). One preferred embodiment of a short shelf (90 to 130 microns), ink viscosity of about 3 cp, and surface tension of about 54 provides a high speed drop generator capable of operating at about 12 KHz. Reducing the shelf length to about 55 microns, in combination with rotating the substrate at an angle to the scan direction, permits maximum drop generator operation as high as about 20 KHz. As a consequence of employing pigment-based inks, high optical densities are realized, along with excellent permanence (no fade and better waterfastness), and good stability. The combination of preferred ink and pen architecture provides good drop generator stability.

    摘要翻译: 喷墨墨滴喷射系统包括打印头部件和油墨的组合,其相互调节以最大化打印头的操作特性以及油墨的打印质量和干燥时间。 使用大约55微米的短搁架(墨水源到墨水喷射元件的距离)提供了非常高的速度补充。 然而,高速补充的特征是它具有过度阻尼的倾向。 为了提供必要的阻尼,油墨的粘度应大于约2cp。 以这种方式,墨水和结构共同工作,提供了一个可在高频下稳定运行的调谐系统。 油墨中颜料和分散剂的组合的一个优点是得到较高的粘度。 如果墨水没有足够的干燥速度,高速度就没有什么价值。 这通过向油墨中加入醇或醇和表面活性剂来实现。 快速干燥时间是通过醇,如异丙醇与4或5碳醇或与异丙醇加表面活性剂的组合来实现的。 短架(90-130微米),油墨粘度约为3cp,表面张力约为54的一个优选实施例提供了能够在约12KHz下操作的高速液滴发生器。 将搁板长度减小至约55微米,与基板以扫描方向成一定角度的旋转结合使得最大的液滴发生器运转高达约20KHz。 作为使用颜料基油墨的结果,实现了高的光密度,以及优异的耐久性(不褪色和更好的耐水性)和良好的稳定性。 优选的墨水和笔结构的组合提供了良好的液滴发生器稳定性。

    Ink channel structure for inkjet printhead
    6.
    发明授权
    Ink channel structure for inkjet printhead 失效
    喷墨打印头的墨水通道结构

    公开(公告)号:US5594481A

    公开(公告)日:1997-01-14

    申请号:US319893

    申请日:1994-10-06

    摘要: Disclosed is an inkjet print cartridge including an ink reservoir; a substrate having a plurality of individual ink firing chambers with an ink firing element in each chamber along a top surface of said substrate and having a first outer edge along a periphery of substrate; the first outer edge being in close proximity to the ink firing chambers. The ink firing chambers are arranged in a first chamber array and a second chamber array and with the firing chambers spaced so as to provide 600 dots per inch printing. An ink channel connects the reservoir with the ink firing chambers, the channel including a primary channel connected at a first end with the reservoir and at a second end to a secondary channel; the primary channel allowing ink to flow from the ink reservoir, around the first outer edge of the substrate to the secondary channel along the top surface of the substrate so as to be proximate to the ink firing chambers. A separate inlet passage defined by a barrier layer for each firing chamber connecting the secondary channel with the firing chamber for allowing high frequency refill of the firing chamber. The separate inlet passage for each firing chamber having peninsulas and pinch points formed in the barrier layer to prevent cross-talk and overshoot during high frequency operation. A group of the firing chambers in adjacent relationship forming a primitive in which only one firing chamber in said primitive is activated at a time. A first circuit on said substrate connect to the firing elements and a second circuit on the cartridge connect to the first circuit, for transmitting firing signals to the ink firing elements at a frequency greater than 9 kHz. The preferred configuration of the nozzle member, ink channels, and vaporization chambers allows a printing resolution of 600 dpi and a firing rate of greater than 9 kHz.

    摘要翻译: 公开了一种包括墨水储存器的喷墨打印墨盒; 基板,具有多个单独的油墨喷射室,沿着所述基板的顶表面在每个室中具有油墨点火元件,并具有沿着基板周边的第一外边缘; 第一外边缘靠近墨喷射室。 喷墨室布置在第一室阵列和第二室阵列中,并且喷射室间隔开以提供每英寸打印600点。 墨水通道将储存器连接到喷墨室,该通道包括在第一端与储存器连接的第一通道,在第二端连接到次级通道; 主要通道允许墨水从墨水储存器沿着基板的顶表面围绕基板的第一外边缘流动到第二通道,以便靠近墨水喷射室。 一个单独的入口通道,由阻挡层限定,用于每个点火室,将次级通道与燃烧室连接,以允许高频率再充填燃烧室。 每个喷射室的独立入口通道具有形成在阻挡层中的半岛和夹点,以防止高频操作期间的串扰和过冲。 一组相邻关系中的发射室形成一个原始图案,其中一次只激活所述图元中的一个发射室。 所述衬底上的第一电路连接到点火元件,并且盒上的第二电路连接到第一电路,用于以大于9kHz的频率将点火信号发送到喷墨元件。 喷嘴构件,墨水通道和蒸发室的优选构造允许600dpi的打印分辨率和大于9kHz的点火速率。

    Barrier feature in fluid channel
    7.
    发明授权
    Barrier feature in fluid channel 有权
    流体通道中的屏障特征

    公开(公告)号:US06896360B2

    公开(公告)日:2005-05-24

    申请号:US10285254

    申请日:2002-10-31

    IPC分类号: B41J2/14 B41J2/175 B41J2/05

    摘要: A fluid ejection device comprising a substrate having a first surface, and a fluid ejector formed over the first surface. A top layer is also formed over the first surface of the substrate and defines a chamber about the fluid ejector. The top layer also defines a fluid channel that directs fluid into the chamber. In one embodiment, a barrier feature is positioned within the fluid channel, and has a height that is less than the height of the fluid channel.

    摘要翻译: 一种流体喷射装置,包括具有第一表面的基底和在第一表面上形成的流体喷射器。 顶层也形成在衬底的第一表面上,并围绕流体喷射器限定一个腔室。 顶层还限定了将流体引导到腔室中的流体通道。 在一个实施例中,阻挡特征位于流体通道内,并且具有小于流体通道的高度的高度。

    Tuned entrance fang configuration for ink-jet printers
    10.
    发明授权
    Tuned entrance fang configuration for ink-jet printers 失效
    针对喷墨打印机调整入口方式配置

    公开(公告)号:US5519423A

    公开(公告)日:1996-05-21

    申请号:US272721

    申请日:1994-07-08

    摘要: A thermal ink-jet pen which includes a tuned printhead for ejecting droplets of ink onto a print medium is provided. The printhead comprises (a) a plurality of resistive elements, (b) a plurality of nozzles through which the droplets of ink are ejected, (c) a plurality of drop ejection chambers, (d) a plurality of ink feed channels, each provided with an entrance defined by a pair of projections on either side thereof, and (e) an ink refill slot operatively associated with the plurality of ink feed channels, the ink refill slot defined by an edge to provide a shelf from the edge to the ink feed channels. The plurality of resistive elements is divided into sets, with each resistive element staggered a different distance from the edge. Each ink feed channel within a set is provided with a different critical dimension value, the critical dimension comprising at least one selected from the group consisting of (1) width of entrance to channel, (2) width of the channel, (3) length of the channel, and (4) distance of the resistive element to the terminus of the channel. The critical dimension is related to distance of the resistive element from the edge. By providing each set of resistive elements with different widths, the damping of the pen is improved and all the nozzles have substantially the same refill speed.

    摘要翻译: 提供一种热喷墨笔,其包括用于将墨滴喷射到打印介质上的调谐打印头。 打印头包括(a)多个电阻元件,(b)多个喷嘴,喷墨墨滴通过该喷嘴,(c)多个墨滴喷射室,(d)多个墨供给通道, 具有由其任一侧上的一对突起限定的入口,和(e)与多个供墨通道可操作地相关联的墨补充槽,由边缘限定的墨补充槽,以从边缘向墨提供搁板 饲料渠道。 多个电阻元件被分成几组,每个电阻元件与边缘交错不同的距离。 一组中的每个供墨通道具有不同的临界尺寸值,临界尺寸包括选自以下的至少一个:(1)通道的入口宽度,(2)通道的宽度,(3)长度 ,(4)电阻元件到通道末端的距离。 临界尺寸与电阻元件与边缘的距离有关。 通过提供具有不同宽度的每组电阻元件,改善了笔的阻尼,并且所有喷嘴具有基本上相同的再填充速度。