Delivering mixed inks to an intermediate transfer roller
    1.
    发明授权
    Delivering mixed inks to an intermediate transfer roller 失效
    将混合油墨送入中间转印辊

    公开(公告)号:US6109746A

    公开(公告)日:2000-08-29

    申请号:US84665

    申请日:1998-05-26

    IPC分类号: B41J2/005 B41J2/01 G03G15/10

    CPC分类号: B41J2/0057

    摘要: A method for printing information on an image receiver includes metering and collecting amounts of different fluids which when mixed will provide an ink of a desired color; transferring the fluids to cells formed on a surface where they are mixed to provide an ink of a desired color; and transferring the ink from the cells to an image receiver.

    摘要翻译: 用于在图像接收器上打印信息的方法包括计量和收集不同流体的量,当混合时将提供所需颜色的墨; 将流体转移到在其混合的表面上形成的细胞以提供所需颜色的墨水; 并将墨从细胞转移到图像接收器。

    Deflection device including expansion and contraction regions
    2.
    发明授权
    Deflection device including expansion and contraction regions 有权
    变形装置包括扩张和收缩区域

    公开(公告)号:US07946691B2

    公开(公告)日:2011-05-24

    申请号:US12265146

    申请日:2008-11-05

    IPC分类号: B41J2/02 B41J2/07 B41J2/185

    CPC分类号: B41J2/09 B41J2002/031

    摘要: A method of printing and a printhead are provided. The printhead includes a nozzle array having a width; a gas flow source; and a gas flow duct in fluid communication with the gas flow source. The gas flow duct includes an expansion region and a compression region. The expansion region of the gas flow duct gradually expands along its cross sectional length to at least the width of the nozzle array. The compression region of the gas flow duct gradually contracts along its cross sectional length.

    摘要翻译: 提供了打印方法和打印头。 打印头包括具有宽度的喷嘴阵列; 气流源; 以及与气体流动源流体连通的气体流路。 气体流路包括膨胀区域和压缩区域。 气体流动管道的膨胀区域沿其截面长度逐渐扩大至至少喷嘴阵列的宽度。 气体流动管道的压缩区域沿其横截面长度逐渐收缩。

    Deflected drop liquid pattern deposition apparatus and methods
    3.
    发明授权
    Deflected drop liquid pattern deposition apparatus and methods 失效
    偏转滴液图案沉积装置及方法

    公开(公告)号:US07413293B2

    公开(公告)日:2008-08-19

    申请号:US11417458

    申请日:2006-05-04

    IPC分类号: B41J2/09

    摘要: Drop deflector apparatus and methods for a continuous drop emission system comprising a plurality of drop nozzles emitting a plurality of continuous streams of a liquid that break up into streams of drops of substantially uniform drop volume having nominal flight paths that are substantially within a nominal flight plane are disclosed. A plurality of path selection elements corresponding to the plurality of continuous streams of drops is provided operable to firstly deflect individual drops from the corresponding continuous stream of drops along a first deflection flight path diverging from the nominal flight path based on pattern data. A plurality of gas nozzles is provided which generate a plurality of localized gas flows, positioned along one of the first deflection flight paths or the nominal flight paths, wherein the localized gas flows are oriented so as to cause a substantial second deflection of one of the firstly deflected drops or the nominal drops in a direction perpendicular to the nominal flight plane without causing a substantial deflection of drops following the other of the first deflection flight paths or the nominal flight paths. Secondly deflected drops are captured before they impinge a receiver medium. An image pattern is thereby deposited by either firstly deflected or undeflected drops.

    摘要翻译: 用于连续液滴发射系统的液滴偏转装置和方法,包括多个滴液喷嘴,所述液滴喷嘴喷射出多个连续的液体流,其分解成基本上均匀滴落体积的液滴,其具有基本上在标称飞行平面内的标称飞行路径 被披露。 提供对应于多个连续的液滴流的多个路径选择元件,其可操作用于首先基于图案数据沿着从标称飞行路径发散的第一偏转飞行路径从相应的连续液滴流偏转各个液滴。 提供了多个气体喷嘴,其产生沿着第一偏转飞行路径或标称飞行路径中的一个定位的多个局部气流,其中局部气体流被定向成使得一个 首先在与标称飞行平面垂直的方向上偏转液滴或标称液滴,而不引起第一偏转飞行路径或标称飞行路径上的另一个之后的液滴的显着偏移。 其次,在撞击接收器介质之前捕获偏转的液滴。 因此,通过首先偏转或未偏转的液滴沉积图像图案。

    Ink-jet printing with reduced cross-talk
    4.
    发明授权
    Ink-jet printing with reduced cross-talk 有权
    喷墨打印减少了串扰

    公开(公告)号:US06923529B2

    公开(公告)日:2005-08-02

    申请号:US10035902

    申请日:2001-12-26

    IPC分类号: B41J2/03 B21J2/07

    摘要: An ink jet printer having an array of nozzles from which ink droplets of adjustable volume are emitted further includes a mechanism adapted to individually adjust the volume of the emitted ink droplets. The mechanism has a first state wherein the emitted droplets of selected nozzles are of a predetermined small volume and a second state wherein the emitted droplets of selected nozzles are of a predetermined large volume. A controller selectively switches the mechanism between its first and its second states such that ink droplets of the predetermined large volume are not simultaneously emitted from adjacent ones of the nozzles.

    摘要翻译: 一种喷墨打印机,具有可喷射墨滴的喷嘴阵列,进一步包括适于独立地调节发射墨滴体积的机构。 机构具有第一状态,其中所选择的喷嘴的发射液滴具有预定的小体积,而第二状态,其中所选喷嘴的喷射液滴具有预定的大体积。 控制器选择性地在其第一状态和第二状态之间切换机构,使得预定大体积的墨滴不会从相邻的喷嘴同时发射。

    Apparatus and method for improving gas flow uniformity in a continuous stream ink jet printer
    5.
    发明授权
    Apparatus and method for improving gas flow uniformity in a continuous stream ink jet printer 失效
    用于改善连续流喷墨打印机中的气流均匀性的装置和方法

    公开(公告)号:US06866370B2

    公开(公告)日:2005-03-15

    申请号:US10156617

    申请日:2002-05-28

    摘要: A method of enhancing print quality of a continuous ink jet printing device and such a printing device in which selected droplets in a stream of droplets are selectively deflected to impinge on a print medium, the method including the steps of providing a plurality of ink droplets, each printing ink-droplet being substantially same size, providing a gas flow that deflects the plurality of ink droplets, monitoring uniformity of the gas flow, and adjusting a flow characteristic of the gas flow based on the monitored uniformity. The step of adjusting flow characteristic of the gas flow is attained by changing flow rate of the gas flow or flow area of the outlet. In one embodiment, the step of monitoring uniformity of gas flow includes monitoring trajectory paths of the deflected plurality of ink droplets.

    摘要翻译: 一种提高连续喷墨打印装置和这种打印装置的打印质量的方法,其中液滴流中的选定液滴被选择性地偏转以撞击在打印介质上,该方法包括以下步骤:提供多个墨滴, 每个印刷墨滴基本上相同的尺寸,提供使多个墨滴偏转的气流,监测气流的均匀性,以及基于所监测的均匀性来调节气流的流动特性。 调整气流的流量特性的步骤是通过改变气流或出口流动面积的流量来实现的。 在一个实施例中,监测气流的均匀性的步骤包括监测偏转的多个墨滴的轨迹路径。

    Active compensation for changes in the direction of drop ejection in an inkjet printhead
    6.
    发明授权
    Active compensation for changes in the direction of drop ejection in an inkjet printhead 失效
    有效补偿喷墨打印头中液滴喷射方向的变化

    公开(公告)号:US06561616B1

    公开(公告)日:2003-05-13

    申请号:US09696536

    申请日:2000-10-25

    IPC分类号: B41J2015

    摘要: For an inkjet printhead (10) with integral compensation for misdirection of ink drops (37) ejected through at least one nozzle (24) of the printhead (10), a system and method of modifying the nozzle cavity space (32a) so as to compensate for the effects of defects in the printhead (10) by altering the direction the ejected ink drops (37). The inkjet printhead (10) comprises at least one reservoir (28) integrated within the membrane (30). The inkjet printhead (10) also comprises a channel (38) extending from the reservoir (28) and terminating in the nozzle cavity (32). A hardening substance (40) within the reservoir (28) and channel (38) is a plastic material having a high thermal expansion coefficient. An internal heater (48) within the reservoir (28) and adjacent the hardening substance (40) is adapted to cause the plastic material (40) to flow in order to form a protrusion (44) of plastic material (40) within the nozzle cavity space (32a). Alternatively, the plastic material (40) can be recessed within the channel (38). Thus, the hardening substance (40) is adapted to internally alter the nozzle cavity space (32a) and cause ink (34) ejected from the nozzle opening (26) to be deflected with regard to a desired amount of compensation.

    摘要翻译: 对于对通过打印头(10)的至少一个喷嘴(24)喷射的墨滴(37)的错误定向的整体补偿的喷墨打印头(10),一种改变喷嘴腔空间(32a)的系统和方法, 通过改变喷射的墨滴(37)的方向来补偿打印头(10)中的缺陷的影响。 喷墨打印头(10)包括集成在膜(30)内的至少一个贮存器(28)。 喷墨打印头(10)还包括从储存器(28)延伸并终止于喷嘴腔(32)中的通道(38)。 储存器(28)和通道(38)内的硬化物质(40)是具有高热膨胀系数的塑料材料。 在储存器(28)内并与硬化物质(40)相邻的内部加热器(48)适于使塑料材料(40)流动,以在喷嘴内形成塑料材料(40)的突起(44) 空腔(32a)。 或者,塑料材料(40)可以凹入通道(38)内。 因此,硬化物质(40)适于在内部改变喷嘴腔空间(32a)并使得从喷嘴开口(26)喷出的油墨(34)相对于期望的补偿量而偏转。

    Printhead having gas flow ink droplet separation and method of diverging ink droplets

    公开(公告)号:US06554410B2

    公开(公告)日:2003-04-29

    申请号:US09750946

    申请日:2000-12-28

    IPC分类号: B41J209

    摘要: An apparatus for printing an image is provided. The apparatus includes an ink droplet forming mechanism operable to selectively create a stream of ink droplets having a plurality of volumes and a droplet deflector having a gas source. The gas source is positioned at an angle with respect to the stream of ink droplets and is operable to interact with the stream of ink droplets thereby separating ink droplets having one of the plurality of volumes from ink droplets having another of the plurality of volumes. The ink droplet producing mechanism has a nozzle and includes a heater positioned proximate to the nozzle. The heater may be selectively actuated at a plurality of frequencies to create the stream of ink droplets having the plurality of volumes. The heater may include an electrical resistance heating element. The gas source may be a positive pressure air source positioned substantially perpendicular to the stream of ink droplets.

    Continuous ink jet printer with binary electrostatic deflection
    8.
    发明授权
    Continuous ink jet printer with binary electrostatic deflection 失效
    连续喷墨打印机具有二进制静电偏转

    公开(公告)号:US06509917B1

    公开(公告)日:2003-01-21

    申请号:US08953610

    申请日:1997-10-17

    IPC分类号: B41J2105

    摘要: Apparatus and process for controlling ink in a continuous ink jet printer in which a continuous stream of ink is emitted from a nozzle includes a droplet generator which causes the stream to break up into a plurality of droplets with an adjustable drop break off position having at least (1) a first drop break off position spaced from the nozzle and (2) a second drop break off position spaced from the first drop break off position. A stream deflector adjacent to the stream between the first drop break off position and the second drop break off position controls the direction of the stream between a print direction and a non-print direction. A charging apparatus is associated with the ink delivery channel to electrically charge the ink stream. The stream deflector includes at least one deflection electrode; and a deflection control circuit is adapted to apply a constant DC voltage to the deflection electrode to deflect droplets from one of the print and non-print directions to the other of the print and non-print directions.

    摘要翻译: 用于控制连续喷墨打印机中的油墨的设备和方法,其中从喷嘴喷射连续的墨水流包括液滴发生器,其使流分解成多个液滴,具有至少具有可调节的脱落位置 (1)与喷嘴间隔开的第一分液分离位置和(2)与第一液滴脱离位置间隔开的第二液滴分离位置。 在第一液滴分离位置和第二液滴分离位置之间的与流体相邻的液流偏转器控制流体在打印方向和非打印方向之间的方向。 充电装置与油墨输送通道相关联,以对墨水流充电。 流偏转器包括至少一个偏转电极; 并且偏转控制电路适于对偏转电极施加恒定的DC电压,以将液滴从打印方向和非打印方向之一偏转到打印方向和非打印方向中的另一方向。

    Phase shifts for two groups of nozzles
    9.
    发明授权
    Phase shifts for two groups of nozzles 有权
    两组喷嘴的相移

    公开(公告)号:US08104878B2

    公开(公告)日:2012-01-31

    申请号:US12613712

    申请日:2009-11-06

    IPC分类号: B41J2/02

    摘要: A method includes forming drops of first size by applying drop-forming pulses during unit time period, τ0; forming drops of second size by applying drop-forming pulses during second size drop time period, τm, wherein the second sized drop time period is a multiple, m, of the unit time period, τm=m*τ0, and m≧2; providing timing between drops for printing consecutive pixels is equal to τi=a*τ0 where a is an integer ≧m and is a function of print media speed; forming the corresponding plurality of drop forming pulse sequences so as to form non-print drops and print drops according to the liquid pattern data; delaying the timing of the drop forming pulses sent to the transducers of the second group relative to the drop forming pulses sent to the transducers of the first group by a delay time τL which is approximately equal to τi/2.

    摘要翻译: 一种方法包括通过在单位时间段τ0期间施加液滴形成脉冲来形成第一尺寸的液滴; 通过在第二尺寸下降时间段τm期间施加液滴形成脉冲来形成第二尺寸的液滴,其中第二大小的下降时间周期是单位时间周期的倍数,m,mm,τ0和m≥2; 提供用于打印连续像素的液滴之间的定时等于τi= a *τ0,其中a是≧m的整数,并且是打印介质速度的函数; 形成相应的多个液滴形成脉冲序列,以便根据液体图案数据形成非印刷液滴和印刷液滴; 将发送到第二组的换能器的液滴形成脉冲的定时相对于发送到第一组的换能器的液滴形成脉冲延迟大约等于τi/ 2的延迟时间τL。