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    • 1. 发明授权
    • Anti-outgassing ink composition and method for using the same
    • 防冒气油墨组合物及其使用方法
    • US6056396A
    • 2000-05-02
    • US918851
    • 1997-08-26
    • Donald E. Wenzel
    • Donald E. Wenzel
    • B41J2/19C09D11/00B41J2/01
    • C09D11/38B41J2/19
    • An anti-outgassing ink composition and method for using the same. The ink composition consists of an ink vehicle, a coloring agent, and an anti-outgassing additive. The additive prevents the outgassing of dissolved gases from the ink composition (e.g. in the form of gas bubbles) at temperatures generated within thermal printers (about 25-80.degree. C.). The additive accomplishes this goal by increasing the solubility of the gas in the ink composition. As a result, the continuous and uninterrupted flow of ink from the ink delivery system is achieved. A preferred additive consists of ethoxylated glycerol. The additive is used in an amount sufficient to control bubble formation. A typical ink composition will contain about 2-12% by weight additive. Use of the ink composition provides numerous benefits which are achieved without physical modifications to the printing hardware.
    • 一种防放气油墨组合物及其使用方法。 油墨组合物由油墨载体,着色剂和防止除气添加剂组成。 在热敏打印机(约25-80℃)内产生的温度下,添加剂防止从油墨组合物中溶解的气体(例如以气泡的形式)释气。 添加剂通过增加气体在油墨组合物中的溶解度来实现这一目标。 结果,实现了来自墨水输送系统的墨水的连续且不间断的流动。 优选的添加剂由乙氧基化甘油组成。 添加剂的用量足以控制气泡形成。 典型的油墨组合物将含有约2-12%重量的添加剂。 油墨组合物的使用提供了许多益处,其在没有对印刷硬件的物理修饰的情况下实现。
    • 2. 发明授权
    • Dye preparation for thermal ink-jet printheads using ion exchange
    • 用于使用离子交换的热喷墨打印头的染料准备
    • US4786327A
    • 1988-11-22
    • US912868
    • 1986-09-29
    • Donald E. WenzelLoren E. JohnsonHiang P. Lauw
    • Donald E. WenzelLoren E. JohnsonHiang P. Lauw
    • B41J2/01C09B67/54C09D11/00C09D11/02
    • C09D11/328C09B67/0096
    • A process is provided for reducing the crusting propensity of dyes, complexed with sodium or other cations, used in ink-jet print heads and for improving other properties of such dyes. The process comprises replacing at least a portion of the cations on such dyes with preselected cations, such as those of the alkali metals lithium, potassium, ammonium, and amines. A two-step process may be used, in which the sodium cations first are at least partially replaced with hydrogen cations by passing an aqueous solution of the dye through the hydrogen form of a strong acid ion exchange resin and the hydrogen cations subsequently are at least partially replaced with the preselected cations by neutralizing the hydrogen-containing dye solution with a base which contains the preselected cation species. Alternately, a one-step process, comprising passing the aqueous solution of the dye through an ion-exchange resin pre-loaded with the preselected cations may be employed.
    • 提供了一种方法,用于降低用于喷墨打印头中的与钠或其它阳离子络合的染料的结皮倾向并改善这些染料的其它性质。 该方法包括用预选的阳离子(例如碱金属锂,钾,铵和胺的阳离子)代替这些染料上的至少一部分阳离子。 可以使用两步法,其中钠阳离子首先通过使染料的水溶液通过强酸离子交换树脂的氢形式至少部分地被氢阳离子代替,并且氢阳离子随后至少是 通过用含有预选阳离子种类的碱中和含氢染料溶液部分地被预选阳离子代替。 或者,可以采用一步法,包括使染料的水溶液通过预加载有预选阳离子的离子交换树脂。
    • 5. 发明授权
    • Method and apparatus for ink drop trajectory control
    • 墨滴轨迹控制方法和装置
    • US5808637A
    • 1998-09-15
    • US451788
    • 1995-05-26
    • Donald E. WenzelDavid E. Hackleman
    • Donald E. WenzelDavid E. Hackleman
    • B41J2/05B41J2/10B41J2/11
    • B41J2/04526B41J2/0458B41J2/10B41J2/11
    • A ferromagnetic ink is formed by a dispersion of ferromagnetic particles mixed with an ink base. Drops of the ink are ejected from an inkjet printhead to print characters or markings onto a print media sheet. To resist clogging printhead nozzles, the dispersed ferromagnetic particles have an average diameter equal to or less than approximately 1/10 of the average nozzle diameter. A magnetic field is applied to the ejected ink drops during printing to direct, or more specifically bias, the ink drops toward the print media. The magnetic "biasing" force aids in maintaining drop shape along the ejection path, and in reducing bounce. As a result, edge roughness and spray are decreased so as to improve print quality. In alternative embodiments, the magnetic field source is formed by a permanent magnet or electromagnet. Such a field source is integral to or adjacent to a printer platen. The field source is located adjacent to the printhead and in several embodiments extends along the scan path of the printhead. In one embodiment the field source is formed on the ink cartridge.
    • 通过与油墨基体混合的铁磁性颗粒的分散体形成铁磁性油墨。 墨水滴从喷墨打印头喷出以将字符或标记打印到打印介质片上。 为了防止打印头喷嘴堵塞,分散的铁磁颗粒的平均直径等于或小于平均喷嘴直径的大约+ E,fra 1/10 + EE。 在打印期间将磁场施加到喷射的墨滴,以指示墨滴朝向打印介质,或更具体地偏压墨滴。 磁“偏置”力有助于沿喷射路径保持液滴形状,并且减少反弹。 结果,边缘粗糙度和喷雾量降低,从而提高打印质量。 在替代实施例中,磁场源由永磁体或电磁体形成。 这样的场源与打印机压板成一体或相邻。 场源位于与打印头相邻的位置,并且在若干实施例中沿打印头的扫描路径延伸。 在一个实施例中,场源形成在墨盒上。
    • 6. 发明授权
    • Valve for ink-jet pen
    • 喷墨笔阀
    • US5341160A
    • 1994-08-23
    • US687549
    • 1991-04-17
    • Thomas H. WinslowPaul H. McClellandDonald E. Wenzel
    • Thomas H. WinslowPaul H. McClellandDonald E. Wenzel
    • B41J2/05B41J2/175B41J2/055
    • B41J2/17513B41J2/17596Y10T137/0874Y10T137/4643
    • An ink-jet pen for storing at below-ambient pressure has an orifice formed therein for providing air bubbles to prevent the back pressure from rising above a level that would cause malfunction of the pen. The amount of air drawn into the reservoir is restricted by the reservoir ink that covers the orifice whenever the pen is in an upright position. The valve operates to occlude the orifice whenever the pen is moved into a position, such as inverted, where the reservoir ink no longer covers the orifice. The occlusion of the orifice prevents the unrestricted flow of ambient air into the reservoir that would otherwise eliminate the required back pressure in the reservoir. The valve includes a sealing liquid selected so that the liquid occludes a passage between the orifice and ambient air without flowing through that passage.
    • 用于在低于环境压力下存储的喷墨笔具有形成在其中的孔口,用于提供气泡以防止背压升高到将导致笔误动作的水平。 当笔处于直立位置时,吸入储存器的空气量受到覆盖孔口的贮存器油墨的限制。 只要笔移动到诸如倒置的位置,其中储存器墨水不再覆盖孔口,阀就操作以闭塞孔口。 孔口的阻塞防止环境空气进入储存器的不受限制的流动,否则将消除储存器中所需的背压。 阀包括选择的密封液体,使得液体封闭孔和环境空气之间的通道,而不流过该通道。
    • 7. 发明授权
    • Printing system with air accumulation control means enabling a semipermanent printhead without air purge
    • 具有空气积聚控制的打印系统意味着无需空气吹扫即可实现半永久性打印头
    • US06203146B1
    • 2001-03-20
    • US09037550
    • 1998-03-09
    • Norman E Pawlowksi, Jr.Mark HauckJohn BarinagaDonald E Wenzel
    • Norman E Pawlowksi, Jr.Mark HauckJohn BarinagaDonald E Wenzel
    • B41J2175
    • B41J2/17556B41J2/17509B41J2/17523
    • Disclosed is an inkjet printing system including a semipermanent printhead having a fluid input for receiving ink and an ejection portion for depositing ink in response to control signals. The printing system also includes a replaceable ink supply configured for providing ink to the printhead that stores an ink volume. The printhead is capable of lasting throughout the life of a plurality of the ink volumes. The printing system includes a fluid accumulator portion in fluid communication with the printhead and the replaceable ink supply. The fluid accumulator is adapted to accommodate the air introduced into the printhead during the usage of the ink supplies without purging air from the printhead. Also disclosed is an ink delivery apparatus that fluidically couples to the fluid input and provides ink to the printhead. This ink delivery apparatus is adapted to control air introduction to the printhead such that the accumulator portion can accommodate all air introduced during the life the printhead.
    • 公开了一种喷墨打印系统,其包括具有用于接收墨的流体输入的半永久性打印头和用于响应于控制信号而沉积墨的喷射部分。 打印系统还包括被配置为向存储墨水量的打印头提供墨水的可替换墨水供应。 打印头能够在多个墨水体积的整个寿命期间持续。 打印系统包括与打印头和可替换墨水供应流体连通的流体储存器部分。 流体蓄积器适于在使用墨水供应期间容纳引入打印头的空气,而不会从打印头吹扫空气。 还公开了一种墨水输送装置,其流体耦合到流体输入并向打印头提供墨水。 该油墨输送装置适于控制对打印头的空气引入,使得储存器部分可以适应打印头寿命期间引入的所有空气。
    • 9. 发明授权
    • Ink-delivery apparatus
    • 送墨装置
    • US5473354A
    • 1995-12-05
    • US258270
    • 1994-05-26
    • Dan ArquilevichDonald E. Wenzel
    • Dan ArquilevichDonald E. Wenzel
    • B41J2/175
    • B41J2/175
    • A thin sleeve covering multiple, flexible ink-delivery tubes connecting ink sources to a reciprocable carriage-mounted printhead in an ink-jet printer is sealed around each tube preventing any tube from physically interacting with any other tube. The sleeve provides structural support for the tubes and eliminates entangling of the tubes. In addition, the sleeve can minimize the unwanted diffusion or evaporation of volatile ink constituents through the tubes' sidewalls by maintaining an equilibrious condition on either side of the tubes' sidewalls between the ink inside tube and the diffused volatile ink constituents that are disposed outside the tube but contained inside the sleeve.
    • 覆盖多个柔性墨水输送管的薄套管将墨源连接到喷墨打印机中的可往复运动的支架安装的打印头被密封在每个管周围,防止任何管与任何其它管体物理相互作用。 套筒为管提供结构支撑,并消除管的纠缠。 此外,套筒可以通过在油墨内管之间的管的侧壁和扩散的挥发性油墨组分之间保持平衡状态来使挥发性油墨组分通过管的侧壁的不希望的扩散或蒸发最小化, 管,但包含在套筒内。