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    • 3. 发明授权
    • Replenishable coating for printhead nozzle plate
    • 打印头喷嘴板可补充涂层
    • US06364456B1
    • 2002-04-02
    • US09470809
    • 1999-12-22
    • Zhihao YangRavi SharmaThomas L. Penner
    • Zhihao YangRavi SharmaThomas L. Penner
    • B41J241
    • B82Y30/00B41J2/1433B41J2/16552
    • A nozzle plate for an ink jet printhead, the nozzle plate having the following layers in the order recited: a) a first monomolecular layer of an organic material having first and second functional groups, the first functional group of the first monomolecular layer being bound to the surface of the nozzle plate, and the second functional group of the first monomolecular layer being bound to a second monomolecular layer, and b) the second monomolecular layer of an organic material having first and second functional groups, the first functional group of the second monomolecular layer being bound to the second functional group of the first monomolecular layer, and the second functional group of the second monomolecular layer is an anti-wetting group.
    • 一种用于喷墨打印头的喷嘴板,喷嘴板具有以下顺序的层:a)具有第一和第二官能团的有机材料的第一单分子层,第一单分子层的第一官能团与 喷嘴板的表面和第一单分子层的第二官能团与第二单分子层结合,以及b)具有第一和第二官能团的有机材料的第二单分子层,第二官能团的第二官能团 单分子层与第一单分子层的第二官能团结合,第二单分子层的第二官能团为抗潮湿基团。
    • 5. 发明授权
    • Method for replenishing coatings on printhead nozzle plate
    • 在打印头喷嘴板上补充涂层的方法
    • US06296344B1
    • 2001-10-02
    • US09470813
    • 1999-12-22
    • Ravi SharmaZhihao YangThomas L. Penner
    • Ravi SharmaZhihao YangThomas L. Penner
    • B41J2165
    • B82Y30/00B05D1/185B05D5/00B05D7/52B41J2/1606B41J2/162B41J2/164B82Y40/00
    • A method for replenishing fouled coatings on a nozzle plate for an ink jet printhead, the nozzle plate comprising the following layers in the order recited: i) a first monomolecular layer of an organic material having first and second functional groups, the first functional group of the first monomolecular layer being bound to the surface of the nozzle plate, and the second functional group of the first monomolecular layer being bound to a second monomolecular layer, and ii) the second monomolecular layer of an organic material having first and second functional groups, the first functional group of the second monomolecular layer being bound to the second functional group of the first monomolecular layer, and the second functional group of the second monomolecular layer being an anti-wetting group, the second monomolecular layer having been fouled; the method comprising A) unbinding the first functional group of the fouled second monomolecular layer so that it is no longer bound to the second functional group of the first monomolecular layer; B) removing the fouled second monomolecular layer; and C) reattaching a new, unfouled second monomolecular layer to the first monomolecular layer; the new, unfouled second monomolecular layer comprising an organic material having first and second functional groups, the first functional group of the second new, unfouled monomolecular layer being bound to the second functional group of the first monomolecular layer, and the second functional group of the new, unfouled second monomolecular layer being an anti-wetting group.
    • 一种用于在用于喷墨打印头的喷嘴板上补充污垢涂层的方法,喷嘴板按照所述顺序包括以下层:i)具有第一和第二官能团的有机材料的第一单分子层,第一官能团 所述第一单分子层与所述喷嘴板的表面结合,并且所述第一单分子层的第二官能团与第二单分子层结合,以及ii)具有第一和第二官能团的有机材料的第二单分子层, 第二单分子层的第一官能团与第一单分子层的第二官能团结合,第二单分子层的第二官能团为防润湿基团,第二单分子层已被污染; 所述方法包括:A)使结垢的第二单分子层的第一官能团与第一单分子层的第二官能团不再结合, B)去除被污染的第二单分子层; 和C)将新的未结合的第二单分子层重新附着到第一单分子层; 新的未结合的第二单分子层包含具有第一和第二官能团的有机材料,第二新的未结合单分子层的第一官能团与第一单分子层的第二官能团结合,第二官能团 新的未结垢的第二单分子层是抗潮湿组。
    • 8. 发明授权
    • Drop-on-demand ink jet printer with controlled fluid flow to effect drop ejection
    • 具有受控流体流动的点滴式喷墨打印机以实现液滴喷射
    • US06568799B1
    • 2003-05-27
    • US10055295
    • 2002-01-23
    • Zhihao YangRavi SharmaChristopher N. DelametterMilton S. Sales
    • Zhihao YangRavi SharmaChristopher N. DelametterMilton S. Sales
    • B41J275
    • B41J2/14B41J2202/12
    • A drop on demand microfluidic ink jet printing system includes an ink flow chamber having a nozzle opening in a wall of the flow chamber through which ink droplets are ejected when ink in the flow chamber is at or above a predetermined positive pressure. An inlet channel opens into the flow chamber to supply thermally-responsive ink to the flow chamber at or above the predetermined pressure. A microfluidic outlet channel communicates the flow chamber with a low pressure ink reservoir such that thermally-responsive ink is normally transported from the flow chamber at a flow velocity sufficient to maintain ink in the flow chamber at a pressure less than the predetermined positive pressure. A valve selectively restricts the flow of the thermally-responsive ink through the microfluidic outlet channel sufficiently to cause an increase in ink pressure in the flow chamber to at least the predetermined positive pressure, the valve including a heater in contact with at least a portion of the associated microfluidic outlet channel, whereby the viscosity of the thermally-responsive ink can selectively be increased by heat from the heater to restrict the flow of the thermally-responsive ink from the flow chamber such that an ink droplet is ejected through the nozzle opening.
    • 按需微型喷墨打印系统包括墨水流动室,其具有在流动室的壁中的喷嘴开口,当流动室中的墨水处于或高于预定的正压时,通过该喷嘴开口喷射墨滴。 入口通道通向流动室,以在预定压力或高于预定压力的情况下向流动室供应热响应性油墨。 微流出口通道将流动室与低压储墨器连通,使得热响应性油墨通常以足以将流动室中的墨维持在小于预定正压力的压力的流速从流动室输送。 阀选择性地限制热响应性油墨通过微流体出口通道的流动,足以使流动室中的油墨压力增加到至少预定的正压,该阀包括与至少一部分 相关联的微流体出口通道,由此热响应性油墨的粘度可以通过来自加热器的热量而选择性地增加,以限制来自流动室的热响应性油墨的流动,使得墨滴通过喷嘴开口喷射。