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12 条记录 (耗时 0.02 秒)

    Printhead for thermal ink jet devices
    1.
    发明授权
    Printhead for thermal ink jet devices 失效
    用于热喷墨设备的打印头

    公开(公告)号：US5943076A

    公开(公告)日：1999-08-24

    申请号：US805098

    申请日：1997-02-24

    申请人： Cathie J. Burke ,  Michael P. O'Horo ,  Donald J. Drake ,  Alan D. Raisanen

    发明人： Cathie J. Burke ,  Michael P. O'Horo ,  Donald J. Drake ,  Alan D. Raisanen

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

    CPC分类号： B41J2/1626 ,  B41J2/14129 ,  B41J2/1601 ,  B41J2/1642 ,  B41J2202/03 ,  B41J2202/11

    摘要： The nucleation efficiency of a thermal ink jet printhead is improved by forming a heater element with a planar surface. A heater resistor, polysilicon in a preferred embodiment, has an irregular surface which can trap gas or vapors in the cracks or crevices. When the heater resistor is pulsed, the nucleation temperature is reduced by these trapped vapors requiring an increase in electrical input to the resistors, thereby reducing efficiency. The invention recognizes that a heater resistor with a planar surface in contact with an ink layer results in a higher nucleation temperature and increased efficiency. In one embodiment, a phosphosilicate glass (PSG) is flowed directly onto the resistor surface forming a planarization layer. Subsequent deposition of tantalum substantially replicates the underlying topography creating a heater resistor with a smooth surface adjacent the ink.In a second embodiment, a diffusion layer which is conformal is formed on the resistor surface with the PSG layer formed on the oxide layer. The diffusion layer can be a pyrolytic CVD deposited silicon nitride or a thermally grown oxide layer. The PSG layer has a planarized surface to which the tantalum conforms.

    摘要翻译： 通过形成具有平坦表面的加热器元件来改善热喷墨打印头的成核效率。 加热电阻器，多晶硅在优选实施例中具有不规则的表面，其可以在裂纹或缝隙中捕获气体或蒸汽。 当加热电阻器被脉冲时，通过这些被捕获的蒸汽减少成核温度，这需要增加对电阻器的电输入，从而降低效率。 本发明认识到，具有与油墨层接触的平坦表面的加热电阻器导致更高的成核温度和更高的效率。 在一个实施例中，磷硅玻璃（PSG）直接流到形成平坦化层的电阻器表面上。 随后的钽的沉积基本上复制了底层的形貌，形成了具有与墨水相邻的光滑表面的加热电阻器。 在第二实施例中，在电阻器表面上形成具有共形的扩散层，其中形成在氧化物层上的PSG层。 扩散层可以是热解CVD沉积的氮化硅或热生长的氧化物层。 PSG层具有钽符合的平坦化表面。

    Thermal ink jet heater design
    3.
    发明授权
    Thermal ink jet heater design 失效
    热喷墨加热器设计

    公开(公告)号：US06315398B1

    公开(公告)日：2001-11-13

    申请号：US07963969

    申请日：1992-10-21

    申请人： Cathie J. Burke ,  Narayan V. Desphande ,  William G. Hawkins ,  Dale R. Ims ,  Michael P. O'Horo ,  Gary A. Kneezel ,  Thomas A. Tellier ,  Ivan Rezanka

    发明人： Cathie J. Burke ,  Narayan V. Desphande ,  William G. Hawkins ,  Dale R. Ims ,  Michael P. O'Horo ,  Gary A. Kneezel ,  Thomas A. Tellier ,  Ivan Rezanka

    IPC分类号： B41J205

    CPC分类号： B41J2/1604 ,  B41J2/14129 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1646

    摘要： The new heater element design has a pit layer which protects the overglaze passivation layer, PSG step region, portions of the Ta layer and dielectric isolation layer and junctions or regions susceptible to the cavitational pressures. Further, the inner walls of the pit layer define the effective heater area and the dopant lines define the actual heater area. In alternative embodiments, the dopant lines define the actual and effective heater areas, and an inner wall and a dopant line define the actual and effective heater areas. Further, when the new heater element designs are incorporated into printheads having full pit channel geometry and open pit channel geometry, the operating lifetime of the printhead is extended because the added protection of the pit layer prevents: 1) passivation damage and cavitational damages of the heater elements; and 2) degradation of heater robustness, hot spot formations and heater failures well into the 109 pulse range. The printhead incorporating the new heater element design can be incorporated into drop-on-demand printing systems of a carriage type or a full width type.

    摘要翻译： 新的加热器元件设计具有凹坑层，其保护釉面钝化层，PSG阶梯区域，Ta层和电介质隔离层的部分以及对空穴压力敏感的结或区域。 此外，凹坑层的内壁限定有效的加热器面积，并且掺杂剂线限定实际的加热器面积。 在替代实施例中，掺杂剂线限定实际和有效的加热器区域，并且内壁和掺杂剂线限定实际和有效的加热器区域。 此外，当新的加热器元件设计结合到具有全坑通道几何形状和露天通道几何形状的打印头中时，打印头的工作寿命延长，因为凹坑层的附加保护防止：1）钝化损伤和空穴损伤 加热元件; 和2）加热器鲁棒性，热点形成和加热器故障的恶化达到109脉冲范围。 包含新的加热器元件设计的打印头可以结合到托架型或全宽型的按需按需打印系统中。

    Off center heaters for thermal ink jet printheads
    4.
    发明授权
    Off center heaters for thermal ink jet printheads 失效
    用于热喷墨打印头的中心加热器

    公开(公告)号：US5410340A

    公开(公告)日：1995-04-25

    申请号：US155505

    申请日：1993-11-22

    申请人： Donald J. Drake ,  Mark A. Cellura ,  Michael P. O'Horo ,  Reinhold E. Drews

    发明人： Donald J. Drake ,  Mark A. Cellura ,  Michael P. O'Horo ,  Reinhold E. Drews

    IPC分类号： B41J2/05 ,  B41J2/14 ,  B41J2/155 ,  B41J2/16

    CPC分类号： B41J2/14129 ,  B41J2/155 ,  B41J2002/14379

    摘要： An ink jet printhead having off center or offset heaters or thermal transducers to reduce heater damage. The printhead has heaters located beneath channels to eject ink from the channel through a nozzle to a substrate for printing. Edge heaters are spaced away from the dicing edges of the heater plate to avoid damage resulting from dicing for assembly or from thermal expansion due to adjacent printheads if used to form a page width or large array printhead. The spacing distance between the edge heaters to adjacent equally spaced heaters on the same printhead is less than the distance between adjacent equally spaced heaters. Edge heaters are also offset from the centerline of respective channels in the printhead.

    摘要翻译： 具有偏心加热器或热转换器的喷墨打印头，以减少加热器损坏。 打印头具有位于通道下方的加热器，以通过喷嘴将油墨从通道喷射到基板以进行打印。 边缘加热器与加热器板的切割边缘间隔开，以避免由于相邻打印头的组装或热膨胀而导致的损坏，如果用于形成页面宽度或大阵列打印头。 边缘加热器与同一打印头上相邻等间距加热器之间的间隔距离小于相邻等间距加热器之间的距离。 边缘加热器也偏离打印头中相应通道的中心线。

    Ink jet printhead which prevents accumulation of air bubbles therein and method of fabrication thereof
    5.
    发明授权
    Ink jet printhead which prevents accumulation of air bubbles therein and method of fabrication thereof 失效
    防止气泡累积的喷墨打印头及其制造方法

    公开(公告)号：US6130693A

    公开(公告)日：2000-10-10

    申请号：US4643

    申请日：1998-01-08

    申请人： Dale R. Ims ,  Michael P. O'Horo ,  Donald J. Drake ,  Brian S. Hilton

    发明人： Dale R. Ims ,  Michael P. O'Horo ,  Donald J. Drake ,  Brian S. Hilton

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

    CPC分类号： B41J2/14145 ,  B41J2/14129 ,  B41J2/1604 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1635 ,  B41J2/1642 ,  B41J2202/07

    摘要： A printhead and method of fabrication thereof provides that the printhead reservoir has substantially the same cross-sectional ink flow area as the total cross-sectional area of the plurality of individual ink channels which interconnect the reservoir with the printhead nozzles. Since the flow area of the reservoir is substantially matched to the total flow area of the channels, the ink capacity of the reservoir is relatively low and the flow rate therethrough during a printing operation is relatively high. The small capacity of reservoir, together with the high ink flow rate therethrough, assures short ink residency time during printing, so that any exsolved air bubbles in the ink are swept away with subsequent ink droplet ejections during a printing operation and thus prevents any air bubbles present from coalescing into larger bubbles which can cause print quality defects.

    摘要翻译： 打印头及其制造方法提供了打印头存储器具有与将储存器与打印头喷嘴相互连接的多个单独油墨通道的总横截面积基本上相同的横截面油墨流动面积。 由于储存器的流动面积基本上与通道的总流量面积相匹配，所以储存器的墨水容量相对较低，并且在打印操作期间通过的流量相对较高。 储存器的小容量以及通过其的高油墨流速确保了打印期间的短油墨驻留时间，使得在打印操作期间油墨中随后的墨滴喷射中的任何过量的气泡被扫除，从而防止任何气泡 存在聚结成较大的气泡，这可能导致印刷质量缺陷。

    Magnetic glass carrier materials
    6.
    发明授权
    Magnetic glass carrier materials 失效
    磁性玻璃载体材料

    公开(公告)号：US4124735A

    公开(公告)日：1978-11-07

    申请号：US747117

    申请日：1976-12-02

    申请人： Michael P. O'Horo

    发明人： Michael P. O'Horo

    IPC分类号： C03C10/00 ,  C03C12/00 ,  G03G9/10 ,  G03G9/107 ,  H01F1/36 ,  B32B7/10 ,  C03C3/22 ,  G03G9/14

    CPC分类号： G03G9/107 ,  C03C10/0081 ,  C03C12/00 ,  G03G9/10 ,  H01F1/36 ,  Y10S428/90 ,  Y10T428/2982 ,  Y10T428/2996 ,  Y10T428/2998

    摘要： Electrostatographic carrier materials having low bulk densities and high magnetic permeabilities are obtained by providing an alumino-boro-silicate glass particle containing from between about 10 to about 15 molar percent Fe.sub.2 O.sub.3 in which superparamagnetic ferrite crystallites having an average particle size of up to about 500A have been precipitated by heat treatment. The magnetic behavior of the glass carrier particles which is dependent on the number present and size of the ferrite crystallites can be closely controlled by heat treatment at temperatures in the range of between about 600.degree. C and 800.degree. C. When mixed with toner particles, these magnetic glass carrier materials experience significantly reduced toner impaction levels.

    摘要翻译： 具有低体积密度和高磁导率的静电载体材料通过提供含有约10至约15摩尔％Fe 2 O 3的铝 - 硼硅酸盐玻璃颗粒而获得，其中平均粒度最高达约500A的超顺磁性铁氧体微晶具有 通过热处理沉淀。 依赖于铁素体微晶的数量和尺寸的玻璃载体颗粒的磁性能可以通过在约600-800℃范围内的温度下进行热处理来严密控制。当与调色剂颗粒混合时， 这些磁性玻璃载体材料经历显着降低的调色剂冲击水平。

    Magnetic glass carrier materials
    7.
    发明授权
    Magnetic glass carrier materials 失效

    公开(公告)号：US4126437A

    公开(公告)日：1978-11-21

    申请号：US746961

    申请日：1976-12-02

    申请人： Michael P. O'Horo

    发明人： Michael P. O'Horo

    IPC分类号： C03C10/00 ,  C03C12/00 ,  G03G9/10 ,  G03G9/107 ,  H01F1/37 ,  C03B19/10 ,  C03B32/00 ,  C03C3/22 ,  G03G9/14

    CPC分类号： C03C12/00 ,  C03C10/0081 ,  G03G9/10 ,  G03G9/107 ,  H01F1/37 ,  Y10S428/90 ,  Y10T428/2982

    摘要： Electrostatographic carrier materials having low bulk densities and high magnetic permeabilities are obtained by providing an alumino-boro-silicate glass particle containing from between about 10 to about 15 molar percent Fe.sub.2 O.sub.3 in which superparamagnetic ferrite crystallites having an average particle size of up to about 500A have been precipitated by heat treatment. The magnetic behavior of the glass carrier particles which is dependent on the number present and size of the ferrite crystallites can be closely controlled by heat treatment at temperatures in the range of between about 600.degree. C and 800.degree. C. When mixed with toner particles, these magnetic glass carrier materials experience significantly reduced toner impaction levels.

    Resistive printhead arrays for thermal transfer printing
    10.
    发明授权
    Resistive printhead arrays for thermal transfer printing 失效
    用于热转印的电阻式打印头阵列

    公开(公告)号：US4860030A

    公开(公告)日：1989-08-22

    申请号：US133590

    申请日：1987-12-14

    申请人： Stephen F. Pond ,  Gary A. Kneezel ,  Robert V. Lorenze ,  Michael P. O'Horo ,  Martin S. Maltz ,  Richard Kellerman

    发明人： Stephen F. Pond ,  Gary A. Kneezel ,  Robert V. Lorenze ,  Michael P. O'Horo ,  Martin S. Maltz ,  Richard Kellerman

    IPC分类号： B41J2/335 ,  B41J2/325

    CPC分类号： B41J2/325

    摘要： A thermal transfer printing device, including an ink donor supporting an ink meltable upon the application of a selected temperature, a printing head supporting a resistive heating element for generating the selected temperature at the ink donor, and means for bringing a final image support surface into contacting relationship with the ink donor in timed relationship to the application of the selected temperature to the ink donor including an electrically conductive heat sink layer, a heat resistant organic material having a very low thermal conductivity deposited on the heat sink layer and an array of resistors, supported on the heat resistant organic material, each resistor selectively controllable to apply a melting temperature to the meltable ink. The heat resistant organic material having a very low thermal conductivity is desirably a polyimide.

    摘要翻译： 一种热转印打印装置，包括支持在施加选定温度时可熔化的油墨的供墨器，支撑用于在供墨器处产生选定温度的电阻加热元件的打印头，以及用于使最终图像支撑表面进入 与供墨器的接触关系与施加所选择的温度到供墨器的定时关系包括导电散热层，沉积在散热层上的非常低热导率的耐热有机材料和电阻阵列 ，支撑在耐热有机材料上，每个电阻器可选择性地可控制以将熔融温度施加到可熔融的油墨。 具有非常低导热性的耐热有机材料理想地是聚酰亚胺。