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    Apparatus for re-inking a ribbon in a thermal transfer printing system
    2.
    发明授权
    Apparatus for re-inking a ribbon in a thermal transfer printing system 失效
    用于在热转印打印系统中重新上色墨带的装置

    公开(公告)号：US4253775A

    公开(公告)日：1981-03-03

    申请号：US53164

    申请日：1979-06-29

    申请人： Walter Crooks ,  Keith S. Pennington

    发明人： Walter Crooks ,  Keith S. Pennington

    IPC分类号： B41J27/00 ,  B41J2/315 ,  B41J31/00 ,  B41J31/06 ,  B41J31/14 ,  B41M5/382 ,  B41J27/12

    CPC分类号： B41M5/3825 ,  B41J31/06 ,  B41J31/14

    摘要： A doctor blade is used to apply a powdered toner to the depleted regions of a resistive thermal transfer ribbon. The ribbon is then moved adjacent a heating electrode that passes current through a resistive substrate of the ribbon so that a transverse line on the ribbon is heated and the added toner is fused in the depleted regions of the ribbon. The heated area of the ribbon is thereafter compressed by a cold roller to provide a uniform re-inked surface.

    摘要翻译： 使用刮刀将粉末调色剂施加到电阻热转印带的耗尽区域。 然后将带子移动到加热电极附近，该加热电极使电流通过带的电阻衬底，使得带上的横向线被加热，并且添加的调色剂熔合在带的耗尽区域中。 然后将带的加热区域用冷辊压缩，以提供均匀的再墨水表面。

    Print head for high resolution electrothermal printing apparatus
    3.
    发明授权
    Print head for high resolution electrothermal printing apparatus 失效
    高分辨率电热印刷机的打印头

    公开(公告)号：US4456915A

    公开(公告)日：1984-06-26

    申请号：US466275

    申请日：1983-02-14

    申请人： Walter Crooks ,  Cameron H. Hafer ,  William J. Weiche

    发明人： Walter Crooks ,  Cameron H. Hafer ,  William J. Weiche

    IPC分类号： B41J2/335 ,  G01D15/10 ,  B41J3/20 ,  H05B3/00

    CPC分类号： B41J2/3356 ,  B41J2/33565

    摘要： A printing apparatus employing a print head comprising a plurality of thin wire print electrodes mounted in a single plane and held in a closely-spaced row by an electrically insulating resilient material so that the wires are individually movable out of the planar alignment to a limited extent with respect to the other wires in the array. A relatively rigid backing member is provided to support the electrode array and the print head is mounted in a relatively fixed position relative to the print ribbon and a predetermined pressure is produced between the print head and the electrothermal print ribbon during printing operations.

    摘要翻译： 一种采用打印头的打印装置，包括安装在单个平面中的多个细丝印刷电极，并通过电绝缘的弹性材料保持在紧密排列的行中，使得电线可以在有限的程度上单独地移出平面对准 相对于阵列中的其他线。 提供相对刚性的背衬构件以支撑电极阵列，并且打印头相对于打印色带安装在相对固定的位置，并且在打印操作期间在打印头和电热打印色带之间产生预定的压力。

    Electrophotographic developing process and compositions for use therein
    5.
    发明授权
    Electrophotographic developing process and compositions for use therein 失效
    电子照相显影方法及其中使用的组合物

    公开(公告)号：US4187329A

    公开(公告)日：1980-02-05

    申请号：US112393

    申请日：1971-02-03

    申请人： Walter Crooks

    发明人： Walter Crooks

    IPC分类号： G03G9/087 ,  G03G9/097 ,  G03G13/08 ,  G03G9/08

    CPC分类号： G03G9/0872 ,  G03G9/097

    摘要： Wetting by toners of the surface of reusable photoconductors in electrophotographic processes results on image cycling in adhesion of the toner to the photoconductor surface to form a film. Such filming is reduced or eliminated by including in the developer a small amount of certain unpigmented organic polymeric materials having smaller particle size than the pigmented toner particles. Suitable organic polymers are fluorinated hydrocarbon polymers and copolymers, and polyethylene.

    摘要翻译： 在电子照相方法中，可重复使用的光电导体的表面由调色剂润湿导致调色剂粘附到光电导体表面以形成膜的图像循环。 通过在显影剂中包含少量与着色调色剂颗粒相比具有更小颗粒尺寸的某些未着色的有机聚合物材料来减少或消除这种成膜。 合适的有机聚合物是氟化烃聚合物和共聚物，以及聚乙烯。

    Electrophotographic developer with fibers of polytetrafluoroethylene
    6.
    发明授权
    Electrophotographic developer with fibers of polytetrafluoroethylene 失效
    具有聚四氟乙烯纤维的电子照相显影剂

    公开(公告)号：US3977871A

    公开(公告)日：1976-08-31

    申请号：US604988

    申请日：1975-08-15

    申请人： Walter Crooks

    发明人： Walter Crooks

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G13/08 ,  G03G9/02

    CPC分类号： G03G9/10

    摘要： The formation of toner film on the photoconductor in electrophotography is reduced by adding to the developer toner a small amount of fibrillatable polytetrafluoroethylene, and working the mixture until a random network of fibers of said polytetrafluoroethylene is formed.

    摘要翻译： 通过向显影剂调色剂中加入少量的可原纤化的聚四氟乙烯，在电子照相术中在感光体上形成调色剂膜，并将混合物加工直到形成所述聚四氟乙烯的无规纤维网络。