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    Toner compositions
    4.
    发明授权
    Toner compositions 有权
    调色剂组合物

    公开(公告)号：US06214507B1

    公开(公告)日：2001-04-10

    申请号：US09132185

    申请日：1998-08-11

    申请人： Jeffrey H. Sokol ,  Edward J. Gutman

    发明人： Jeffrey H. Sokol ,  Edward J. Gutman

    IPC分类号： G03G908

    CPC分类号： G03G9/08711 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

    摘要： A toner composition comprised of binder, colorant, and a surface additive of a coated silica and wherein said silica possesses a BET surface area, in m2/g of from about 35 to about 65, a bulk density, in grams/liter, of from about 40 to about 60, and wherein the size diameter determined from the BET measurement is from about 20 to about 100 nanometers.

    摘要翻译： 由粘合剂，着色剂和涂覆二氧化硅的表面添加剂组成的调色剂组合物，其中所述二氧化硅具有平方厘米的体积密度（克/升）的BET表面积（以m 2 / g为约35至约65） 约40至约60，并且其中由BET测量确定的尺寸直径为约20至约100纳米。

    Toner and developer for magnetic brush development system
    5.
    发明授权
    Toner and developer for magnetic brush development system 有权
    磁刷开发系统的墨粉和显影剂

    公开(公告)号：US06319647B1

    公开(公告)日：2001-11-20

    申请号：US09520360

    申请日：2000-03-07

    申请人： Edward J. Gutman ,  Barbara M. Ferguson

    发明人： Edward J. Gutman ,  Barbara M. Ferguson

    IPC分类号： G03G9087

    CPC分类号： G03G9/09783 ,  G03G9/0823 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09725 ,  G03G9/09791

    摘要： A toner of toner particles containing at least one binder, at least one colorant, and preferably one or more external additives is advantageously formed into a developer and used in a magnetic brush development system to achieve consistent, high quality copy images. The toner particles, following triboelectric contact with carrier particles, exhibit a charge per particle diameter (Q/D) of from 0.6 to 0.9 fC/&mgr;m and a triboelectric charge of from 20 to 25 &mgr;C/g. The toner particles preferably have an average particle diameter of from 7.8 to 8.3 microns. The toner is combined with carrier particles to achieve a developer, the carrier particles preferably having an average diameter of from 45 to 55 microns and including a core of ferrite substantially free of copper and zinc coated with a coating comprising a polyvinylidenefluoride polymer or copolymer and a polymethyl methacrylate polymer or copolymer.

    摘要翻译： 有利地，将包含至少一种粘合剂，至少一种着色剂，优选一种或多种外部添加剂的调色剂颗粒的调色剂形成为显影剂，并用于磁刷显影系统中以实现一致的高质量复印图像。 与载体颗粒摩擦接触后的调色剂颗粒显示出0.6至0.9fC / mum的每个颗粒直径（Q / D）的电荷和20至25μC/ g的摩擦电荷。 调色剂颗粒的平均粒径优选为7.8至8.3微米。 调色剂与载体颗粒结合以获得显影剂，载体颗粒优选具有45至55微米的平均直径，并且包括基本上不含铜和锌的铁心，涂覆有包含聚偏二氟乙烯聚合物或共聚物的涂层和 聚甲基丙烯酸甲酯聚合物或共聚物。

    Process for preparing electrophotographic toner
    6.
    发明授权
    Process for preparing electrophotographic toner 失效
    制备电子照相调色剂的方法

    公开(公告)号：US4894308A

    公开(公告)日：1990-01-16

    申请号：US259239

    申请日：1988-10-17

    申请人： Hadi K. Mahabadi ,  Sheau V. Kao ,  Gerald R. Allison ,  Hui Chang ,  Edward J. Gutman

    发明人： Hadi K. Mahabadi ,  Sheau V. Kao ,  Gerald R. Allison ,  Hui Chang ,  Edward J. Gutman

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

    CPC分类号： G03G9/0812 ,  G03G9/081

    摘要： A process for preparing an electrophotographic toner composition which comprises premixing a pigment and a charge control additive in the absence of a solvent, subsequently admixing the premixed pigment and charge control additive and a resin, and extruding the pigment, charge control additive, and resin. The pigment and the charge control additive may be premixed prior to being added to the extruder with the resin; alternatively, the pigment and charge control additive may be premixed by adding them to the extruder via an upstream supply means and extruding them, and subsequently adding the resin to the extruder via a downstream supply means.

    摘要翻译： 一种用于制备电子照相调色剂组合物的方法，其包括在不存在溶剂的情况下预混合颜料和电荷控制添加剂，随后混合预混颜料和电荷控制添加剂和树脂，并挤出颜料，电荷控制添加剂和树脂。 颜料和电荷控制添加剂可以在用树脂加入挤出机之前进行预混合; 或者，颜料和电荷控制添加剂可以通过将它们经由上游供应装置加入到挤出机中并将其挤出来预混合，然后通过下游供应装置将树脂加入到挤出机中。

    Color-blind melt flow index properties for toners
    7.
    发明授权
    Color-blind melt flow index properties for toners 有权
    调色剂的色盲熔体流动指数特性

    公开(公告)号：US06406822B1

    公开(公告)日：2002-06-18

    申请号：US09671997

    申请日：2000-09-29

    申请人： Scott M. Silence ,  Joo T. Chung ,  James M. Proper ,  Edward J. Gutman ,  James G. Stenzel ,  Kip L. Jugle ,  Yelena Shapiro ,  James A. Winters ,  Maria M. Barden ,  John S. Walters

    发明人： Scott M. Silence ,  Joo T. Chung ,  James M. Proper ,  Edward J. Gutman ,  James G. Stenzel ,  Kip L. Jugle ,  Yelena Shapiro ,  James A. Winters ,  Maria M. Barden ,  John S. Walters

    IPC分类号： G03G908

    CPC分类号： G03G9/0821 ,  G03G9/08797 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09783

    摘要： At least three differently colored toners, designed for use together in forming a color image in an image developing device, have substantially the same melt flow index value. By substantially matching the melt flow index values of at least three toners of a set of toners, it has been found that the resultant color image has an overall excellent image quality, i.e., an excellent overall gloss level without any gloss banding. The toners may be made to have substantially the same melt flow index value in a carefully controlled process that includes forming a single toner by feeding at least one binder and at least one colorant into a mixing device to form a mixture, upon exit of the mixture from the mixing device, measuring a rheology property of the mixture with at least one monitoring device, and comparing the measured rheology property to a target property range that the measured rheology property must be within in order for the single toner to achieve the desired melt flow index value, wherein if the measuring indicates that the rheology property is outside of the target property range, feed amounts of the at least one binder or of the at least one colorant into the mixing device are adjusted, grinding the mixture, optionally together with a portion of one or more external additives to be added to the mixture, classifying the ground mixture, mixing the classified mixture with one or more external surface additives to obtain the single toner having the desired melt flow index value, and repeating the steps for each additional differently colored toner.

    摘要翻译： 设计用于在图像显影装置中形成彩色图像一起使用的至少三种不同颜色的调色剂具有基本上相同的熔体流动指数值。 通过基本上匹配一组调色剂的至少三种调色剂的熔体流动指数值，已经发现所得到的彩色图像具有总体优异的图像质量，即没有任何光泽条纹的优异的整体光泽度。 调色剂可以在仔细控制的方法中具有基本上相同的熔体流动指数值，包括通过在混合物出口时将至少一种粘合剂和至少一种着色剂进料到混合装置中形成混合物来形成单一调色剂 从混合装置测量混合物与至少一个监测装置的流变性质，并将所测量的流变性能与所测量的流变性能必须在其中的目标性能范围进行比较，以使单个调色剂达到所需的熔体流动 指数值，其中如果测量表明流变性能在目标特性范围之外，则调节至少一种粘合剂或至少一种着色剂进入混合装置的进料量，任选地与 一部分添加到混合物中的外部添加剂，将研磨的混合物分级，将分级的混合物与一个或多个外表面 添加剂以获得具有所需熔体流动指数值的单一调色剂，并且对于每种附加的不同颜色的调色剂重复步骤。

    Apparatus and method for determining the voltage breakdown and conductivity of particulate material
    8.
    发明授权
    Apparatus and method for determining the voltage breakdown and conductivity of particulate material 失效
    用于确定颗粒材料的电压击穿和电导率的装置和方法

    公开(公告)号：US5196803A

    公开(公告)日：1993-03-23

    申请号：US739034

    申请日：1991-08-01

    申请人： Michael Cellini, Jr. ,  Rudolph Forgensi ,  Edward J. Gutman ,  Kallis H. Mannik ,  Robert J. Turchetti ,  Donald H. Wood ,  Morris M. DeYoung, Jr.

    发明人： Michael Cellini, Jr. ,  Rudolph Forgensi ,  Edward J. Gutman ,  Kallis H. Mannik ,  Robert J. Turchetti ,  Donald H. Wood ,  Morris M. DeYoung, Jr.

    IPC分类号： G01N27/60 ,  G01R31/12 ,  G03G9/08

    CPC分类号： G01R31/1263

    摘要： An apparatus and method for determining both the breakdown voltage and the conductivity of a particulate material, such as a developer material, is provided. In a preferred embodiment, the apparatus for determining breakdown voltage comprises a breakdown cell for storing a preselected quantity of the particulate material and a voltage breakdown ("VB") autometer, the VB autometer being adapted to apply a first voltage across at least portions of the preselected quantity of the particulate material. The VB autometer is capable of progressively varying the magnitude of the first voltage. A measuring circuit, for measuring a second voltage, is coupled to the voltage breakdown cell. When the second voltage substantially equals a preselected reference voltage, the first voltage substantially equals the breakdown voltage of the particulate material.

    摘要翻译： 提供了用于确定诸如显影剂材料的颗粒材料的击穿电压和导电性的装置和方法。 在优选实施例中，用于确定击穿电压的装置包括用于存储预选量的颗粒材料和电压击穿（“VB”）自动机的击穿单元，所述VB自动计算器适于施加第一电压跨越至少部分 预选量的颗粒物料。 VB自动变速器能够逐渐改变第一电压的大小。 用于测量第二电压的测量电路耦合到电压击穿单元。 当第二电压基本上等于预选参考电压时，第一电压基本上等于颗粒材料的击穿电压。

    Apparatus and method for removing developer material
    9.
    发明授权
    Apparatus and method for removing developer material 失效
    用于去除显影剂材料的装置和方法

    公开(公告)号：US5175590A

    公开(公告)日：1992-12-29

    申请号：US886222

    申请日：1992-05-21

    申请人： Neil A. Frankel ,  Edward J. Gutman ,  Larry G. Hogestyn

    发明人： Neil A. Frankel ,  Edward J. Gutman ,  Larry G. Hogestyn

    IPC分类号： G03G15/02 ,  G03G15/01 ,  G03G21/00 ,  G03G21/06 ,  G03G21/10

    CPC分类号： G03G15/0105 ,  G03G21/06

    摘要： A printing machine of the type including an image receiving member having a charge retentive surface with a first developed image being disposed in a first zone and a second developed image being disposed in a second zone is provided. The printing machine preferably including a corona generator positioned adjacent the charge retentive surface and characterized by an electrical parameter; a first control device for setting the electrical parameter to a first level for disposing the first developed image at a first charge level as the first developed image is passed by the corona generator; a second control device for changing the electrical parameter to a second level for disposing the second developed image at a second charge level as the second developed image is passed by the corona generator; and a cleaning member, contacting the charge retentive surface, for substantially removing both the first developed image and a portion of the second developed image from the the charge retentive surface, wherein the capacity of the cleaning member to remove the first developed image and the portion of the second developed image from the charge retentive surface depends on the magnitudes of the first and second levels.