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    Method of replenishing developer in a hybrid scavengeless development system
    21.
    发明授权
    Method of replenishing developer in a hybrid scavengeless development system 有权
    补充开发商在混合型无风开发系统中的方法

    公开(公告)号：US06248496B1

    公开(公告)日：2001-06-19

    申请号：US09520361

    申请日：2000-03-07

    申请人： Merrilee A. Galloway ,  Scott M. Silence ,  William H. Hollenbaugh, Jr. ,  Amy L. Stamp ,  Padam K. Angra

    发明人： Merrilee A. Galloway ,  Scott M. Silence ,  William H. Hollenbaugh, Jr. ,  Amy L. Stamp ,  Padam K. Angra

    IPC分类号： G03G900

    CPC分类号： G03G13/09 ,  G03G2215/0621 ,  G03G2215/0643

    摘要： A replenisher material of toner particles and carrier particles, wherein a replenisher ratio of the toner particles to the carrier particles in the replenisher is determined as a function of at least one property of the developer and at least one operational property of an apparatus for developing an electrostatic latent image recorded on an image receiving member, and wherein the apparatus includes a housing defining a chamber having a supply of developer comprised of toner particles and carrier particles therein, a donor member spaced from the image receiving member and adapted to transport toner particles of the developer from the chamber to a development zone adjacent the image receiving member, at least one wire positioned in the development zone between the image receiving member and the donor member, a voltage supply for electrically biasing the at least one wire during a developing operation with a current to detach toner particles from the donor member, forming a cloud of toner particles in the development zone, and developing the latent image with toner particles from the cloud, and at least one dispenser for dispensing replenisher comprised of toner particles and carrier particles into the chamber, wherein a replenisher ratio of the toner particles to the carrier particles in the replenisher is determined as a function of at least one property of the developer and at least one operational property of the apparatus. The replenisher ratio is preferably determined as a function of the tribo stability of the developer in a non-replenishment mode of the apparatus and/or as a function of the conductivity of the developer in a non-replenishment mode of the apparatus.

    摘要翻译： 调色剂颗粒和载体颗粒的补充剂材料，其中调色剂颗粒与补充液中的载体颗粒的补充比被确定为显影剂的至少一种性能的函数，以及用于显影剂的装置的至少一个操作性质 静电潜像被记录在图像接收部件上，并且其中所述装置包括限定腔室的壳体，所述腔室具有由其中的调色剂颗粒和载体颗粒构成的显影剂供应源，所述供体构件与图像接收构件间隔开并且适于传送调色剂颗粒 所述显影剂从所述腔室到邻近所述图像接收构件的显影区域，位于所述图像接收构件和所述施主构件之间的所述显影区域中的至少一根导线，用于在显影操作期间使所述至少一根电线电偏置的电压源， 从供体构件分离调色剂颗粒的电流，形成一种色调 r颗粒，以及从云中用调色剂颗粒显影潜像，以及用于将由调色剂颗粒和载体颗粒组成的补充剂分配到室中的至少一个分配器，其中调色剂颗粒与载体颗粒的补料比 根据显影剂的至少一个性质和装置的至少一个操作特性确定补充器中的补充器。 优选地，根据装置的非补充模式中的显影剂的摩擦稳定性和/或作为装置的非补充模式中的显影剂的电导率的函数来确定补充剂比。

    Surfactant-free semi-continuous emulsion polymerization process for making submicron sized particles for carrier coatings
    27.
    发明授权
    Surfactant-free semi-continuous emulsion polymerization process for making submicron sized particles for carrier coatings 有权
    用于制造载体涂层的亚微米尺寸颗粒的无表面活性剂半连续乳液聚合方法

    公开(公告)号：US06399701B1

    公开(公告)日：2002-06-04

    申请号：US09570724

    申请日：2000-05-15

    申请人： Thomas E. Enright ,  Anthony James Paine ,  George Liebermann ,  Kenneth Derek Henderson ,  Scott M. Silence ,  Bernard A. Kelly

    发明人： Thomas E. Enright ,  Anthony James Paine ,  George Liebermann ,  Kenneth Derek Henderson ,  Scott M. Silence ,  Bernard A. Kelly

    IPC分类号： C08L3102

    CPC分类号： G03G9/1133 ,  C08F2/22 ,  C08F20/14 ,  G03G9/1131

    摘要： Submicron sized particles of poly(methyl methacrylate) are prepared by a surfactant-free semi-continuous emulsion polymerization process that involves (i) preparing an aqueous phase containing a free radical initiator in water by heating and stirring, (ii) preparing a monomer composition containing at least 80% by weight methyl methacrylate and 1 to 10% by weight of a crosslinking agent, (iii) adding the monomer composition to the aqueous phase to initiate emulsion polymerization of the monomer composition, the adding being done at a rate such that from 0.05% to 5% by weight of the total weight of the monomer composition is added per minute, (iv) continuing heating and stirring following completion of the adding of the monomer composition for an amount of time, and (v) drying and recovering the submicron sized particles of poly(methyl methacrylate). The submicron sized particles of poly(methyl methacrylate are used in forming a coating of carrier particles for a two-component developer composition.

    摘要翻译： 聚甲基丙烯酸甲酯的亚微米尺寸颗粒是通过无表面活性剂的半连续乳液聚合方法制备的，其包括（i）通过加热和搅拌在水中制备含有自由基引发剂的水相，（ii）制备单体组合物 含有至少80重量％的甲基丙烯酸甲酯和1至10重量％的交联剂，（iii）将单体组合物加入到水相中以引发单体组合物的乳液聚合，加入的速率使得 每分钟加入0.05〜5重量％的单体组合物，（iv）在完成单体组合物加入一段时间后继续加热和搅拌，（v）干燥和回收 聚甲基丙烯酸甲酯的亚微米尺寸颗粒。 聚（甲基丙烯酸甲酯）的亚微米尺寸的颗粒用于形成用于双组分显影剂组合物的载体颗粒的涂层。

    Polymer coated carrier particles for electrophotographic developers
    28.
    发明授权
    Polymer coated carrier particles for electrophotographic developers 有权
    用于电子照相显影剂的聚合物涂覆的载体颗粒

    公开(公告)号：US06245474B1

    公开(公告)日：2001-06-12

    申请号：US09520446

    申请日：2000-03-07

    申请人： George R. Hsu ,  Scott M. Silence ,  Lynne M. Tatar ,  Bernard A. Kelly ,  Pinyen Lin

    发明人： George R. Hsu ,  Scott M. Silence ,  Lynne M. Tatar ,  Bernard A. Kelly ,  Pinyen Lin

    IPC分类号： G03G910

    CPC分类号： G03G9/1133 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1134

    摘要： A coated carrier having a core particle coated with a mixture of an electronegative insulating polymer comprising a polyvinylidenefluoride polymer or copolymer and an electropositive conductive polymer comprising a polymethyl methacrylate polymer or copolymer with a conductive material dispersed therein is made by powder coating. The coated carrier has unique properties, including a conductivity of from 1.1×10−14 to 1.0×10−8 mho-cm−1, a triboelectric charging value of from 12 to 20 and an average particle diameter of from 65 to 75, rendering the coated carrier ideal for use in a developer to be used in a magnetic brush type development apparatus. The powder coating method includes mixing the core particle and the mixture of negatively charging polymer and conductive polymer until the mixture of negatively charging polymer and conductive polymer adheres to the core particle, heating the mixture of the core particle and the mixture of negatively charging polymer and conductive polymer until the mixture of negatively charging polymer and conductive polymer melts and fuses to the core particle, and cooling the coated core obtained.

    摘要翻译： 通过粉末涂料制成涂覆载体，其具有涂覆有包含聚偏二氟乙烯聚合物或共聚物的电负极绝缘聚合物和包含分散有导电材料的聚甲基丙烯酸甲酯聚合物或共聚物的正电导电聚合物的混合物的核心颗粒。 涂层载体具有独特的性能，包括电导率为1.1×10-14至1.0×10-8mho-cm-1，摩擦带电值为12至20，平均粒径为65至75，使涂层 载体用于用于磁刷式显影装置的显影剂中。 粉末涂布方法包括将核心颗粒和负电荷聚合物和导电聚合物的混合物混合，直到带负电的聚合物和导电聚合物的混合物粘附到核心颗粒，加热核心颗粒和负电聚合物的混合物和 导电聚合物，直到带负电的聚合物和导电聚合物的混合物熔化并熔化到核心颗粒，并冷却涂覆的芯获得。

    Toner and developer providing offset lithography print quality
    29.
    发明授权
    Toner and developer providing offset lithography print quality 有权
    提供胶版印刷质量的墨粉和显影剂

    公开(公告)号：US06242145B1

    公开(公告)日：2001-06-05

    申请号：US09520437

    申请日：2000-03-07

    申请人： Merrilee A. Galloway ,  Scott M. Silence ,  Richard J. Muller ,  William H. Hollenbaugh, Jr. ,  Amy L. Stamp

    发明人： Merrilee A. Galloway ,  Scott M. Silence ,  Richard J. Muller ,  William H. Hollenbaugh, Jr. ,  Amy L. Stamp

    IPC分类号： G03G908

    CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/0823 ,  G03G9/0902 ,  G03G9/0904 ,  G03G9/09708 ,  G03G9/09725 ,  G03G9/09783

    摘要： A developer of a mixture of carrier particles and toner particles containing at least one binder, at least one colorant, and optionally one or more additives, has a triboelectric value of from 35 to 60 &mgr;C/g, a charge distribution (Q/D) of from −0.5 to −1.0 fC/&mgr;m and the distribution is substantially unimodal and possesses a peak width of less than 0.5 fC/&mgr;m, preferably less than 0.3 fC/&mgr;m, and a conductivity of the developer ranges from 1×10−11 to 10×10−15 mho/cm as measured at 30 V. The carrier particles of the developer preferably have an average particle diameter of 65 to 90 microns and a size distribution wherein 2.0% or less of a total number of carrier particles have a size less than 38 micrometers. The ratio of carrier volume median diameter to toner volume median diameter is about 10:1. The developer finds particular use in devices utilizing hybrid scavengeless development. Use of a developer with such properties in a hybrid scavengeless development apparatus enables images to be achieved with properties similar to that achieved in offset lithography.

    摘要翻译： 载体颗粒和含有至少一种粘合剂，至少一种着色剂和任选的一种或多种添加剂的调色剂颗粒的混合物的显影剂的摩擦电压值为35至60μC/ g，电荷分布（Q / D） 为-0.5至-1.0 fC / mum，分布基本上为单峰，峰值宽度小于0.5 fC / mum，优选小于0.3 fC / mum，显影剂的电导率为1×10-11至10x10 -15mho / cm。显影剂的载体颗粒优选具有65至90微米的平均粒径，其中载体颗粒总数的2.0％或更小的尺寸小于38的尺寸分布 微米。 载体体积中值直径与调色剂体积中值直径的比例为约10:1。 开发人员发现在使用混合型无风险开发的设备中特别有用。 在具有这种特性的显影剂中使用具有这种特性的混合扫描装置能够以与胶版印刷法相似的性质来实现图像。

    Carrier and developer providing offset lithography print quality
    30.
    发明授权
    Carrier and developer providing offset lithography print quality 有权
    载体和显影剂提供胶印印刷质量

    公开(公告)号：US06177221B1

    公开(公告)日：2001-01-23

    申请号：US09520358

    申请日：2000-03-07

    申请人： Deepak R. Maniar ,  Scott M. Silence ,  Merrilee A. Galloway

    发明人： Deepak R. Maniar ,  Scott M. Silence ,  Merrilee A. Galloway

    IPC分类号： G03G9113

    CPC分类号： G03G9/107 ,  G03G9/10 ,  G03G9/113 ,  G03G9/1133 ,  Y10T428/2991

    摘要： A carrier for a developer composition includes a steel core having a shape factor of 6 or more coated with a coating at a coating weight of from 0.1 to 3.0% by weight of a total core weight. The coating is most preferably polymethyl methacrylate. The steel core also preferably has an average particle diameter of 70 to 89 micrometers and a size distribution wherein 1.5% or less of a total number of carrier particles have a size less than 38 micrometers. The carrier is preferably used in conjunction with toner particles to form a developer for particular use in devices utilizing hybrid scavengeless development. Use of a carrier in such a developer in a hybrid scavengeless development apparatus enables images to be achieved with properties similar to that achieved in offset lithography.

    摘要翻译： 用于显影剂组合物的载体包括具有6或更大的形状因子的钢芯，其涂覆的涂层重量为总芯重量的0.1至3.0重量％。 涂层最优选为聚甲基丙烯酸甲酯。 钢芯也优选具有70至89微米的平均粒径和尺寸分布，其中载体颗粒总数的1.5％或更小具有小于38微米的尺寸。 载体优选与调色剂颗粒结合使用以形成特别用于利用混合无花开发的装置的显影剂。 在这种显影剂中使用载体在混合清扫开发装置中可以实现具有类似于胶印光刻中所获得的图像的图像。