公开(公告)号：US20070098456A1

公开(公告)日：2007-05-03

申请号：US11262575

申请日：2005-10-31

申请人： Michael Thompson ,  James Chappell ,  Steven Hart ,  Patrick Howe ,  Ajay Kumar ,  Steven LeRoy ,  Paul Morehouse ,  Palghat Ramesh ,  Fei Xiao

发明人： Michael Thompson ,  James Chappell ,  Steven Hart ,  Patrick Howe ,  Ajay Kumar ,  Steven LeRoy ,  Paul Morehouse ,  Palghat Ramesh ,  Fei Xiao

IPC分类号： G03G15/09

CPC分类号： G03G15/0935 ,  G03G2215/0634

摘要： A development subsystem is used to develop developer having semiconductive carrier particles and toner particles. The development subsystem includes a developer housing, for retaining a quantity of developer having semiconductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the first magnetic roll, a second magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the second magnetic roll, and a motor coupled to the first and the second magnetic rolls to drive the rotating sleeves of the first and the second magnetic rolls in a direction that is against the direction of a photoreceptor that rotates in proximity to the first and the second magnetic rolls. The first and the second magnetic rolls carry semiconductive carrier particles and toner particles through a development zone formed by the first and the second magnetic rolls.

摘要翻译： 开发子系统用于开发具有半导体载体颗粒和调色剂颗粒的显影剂。 开发子系统包括用于保持一定量的具有半导体载体颗粒和调色剂颗粒的显影剂的显影剂外壳，具有至少一个磁体的固定磁芯的第一磁性辊和围绕第一磁性辊的固定磁芯旋转的套筒， 第二磁辊，具有带有至少一个磁体的固定磁芯和围绕第二磁性辊的固定磁芯旋转的套筒，以及耦合到第一和第二磁性辊的电动机，以驱动第一和第二磁性辊的旋转套筒 在与第一和第二磁辊相邻的感光体的方向上的第二磁辊。 第一和第二磁辊通过由第一和第二磁辊形成的显影区域承载半导体载体颗粒和调色剂颗粒。

公开(公告)号：US20050250031A1

公开(公告)日：2005-11-10

申请号：US11083934

申请日：2005-03-21

申请人： Maria Mc Dougall ,  Richard Veregin ,  Vladislav Skorokhod ,  Mary Mc Stravick ,  Deepak Maniar ,  Paul Morehouse ,  Rachael Mc Grath ,  Jackie Parker ,  Shigang Qui ,  Mary Schlitzer ,  Michael Thompson ,  Christopher Pattison ,  Thomas Dombroski

发明人： Maria Mc Dougall ,  Richard Veregin ,  Vladislav Skorokhod ,  Mary Mc Stravick ,  Deepak Maniar ,  Paul Morehouse ,  Rachael Mc Grath ,  Jackie Parker ,  Shigang Qui ,  Mary Schlitzer ,  Michael Thompson ,  Christopher Pattison ,  Thomas Dombroski

IPC分类号： G03G9/08 ,  C09D1/04 ,  G03G9/087 ,  G03G15/00

CPC分类号： G03G9/08708 ,  G03G9/0823 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09725 ,  G03G9/1132

摘要： A developer includes black toner particles and carrier particles, the black toner particles including at least one binder, at least one black colorant and one or more external additives, wherein the toner particles comprise from about 7 to about 15 pph of the developer, and wherein the toner particles exhibit a triboelectric charge of from about −25 to about −50 μC/g at toner particle concentrations of about 7 to about 15 pph of the developer. The developer is ideally suited for use in a high speed (greater than 100 prints per minute) semiconductive magnetic brush development apparatus. Preferably, the black toner particles include a styrene acrylate binder, and the external additives include from about 1.3 to about 2.1% by weight of the toner particles of a first silica having an average particle size of from about 35 to about 45 nm, from about 0.5 to about 1.0% by weight of the toner particles of a second silica having an average particle size of from about 135 to about 160 nm, and from about 0.2 to about 0.5% by weight of the toner particles of a titania having an average particle size of from about 35 to about 45 nm, with an external additive toner surface area coverage of from about 25 to about 45%.

摘要翻译： 显影剂包括黑色调色剂颗粒和载体颗粒，黑色调色剂颗粒包括至少一种粘合剂，至少一种黑色着色剂和一种或多种外部添加剂，其中调色剂颗粒包含约7至约15pph的显影剂，其中 调色剂颗粒在约7至约15pph的显影剂的调色剂颗粒浓度下表现出约-25至约-50μC/ g的摩擦电荷。 该显影剂非常适用于高速（每分钟100印刷）半导电磁刷开发设备。 优选地，黑色调色剂颗粒包括苯乙烯丙烯酸酯粘合剂，并且外部添加剂包括约1.3至约2.1重量％的平均粒度为约35至约45nm的第一二氧化硅的调色剂颗粒，约 0.5至约1.0重量％的平均粒径为约135至约160nm的第二二氧化硅的调色剂颗粒和约0.2至约0.5重量％的具有平均颗粒的二氧化钛的调色剂颗粒 尺寸为约35至约45nm，外部添加剂调色剂的表面积覆盖率为约25至约45％。

公开(公告)号：US20070189793A1

公开(公告)日：2007-08-16

申请号：US11353259

申请日：2006-02-14

申请人： Bruce Thayer ,  Paul Morehouse ,  Michael Thompson

发明人： Bruce Thayer ,  Paul Morehouse ,  Michael Thompson

IPC分类号： G03G15/08 ,  G03G21/00

CPC分类号： G03G15/065 ,  G03G15/0813 ,  G03G21/0035 ,  G03G2215/0634 ,  G03G2221/0005

摘要： This is an electrophotographic marking system that effectively cleans residual toner and toner additives from the surface of a photoreceptor. This cleaning process reduces ghosting problems that had been encountered in final copies produced by electrophotographic systems such as in copiers, printers and duplicators. This cleaning is accomplished by expedients such as increasing a cleaning brush bias, and by increasing the surface area of cleaning brushes used in the system. In addition, the development process is desensitized to the development of ghosting. This desensitizing is accomplished by expedients such as increasing the gap between the development roll and the photoreceptor and by reducing the AC development electrical bias.

摘要翻译： 这是一种从感光体表面有效地清除残留调色剂和调色剂添加剂的电子照相打标系统。 这种清洁过程减少了由诸如复印机，打印机和复印机之类的电子照相系统产生的最终拷贝中遇到的重影问题。 这种清洁是通过诸如增加清洁刷偏压以及通过增加系统中使用的清洁刷的表面积来实现的。 另外，开发过程对于鬼影的发展是脱敏的。 这种脱敏通过诸如增加显影辊和感光体之间的间隙以及通过降低AC显影电偏压来实现。

公开(公告)号：US20050111893A1

公开(公告)日：2005-05-26

申请号：US10721845

申请日：2003-11-25

申请人： Mary McStravick ,  Paul Morehouse

发明人： Mary McStravick ,  Paul Morehouse

IPC分类号： G03G21/10 ,  A46B17/06 ,  G03G21/00

CPC分类号： G03G21/0035

摘要： An apparatus for removing charged particles from a surface, the surface being capable of movement, including: a conductive brush in contact with the surface, the conductive brush having a first region thereof having a first polarity and a second region having a second polarity; the conductive brush includes a core and conductive fibers attached thereto, the core being electrically segmented into the first region and the second region.