公开(公告)号：US06897001B2

公开(公告)日：2005-05-24

申请号：US10254519

申请日：2002-09-26

申请人： Kiyoshi Mizoe ,  Tsuyoshi Takiguchi ,  Fumihiro Arahira ,  Masanori Ito

发明人： Kiyoshi Mizoe ,  Tsuyoshi Takiguchi ,  Fumihiro Arahira ,  Masanori Ito

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/09

CPC分类号： G03G13/09 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G2215/021

摘要： A toner suitable for use in an image forming method including a contact charging step is provided. The toner includes: toner particles comprising at least a binder resin and a colorant, and fine particles. The fine particles comprise: (i) a tungsten-containing tin oxide, or (ii) base particles, and a tungsten-containing tin compound coating the base particles, the fine particles contain tin (Sn) in a weight ratio (Sn/b) of 0.01 to 2.0 with respect to the base particles (B). In the fine particles, tungsten (W) is contained in a mol ratio (W/Sn) of 0.001 to 0.3 with respect to the tin (Sn).

摘要翻译： 提供适用于包括接触充电步骤的图像形成方法的调色剂。 调色剂包括：至少包含粘合剂树脂和着色剂的调色剂颗粒和细颗粒。 细颗粒包括：（i）含钨氧化锡，或（ii）基础颗粒和涂覆基础颗粒的含钨锡化合物，细颗粒含有重量比（Sn / b）的锡（Sn） ）相对于基础颗粒（B）为0.01〜2.0。 在微粒中，相对于锡（Sn），钨（W）的摩尔比（W / Sn）为0.001〜0.3。

公开(公告)号：US20040219447A1

公开(公告)日：2004-11-04

申请号：US10858960

申请日：2004-06-02

发明人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

IPC分类号： G03G015/09

CPC分类号： B82Y15/00 ,  G03G9/083 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09733 ,  G03G13/09 ,  G03G2215/0013

摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.

公开(公告)号：US06757507B2

公开(公告)日：2004-06-29

申请号：US10020925

申请日：2001-12-19

申请人： Satoshi Mochizuki ,  Naohito Shimota ,  Hiroaki Matsuda ,  Shinichiro Yagi ,  Tomomi Tamura ,  Tatsuya Niimi

发明人： Satoshi Mochizuki ,  Naohito Shimota ,  Hiroaki Matsuda ,  Shinichiro Yagi ,  Tomomi Tamura ,  Tatsuya Niimi

IPC分类号： G03G1509

CPC分类号： G03G5/14708 ,  G03G5/005 ,  G03G5/0679 ,  G03G5/0696 ,  G03G5/14704 ,  G03G13/09

摘要： An image formation apparatus develops an electrostatic latent image with a two-component developer consisting of magnetic carriers and toners by using a development apparatus and a latent image supporter including a filler in an outermost layer thereof, the development apparatus having a developer supporter, which has an internally fixed magnetic body and rotates while supporting a developer on a surface thereof, and a developer quantity controller controlling a quantity of the developer which is supported by the developer supporter facing the magnetic body and controlling a height of magnetic brushes and consisting of materials having rigidity or rigidity and magnetic properties, wherein a ratio (Gp/Gd) of a development gap to a doctor gap between the developer supporter and the controller is from 0.7 to 1.0, and a weight-averaged particle diameter of a developer carrier is from 20 to 60 &mgr;m.

摘要翻译： 图像形成装置利用由磁性载体和调色剂组成的双组分显影剂，通过使用显影装置和在其最外层中包含填充剂的潜像载体来显影静电潜像，显影装置具有显影剂载体，该显影剂载体具有 一个内部固定的磁体并且在其表面上支撑显影剂的同时旋转，以及显影剂量控制器，其控制由与磁体相对的显影剂载体支撑的显影剂的量并控制磁刷的高度，并由具有 刚性或刚性和磁性，其中显影间隙与显影剂载体与控制器之间的刮刀间隙的比率（Gp / Gd）为0.7〜1.0，显影剂载体的重量平均粒径为20 至60岁

公开(公告)号：US06708015B2

公开(公告)日：2004-03-16

申请号：US10098591

申请日：2002-03-18

申请人： Hisao Kurosu ,  Shigekazu Enoki ,  Chikara Imai

发明人： Hisao Kurosu ,  Shigekazu Enoki ,  Chikara Imai

IPC分类号： G03G1509

CPC分类号： G03G13/09

摘要： A developing method of the present invention develops a latent image formed on an image carrier with a two-ingredient type developer, which consists of toner grains and magnetic carrier grains for supporting the toner grains. A developer carrier faces the image carrier and accommodates magnetic field forming device therein for causing the developer to deposit on the developer carrier. The developer is conveyed to a developing zone formed between the image carrier and the developer carrier. The latent image is developed by a magnet brush including free toner grains, which part from brush chains formed by the carrier grains when the brush chains start rising on the developer carrier in the developing zone. The method insures a high-density, smooth solid image. A device for practicing the method is also disclosed.

摘要翻译： 本发明的显影方法利用由调色剂颗粒和用于支撑调色剂颗粒的磁性载体颗粒组成的双成分型显影剂来形成在图像载体上形成的潜像。 显影剂载体面向图像载体并在其中容纳磁场形成装置，以使显影剂沉积在显影剂载体上。 将显影剂输送到形成在图像载体和显影剂载体之间的显影区域。 潜像通过包括自由调色剂颗粒的磁刷显影，该磁刷是当显影区上的显影剂载体上的刷链开始上升时由载体颗粒形成的刷链的部分。 该方法确保了高密度，平滑的实体图像。 还公开了一种用于实施该方法的装置。

公开(公告)号：US06650858B2

公开(公告)日：2003-11-18

申请号：US10184876

申请日：2002-07-01

申请人： Yuji Bessho

发明人： Yuji Bessho

IPC分类号： G03G1509

CPC分类号： G03G15/0126 ,  G03G13/09 ,  G03G2215/0177

摘要： A developing apparatus includes a first developing system for developing a latent image formed on an image bearing member with a first developer including magnetic toner. The first developing system includes a first developer carrying member for carrying and feeding the first developer to the image bearing member and a first magnetic field generating device disposed in the first developer carrying member. The developing apparatus further includes a second developing system develops a latent image formed on the image bearing member with a second developer including a magnetic carrier and non-magnetic toner while the developer contacts the image bearing member. The second developing system includes a second developer carrying member for carrying and feeding the developer to the image bearing member and a second magnetic field generating device disposed in the second developer carrying member. A magnetization intensity M&sgr; (Am2/kg) of the magnetic toner in an external magnetic field of 795.8 (kA/m) and a magnetization intensity C&sgr; (Am2/kg) of the magnetic carrier in the same external magnetic field, satisfy the following inequalities: 35

摘要翻译： 显影装置包括第一显影系统，用于利用包含磁性调色剂的第一显影剂使形成在图像承载部件上的潜像显影。 第一显影系统包括用于将第一显影剂输送并供给到图像承载部件的第一显影剂承载部件和设置在第一显影剂承载部件中的第一磁场产生装置。 显影装置还包括第二显影系统，当显影剂与图像承载部件接触时，利用包括磁性载体和非磁性调色剂的第二显影剂在图像承载部件上形成潜像。 第二显影系统包括用于将显影剂携带并供给到图像承载部件的第二显影剂承载部件和设置在第二显影剂承载部件中的第二磁场产生装置。 磁性调色剂在外部磁场中的磁化强度Msigma（Am2 / kg）为795.8（kA / m），磁性载体的磁化强度为Csigma（Am <2> / kg） 字段，满足以下不等式：

公开(公告)号：US20030190541A1

公开(公告)日：2003-10-09

申请号：US10403539

申请日：2003-03-31

发明人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

IPC分类号： G03G009/083

CPC分类号： B82Y15/00 ,  G03G9/083 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09733 ,  G03G13/09 ,  G03G2215/0013

摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.

公开(公告)号：US20030161666A1

公开(公告)日：2003-08-28

申请号：US10367427

申请日：2003-02-14

申请人： Konica Corporation

发明人： Kimio Nishizawa ,  Yutaka Miyasaka ,  Nobuyasu Tamura

IPC分类号： G03G015/09

CPC分类号： G03G13/09

摘要： In an image forming apparatus including a developing device, an inequality of 1null(null/100)nullVrnullHr1/3

摘要翻译： 在包括显影装置的图像形成装置中，满足1 <=（α/ 100）×VrxHr1 / 3 <3.5的不等式，其中Vr表示显影剂承载构件的外周面与外周的圆周速度比 图像承载部件的表面Hd表示显影剂承载部件的外周面与图像承载部件的外周面的间隔，Hh表示磁刷层的高度的平均值，Hr表示 平均值Hh相对于间隔Hd的平均值，并且α（％）表示磁刷层的面积以覆盖显影剂承载构件的外周表面至承载载体的外周表面的覆盖率 会员。

公开(公告)号：US06610451B2

公开(公告)日：2003-08-26

申请号：US09747764

申请日：2000-12-26

申请人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

发明人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

IPC分类号： G03G9083

CPC分类号： B82Y15/00 ,  G03G9/083 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09733 ,  G03G13/09 ,  G03G2215/0013

摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.

摘要翻译： 公开了使用磁性调色剂显影的显影系统和方法。 本发明还公开了用于显影系统中的显影剂以及用于磁性墨水字符识别印刷的显影剂中的调色剂。 关于显影系统，公开了一种开发系统，其包括供应含有磁性调色剂颗粒和硬磁性载体颗粒的干燥显影剂混合物。 显影系统还包括用于在供应和显影区域之间输送显影剂的非磁性圆柱形壳体，其中壳体可旋转或静止。 具有预选磁场强度的旋转磁芯和用于至少旋转磁芯以提供将调色剂颗粒从外壳传送到静电图像的装置，还提供作为显影系统的一部分。 例如涉及上述显影系统的方法进一步公开了一种用磁性调色剂显影静电图像的方法。 进一步描述了基于调色剂的重量，具有低28重量％或更少的磁载荷的磁性调色剂颗粒，其中这些磁性调色剂可以在磁性调色剂颗粒的表面上包括间隔剂。 进一步公开了含有本发明的磁性调色剂颗粒与硬磁性载体颗粒的显影剂。 还描述了其它显影剂组合物。

公开(公告)号：US20030118362A1

公开(公告)日：2003-06-26

申请号：US10316438

申请日：2002-12-11

申请人： Konica Corporation

发明人： Hiroshi Akita ,  Kunio Shigeta ,  Takenobu Kimura ,  Yotaro Sato

IPC分类号： G03G015/043 ,  G03G015/06 ,  G03G021/00

CPC分类号： G03G13/09 ,  G03G2215/0119

摘要： In an image forming apparatus, an electrostatic latent image is reverse-developed by a developing device with a development bias applied, through conveying a two-component developer layer containing toner particles having a volume-average particle diameter of 3 to 5 nullm by a developer carrying member rotatably provided, a developed toner image is transferred onto a recording medium or an intermediate transfer body, and untransferred toner particles remaining on an image forming body having passed a transfer region are removed by a cleaning member provided in pressure contact with the surface of the image forming body. The length in an axis direction of the image forming body of an useless toner image formed on the image forming body at the starting time and the ending time of an image formation sequence denoted by L, the total charge quantity of the toner particles making up the useless toner image is 0.04L nullC or less.

摘要翻译： 在图像形成装置中，通过施加显影偏压的显影装置将静电潜像逆向显影，通过用显影剂输送含有体积平均粒径为3〜5μm的调色剂颗粒的双组分显影剂层 显影的调色剂图像被转印到记录介质或中间转印体上，并且残留在已经通过转印区域的图像形成体上的未转印的调色剂颗粒通过与 图像形成体。 在由L表示的图像形成顺序的开始时间和结束时间，在图像形成体上形成的无用调色剂图像的图像形成体的轴向长度，构成调色剂颗粒的总电荷量 无用墨粉图像为0.04L muC以下。

公开(公告)号：US20030013032A1

公开(公告)日：2003-01-16

申请号：US10138840

申请日：2002-05-03

发明人： Robert D. Fields ,  Thomas J. Foster ,  Paul L. Nielsen ,  Thomas A. Jadwin ,  Dinesh Tyagi

IPC分类号： G03G013/09 ,  G03G015/09

CPC分类号： G03G9/1136 ,  G03G9/09708 ,  G03G9/09725 ,  G03G9/09733 ,  G03G9/1075 ,  G03G9/1133 ,  G03G9/1134 ,  G03G9/1135 ,  G03G13/09 ,  G03G13/20

摘要： Development systems and methods for developing using toner are disclosed. The present invention further discloses developers used in development systems. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. The development system of the present invention further includes a fuser roll which is coated with a silicone rubber or other low surface energy elastomer or resin. The fuser roll is preferably in a pressure contact arrangement with a backup or pressure roll. The images resulting from the development system of the present invention have an excellent combination of properties, in particular, the prints resulting from the development process of the present invention have improved image quality in combination with excellent fusing quality. A method for developing electrostatic images with toner is further disclosed, for example, involving the above-described development system.

摘要翻译： 公开了使用调色剂显影的显影系统和方法。 本发明还公开了开发系统中使用的开发者。 关于显影系统，公开了一种显影系统，其包括供给包含调色剂颗粒和硬磁性载体颗粒的干显影剂混合物。 显影系统还包括用于在供应和显影区域之间输送显影剂的非磁性圆柱形壳体，其中壳体可旋转或静止。 具有预选磁场强度的旋转磁芯和用于至少旋转磁芯以提供将调色剂颗粒从外壳传送到静电图像的装置，还提供作为显影系统的一部分。 本发明的显影系统还包括涂覆有硅橡胶或其它低表面能弹性体或树脂的定影辊。 定影辊优选地具有与备用或压力辊的压力接触装置。 由本发明的显影系统产生的图像具有优异的性能组合，特别是由本发明的显影过程产生的印刷品具有改进的图像质量以及优异的定影质量。 例如涉及上述显影系统的方法进一步公开了一种利用调色剂显影静电图像的方法。