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    • 1. 发明授权
    • Development apparatus employing magnetic field shapers
    • 采用磁场成形机的显影装置
    • US5283617A
    • 1994-02-01
    • US942866
    • 1992-09-10
    • Lawrence R. BenedictGary A. DentonFrancisco ZirilliJorge A. Alvarez
    • Lawrence R. BenedictGary A. DentonFrancisco ZirilliJorge A. Alvarez
    • A61K20060101C07C20060101C07C57/50C07D307/83C07D311/20C07D311/22C07D311/24C07D311/74C07D311/76C07D405/12C07D407/12G03G15/09
    • C07C57/50C07D307/83C07D311/22C07D311/24C07D311/76C07D405/12C07D407/12
    • An electrophotographic printing machine in which an electrostatic latent image is recorded on a moving photoconductive surface by charging the appropriate areas of the surface to predetermined polarities. The latent image is a developed in a development zone with toners of a preselected color and predetermined polarity which are delivered by magnetic bead carriers. A bead removal device is provided adjacent the surface and downstream from the development zone relative to the movement of the surface. The bead removal device magnetically attracts carrier beads off the photoconductive surface. The beads are then deposited in a sump. A vacuum source is also provided for urging beads into the sump from the surface. The bead removal device comprising a sleeve mounted for rotation in a housing, adjacent the surface. The sleeve has a fixed magnet disposed proximate the surface therein and a shunt disposed generally opposite the magnet to define an attraction zone and a release zone. The vacuum source has a port proximate the release zone for drawing beads thereto and the housing can be ultimately formed to have a large aperture or relatively small aperture to urge beads on and near the photoconductive surface to the small aperture.
    • 一种电子照相印刷机,其中通过将表面的适当区域充电至预定极性,将静电潜像记录在移动的光电导表面上。 潜像是在开发区中开发的,其具有通过磁珠载体递送的预选颜色和预定极性的调色剂。 相对于表面的运动,邻近开发区的表面和下游设置有珠去除装置。 珠去除装置磁性吸引载流子珠离开光电导表面。 然后将珠子沉积在贮槽中。 还提供了一个真空源,用于从表面推动小球进入贮槽。 珠去除装置包括安装成在壳体中旋转的套筒,邻近表面。 套筒具有靠近其表面设置的固定磁体和大体上与磁体相对设置的分流器,以限定吸引区域和释放区域。 真空源具有靠近释放区的端口,用于将珠子拉到其上,并且壳体可以最终形成为具有大的孔径或相对较小的孔口,以将光电导表面上和附近的珠推进到小孔。
    • 2. 发明授权
    • Development apparatus employing magnetic field shapers
    • 采用磁场成形机的显影装置
    • US5280323A
    • 1994-01-18
    • US814171
    • 1991-12-30
    • Jorge A. AlvarezGary A. DentonPeter J. McGuireFrancisco Zirilli
    • Jorge A. AlvarezGary A. DentonPeter J. McGuireFrancisco Zirilli
    • A61K20060101C07C20060101C07C57/50C07D307/83C07D311/20C07D311/22C07D311/24C07D311/74C07D311/76C07D405/12C07D407/12G03G15/09
    • C07C57/50C07D307/83C07D311/22C07D311/24C07D311/76C07D405/12C07D407/12
    • An electrophotographic printing machine in which an electrostatic latent image is recorded on a photoconductive surface by charging the appropriate areas of the surface to predetermined polarities. The latent image is a developed with toners of a preselected color and predetermined polarity by a developer unit. The developer unit includes a bead removal device which magnetically attracts carrier beads off the photoconductive surface and deposits these beads in a sump or reservoir of developer. The bead removal device includes a magnet and magnetic field shapers to enhance the magnetic fields which attract the beads in the zone between the surface and the bead removal device and attenuates the magnetic fields in the zone between the bead removal device and the sump or reservoir to reduce the attraction between the beads and the bead removal device in this zone. The invention also provides magnetic brush rollers for the delivery of toner to the photoconductive surface which have magnetic field shapers which attenuate the magnetic fields to encourage bead release from the roller and reduce attraction of beads to the roller in reverse rotation of the roller.
    • 一种电子照相印刷机,其中通过将表面的适当区域充电至预定极性,将静电潜像记录在光电导表面上。 潜像是用显影剂单元开发出的具有预选颜色和预定极性的调色剂。 显影剂单元包括珠粒去除装置,其磁吸引载体珠子离开光电导表面并将这些珠子沉积在显影剂的贮槽或贮存器中。 珠去除装置包括磁体和磁场成形器,以增强吸引表面和珠粒移除装置之间的区域中的珠粒的磁场,并且使珠粒移除装置和贮槽或储存器之间的区域中的磁场衰减 减少该区域中的珠粒和珠粒去除装置之间的吸引力。 本发明还提供了用于将调色剂输送到光电导表面的磁刷辊,其具有磁场成形器,该磁场成形器使磁场衰减,以促进从滚筒释放珠子,并减少滚珠反向滚动时珠子对辊的吸引。
    • 4. 发明授权
    • Liquid electrophotographic reproduction machine employing heated carrier
liquid
    • 液体电子照相复制机采用加热载液
    • US5574547A
    • 1996-11-12
    • US473808
    • 1995-06-07
    • Gary A. DentonJohn F. KnappJames R. LarsonDamodar M. Pai
    • Gary A. DentonJohn F. KnappJames R. LarsonDamodar M. Pai
    • G03G15/10
    • G03G15/104
    • In accordance with the present invention, there is provided in a liquid electrophotographic reproduction machine, a development unit for developing latent images on an image bearing member using liquid developer material. The development unit includes a housing defining a liquid developer material holding chamber, and a quantity of liquid developer material contained within the chamber. The quantity of developer material includes carrier liquid and charged toner particles dispersed within the quantity of carrier liquid. The development unit also includes a heating element located inside the quantity of developer material for heating the quantity of developer material. The quantity of developer material when heated has a desired elevated temperature within a range of 50 to 60 degrees centigrade for improved developability without causing toner particle agglomeration.
    • 根据本发明,提供了一种液体电子照相再现机,用于使用液体显影剂材料在图像承载部件上显影潜像的显影单元。 显影单元包括限定液体显影剂材料保持室的壳体和容纳在室内的一定量的液体显影剂材料。 显影剂材料的量包括载体液体和分散在载体液体中的带电调色剂颗粒。 显影单元还包括位于显影剂材料量内的加热元件,用于加热显影剂材料的量。 加热时的显影剂材料的量在50至60摄氏度的范围内具有所需的升高温度,以提高显影性而不会引起调色剂颗粒聚集。
    • 5. 发明授权
    • Apparatus for detecting marking material
    • 用于检测标记材料的装置
    • US5666194A
    • 1997-09-09
    • US655587
    • 1996-05-30
    • Gary A. Denton
    • Gary A. Denton
    • G01N21/55G03G15/00G03G21/00
    • G03G15/5041G01N21/55G03G2215/00042
    • An apparatus which detects a mass of marking material developed on a test patch recorded on a photoconductive surface. The apparatus includes a densitometer, a capacitor sensor and a controller. The densitometer is spaced from and adjacent to the photoconductive surface. The capacitor sensor is also positioned adjacent to the photoconductive surface and spaced therefrom. In operation, the densitometer generates a first signal proportional to the specular component of the total reflectivity of the material deposited on the test patch developed on the photoconductive surface. The capacitor sensor generates a second signal proportional to the mass of material developed on the test patch recorded on the surface. In response to these signals, the controller generates a first control signal as a function of the first signal received from the densitometer in response to the mass of material deposited on the test patch being less than a preselected mass. When the mass deposited on the test patch is greater than the preselected mass, the controller generates a second control signal as a function of the second signal received from the capacitor sensor. In this way, a continuous signal is transmitted from the controller independent of the color of the material developed on the test patch.
    • 一种检测在记录在光导表面上的测试贴片上显影的标记材料的质量的装置。 该装置包括密度计,电容传感器和控制器。 光密度计与光导表面间隔开并与之相邻。 电容传感器也位于光电导表面附近并与之隔开。 在操作中,密度计产生与沉积在光电导表面上显影的测试贴片上的材料的总反射率的镜面反射率成比例的第一信号。 电容传感器产生与记录在表面上的测试贴片上显影材料质量成比例的第二信号。 响应于这些信号,控制器响应于沉积在测试贴片上的材料的质量小于预先选择的质量,产生作为从密度计接收的第一信号的函数的第一控制信号。 当沉积在测试片上的质量大于预选质量时,控制器产生作为从电容器传感器接收的第二信号的函数的第二控制信号。 以这种方式,连续信号从控制器发送,而与测试贴片上显影的材料的颜色无关。
    • 8. 发明授权
    • Method of compensating for low toner consumption
    • 补偿低碳粉消耗的方法
    • US06792218B2
    • 2004-09-14
    • US10167376
    • 2002-06-11
    • Stanley C. Tungate, Jr.Cary RavitzThomas G. TwardeckAlbert M. Carter, Jr.Gary A. Denton
    • Stanley C. Tungate, Jr.Cary RavitzThomas G. TwardeckAlbert M. Carter, Jr.Gary A. Denton
    • G03G1508
    • G03G15/08G03G15/50G03G21/0005
    • Artificial toner consumption is triggered to minimize the incidence of “conditioned” toner when a comparison of the rate of toner consumption to the mechanical activity of the electrophotographic printing device indicates that the toner consumption rate is too low. The artificial toner consumption operation may be achieved through a dummy print operation where an intentionally un-printed image is formed on a photoconductive drum, but the corresponding toner is routed to appropriate waste toner reservoir(s) and the image is not printed on the recording medium. The dummy print toner may be cleaned from the photoconductive drum without being transferred to an intermediate transfer medium and/or may be cleaned from the intermediate transfer medium, both without transferring the toner to the recording medium. The dummy print operation may correspond to a next normally occurring interdocument gap or a dedicated dummy print period inserted between print jobs.
    • 当比较调色剂消耗速率与电子照相印刷装置的机械活性相比显示调色剂消耗率太低时,触发人造墨粉消耗以最小化“调理”调色剂的发生率。 可以通过虚拟打印操作来实现人造墨粉消耗操作,其中在感光鼓上形成有意未打印的图像,但是相应的调色剂被路由到适当的废调色剂储存器,并且图像不被打印在记录 中。 可以从感光鼓清洁虚拟打印碳粉,而不转移到中间转印介质和/或可以从中间转印介质清洁,而不将调色剂转印到记录介质上。 虚拟打印操作可以对应于插入在打印作业之间的下一个正常发生的文档间隙或专用的虚拟打印时段。
    • 9. 发明授权
    • Self-cleaning liquid developing material applicator
    • 自清洁液体显影材料涂布器
    • US5737672A
    • 1998-04-07
    • US535429
    • 1995-09-28
    • Gary A. DentonPaul W. Morehouse, Jr.John M. Simpson, III
    • Gary A. DentonPaul W. Morehouse, Jr.John M. Simpson, III
    • G03G21/10G03G15/10G03G15/11
    • G03G15/101
    • An apparatus for developing an electrostatic latent image on an imaging member with a liquid developing material, including a liquid developing material applicator, the housing defining an aperture adapted for transporting liquid developing material into contact with the imaging member, the housing further including a planar surface adjacent the aperture for providing a liquid developing material application region in which the liquid developing material can flow freely with the imaging member; a developing roll situated adjacent the liquid developing material applicator and downstream therefrom relative to a path of travel of the imaging member; and a cleaning system, operatively coupled to the liquid developing material applicator, for cleaning residue liquid developer material from the liquid developing material applicator and the developing roll.
    • 一种用液体显影材料在成像构件上显影静电潜像的装置,包括液体显影材料施加器,所述壳体限定适于将液体显影材料输送到成像构件的孔,所述壳体还包括平面 邻近所述孔,用于提供液体显影材料施加区域,其中所述液体显影材料可以与所述成像构件自由流动; 显影辊相对于成像构件的行进路径邻近液体显影材料施加器并在其下游定位; 以及清洁系统,其可操作地耦合到液体显影材料施加器,用于从液体显影材料施加器和显影辊清洁残余液体显影剂材料。
    • 10. 发明授权
    • Liquid immersion development machine having a development system adapted
to compensate for copy paper roughness
    • 具有适于补偿复印纸粗糙度的显影系统的液浸式显影机
    • US5689761A
    • 1997-11-18
    • US720285
    • 1996-09-26
    • Gary A. DentonHenry R. Till
    • Gary A. DentonHenry R. Till
    • G03G15/10G03G15/00
    • G03G15/101
    • A development system for developing a latent image so as to compensate for differences in the surface roughness of different types of copy papers receiving the developed image. The development system includes a development unit for each color of toner particles being used within the machine for latent image development. Each development unit has a first developer material supply source, and a second developer material supply source, containing respectively a first developer material and a second developer material of a same color. In order to more fully correct for hue and density differences in images of the same color developed and transferred onto rough versus smooth surface type copy papers, the first developer material importantly contains a higher level of pigmentation than the second developer material.
    • 用于显影潜像的显影系统,以补偿接收显影图像的不同类型的复印纸的表面粗糙度的差异。 显影系统包括用于潜像显影机内的调色剂颗粒的每种颜色的显影单元。 每个显影单元具有第一显影剂材料供应源和第二显影剂材料供应源,分别含有相同颜色的第一显影剂材料和第二显影剂材料。 为了更完整地校正在粗糙和平滑表面型复印纸上显影和转移的相同颜色的图像中的色相和密度差异,第一显影剂材料重要地包含比第二显影剂材料更高水平的着色。