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    • 4. 发明授权
    • Electrophotographic toner and development process with improved image and fusing quality
    • 电子照相色调和显影过程具有改进的图像和融合质量
    • US06797448B2
    • 2004-09-28
    • US10138840
    • 2002-05-03
    • Robert D. FieldsThomas J. FosterPaul L. NielsenThomas A. JadwinDinesh Tyagi
    • Robert D. FieldsThomas J. FosterPaul L. NielsenThomas A. JadwinDinesh Tyagi
    • G03O1509
    • G03G9/1136G03G9/09708G03G9/09725G03G9/09733G03G9/1075G03G9/1133G03G9/1134G03G9/1135G03G13/09G03G13/20
    • 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.
    • 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。