Composite image recording apparatus
    11.
    发明授权
    Composite image recording apparatus 失效
    复合图像记录装置

    公开(公告)号:US4937629A

    公开(公告)日:1990-06-26

    申请号:US230745

    申请日:1988-08-10

    摘要: An image forming method of the present invention comprises: a first toner image formation process for forming a first toner image by forming, on a latent image carrier, a first latent image which corresponds to a first image and developing the first latent image by a first toner charged to one polarity through a development process selected from normal and reverse development process selected from normal and reverse development processes so as to correspond to the polarity of the first toner; a second toner image formation process for forming a second toner image by forming, on the latent image carrier, a second latent image which correspond to a second image and developing the second latent image by a second toner charged to the other polarity by the other development process while applying a developing bias; and a transfer treatment process for simultaneously transferring said first and second toner images to a transfer medium; wherein said developing bias VB2 satisfies the following equations:.vertline.VT1-VB2.vertline.>.vertline.VH2-VB2.vertline. . . . (1).vertline.VT1-VB2.vertline.>.vertline.VT1-VH2.vertline. . . . (2)where a surface potential of said first toner image is VT1, a background potential in said second toner image forming process is VH2, and the developing bias in said second toner image forming process is VB2.

    摘要翻译: 本发明的图像形成方法包括:第一调色剂图像形成工艺,用于通过在潜像载体上形成与第一图像相对应的第一潜像并通过第一图像显影第一潜像来形成第一调色剂图像 调色剂通过选自正常和反向显影过程的正常和反向显影过程的显影过程充电至一个极性,以便对应于第一调色剂的极性; 第二调色剂图像形成工艺,用于通过在潜像载体上形成与第二图像相对应的第二潜像并通过另一显影剂以另一极性带电的第二调色剂显影第二潜像来形成第二调色剂图像 同时应用发展中的偏见; 以及用于将所述第一和第二调色剂图像同时转印到转印介质的转印处理过程; 其中所述显影偏压VB2满足以下等式:| VT1-VB2 ||VH2-VB2|。 。 。 (1)| VT1-VB2 |> | VT1-VH2 |。 。 。 (2)其中所述第一调色剂图像的表面电位为VT1,所述第二调色剂图像形成处理中的背景电位为VH2,并且所述第二调色剂图像形成处理中的显影偏压为VB2。

    Image recording apparatus and method with improved image transfer characteristics
    12.
    发明授权
    Image recording apparatus and method with improved image transfer characteristics 失效
    具有改善图像传输特性的图像记录装置和方法

    公开(公告)号:US06650853B1

    公开(公告)日:2003-11-18

    申请号:US08753475

    申请日:1996-11-26

    IPC分类号: G03G1522

    CPC分类号: G03G15/22

    摘要: An image recording apparatus includes an image carrying part, a developing part and an image transferring part. The image carrying part has a surface on which an electrostatic latent image is formed. The developing part develops the electrostatic image into a toner image by selectively applying toner to the surface of the image carrying part. The image transferring part transfers the toner image onto a recording sheet or an intermediate image transferring part. Fine particles are uniformly formed on the surface of the image carrying part, and a portion of the fine particles is transferred from the image carrying part with the toner image. The fine particles are smaller in diameter than the toner particles.

    摘要翻译: 图像记录装置包括图像承载部分,显影部分和图像转印部分。 图像承载部分具有形成有静电潜像的表面。 显影部分通过选择性地将调色剂施加到图像承载部件的表面来将静电图像显影成调色剂图像。 图像转印部分将调色剂图像转印到记录纸或中间图像转印部分上。 在图像承载部件的表面上均匀地形成微细颗粒,并且使用调色剂图像将一部分微粒从图像承载部分转印。 细颗粒的直径小于调色剂颗粒。

    Dual-component magnetic brush developing device
    14.
    发明授权
    Dual-component magnetic brush developing device 失效
    双组分磁刷显影装置

    公开(公告)号:US5752139A

    公开(公告)日:1998-05-12

    申请号:US754935

    申请日:1996-11-25

    IPC分类号: G03G15/09 G03G15/095

    摘要: A dual-component magnetic brush developing device using a dual-component developer containing magnetic carriers and toner electrically attracted to the magnetic carriers. The dual-component magnetic brush developing device comprises: a magnetic field generation member being formed with a plurality of magnetic poles almost equally spaced from each other on a peripheral surface; a developer transport member being supported outside the magnetic field generation member for circumferential rotation and moving together with the magnetic field generation member at least in a developing area facing the image carrier in the proximity thereof; toner supply means for supplying an excess of new toner to magnetic carriers supported on the developer transport member and passing through the developing area; magnetic field reduction unit for reducing a magnetic field strength in the vicinity of a surface of the developer transport member by an agitation section for agitating the developer to which the excessive toner is supplied; and excessive toner separation unit being disposed downstream from the agitation section in a circumferential rotation direction of the developer transport member for separating excessive toner from the magnetic carriers supported on the developer transport member.

    摘要翻译: 一种双组分磁刷显影装置,其使用包含磁性载体的双组分显影剂和电吸引到磁性载体的调色剂。 双组分磁刷显影装置包括:磁场产生部件,其形成有在周面上彼此几乎相等间隔的多个磁极; 显影剂传送构件被支撑在磁场产生构件的外部用于周向旋转,并且至少在与图像载体邻接的显影区域中与磁场产生构件一起移动; 用于将过量的新调色剂供给到支撑在显影剂传送构件上并通过显影区域的磁性载体的调色剂供应装置; 磁场减少单元,用于通过用于搅拌供给过量调色剂的显影剂的搅拌部降低显影剂传送部件表面附近的磁场强度; 并且过量的调色剂分离单元设置在显影剂传送构件的周向旋转方向的下游的搅拌部分,用于将过量的调色剂与支撑在显影剂传送构件上的磁性载体分离。