Electrophotographic apparatus capable of forming images in different
colors
    2.
    发明授权
    Electrophotographic apparatus capable of forming images in different colors 失效
    能够形成不同颜色图像的电子照相设备

    公开(公告)号:US4831408A

    公开(公告)日:1989-05-16

    申请号:US82519

    申请日:1987-08-07

    IPC分类号: G03G13/01

    CPC分类号: G03G13/01

    摘要: An electrophotographic apparatus includes a movable electrophotographic photosensitive member, a charger for uniformly charging the photosensitive member, a first device for forming a first electrostatic latent image by exposing the photosensitive member charged by the charger to negative image light corresponding to first image information, a first developing device for developing through a reversal development the first electrostatic latent image into a first visualized image, a second device for exposing the photosensitive member having the first visualized image to positive image light corresponding to second image information to form a second electrostatic latent image, a second developing device for developing through a regular development the second electrostatic latent image into a second visualized image, wherein a potential level in an area of the photosensitive member exposed to the light by the second device is between a potential level in an area of the photosensitive member exposed to the light by the first electrostatic latent image forming device and a potential level in a non-exposed area of the photosensitive member, and is between a potential level of the first visualized image and the level of non-exposed area.

    摘要翻译: 电子照相设备包括可移动电子照相感光构件,用于使感光构件均匀充电的充电器,用于通过将由充电器充电的感光构件暴露于对应于第一图像信息的负像光来形成第一静电潜像的第一装置, 用于通过将第一静电潜像反转显影成第一可视化图像的显影装置,用于将具有第一可视图像的感光构件曝光到对应于第二图像信息的正像光以形成第二静电潜像的第二装置, 第二显影装置,用于通过将第二静电潜像规则地显影成第二可视化图像,其中通过第二装置暴露于光的感光构件的区域中的电位电平处于感光区域中的电位水平之间 膜 通过第一静电潜像形成装置暴露于光并且在感光构件的未曝光区域中的电位水平处于第一可视图像的电位水平和未曝光区域的水平之间。

    Apparatus for processing sheets and apparatus for forming images provided with the same

    公开(公告)号:US10259673B2

    公开(公告)日:2019-04-16

    申请号:US15883990

    申请日:2018-01-30

    摘要: A sheet processing apparatus includes a transport path to transport a sheet to a first tray, a branch path branched off from the transport path to transport a sheet to a second tray, a first transport roller positioned in the transport path on a downstream side of a branch position of the transport path and the branch path to transport a sheet in either direction of the first tray or the branch path, a second transport roller positioned on the branch path to transport a sheet in either direction of the second tray or the transport path, and a control section recognizing a transport length of the sheet transported by the first transport roller and the second transport roller, and controlling the first transport roller and the second transport roller. The control section performs first and second transports for switchback-transporting a sheet.