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    • 7. 发明授权
    • Copying apparatus capable of forming a composite image of an outline
image and a normal image
    • 能够形成轮廓图像和正常图像的合成图像的复印装置
    • US4866474A
    • 1989-09-12
    • US147323
    • 1988-01-22
    • Naoyoshi KinoshitaToshikazu HigashiYasuyuki MatsuuchiYoshihiko HattaMasazumi Ito
    • Naoyoshi KinoshitaToshikazu HigashiYasuyuki MatsuuchiYoshihiko HattaMasazumi Ito
    • G03G15/00G03G15/01G03G15/045G03G15/36
    • G03G15/50G03G15/01G03G15/045G03G15/36
    • Copying apparatus is provided in which outline copying for only a designated area of an original image can be easily selected. An area for the outline copying can be designated and images inside and outside the designated area can be copied in different colors. The arrangement includes a plurality of keys for designating an area of an original image to be copied and a scorotron charger for causing a potential in areas other than the outline portions of an electrostatic latent image, formed on a photoreceptor drum, to be substantially equal to a potential in an area containing the image. An eraser unit is provided for erasing the charge in an area where development is not required and a developing device develops the electrostatic latent image. A transfer charger is provided for transferring the image developed by the developing device onto copying paper. When an area of the original images designated and an outline image forming mode is selected by the operator of the machine, two copy operations are performed to composite an outlined image formed inside or outside the designated area and a normal image formed in the area which does not include the outline image so that a composite image is copied onto the copy paper.
    • 提供了复制设备,其中可以容易地选择仅原始图像的指定区域的轮廓复制。 可以指定轮廓复制的区域,并且可以以不同的颜色复制指定区域内外的图像。 该装置包括用于指定要复制的原始图像的区域的多个键和用于使形成在感光鼓上的静电潜像的除了轮廓部分之外的区域中的电位大致等于 在包含图像的区域中的潜力。 提供了一种擦除单元,用于在不需要显影的区域中擦除电荷并且显影装置显影静电潜像。 提供转印充电器,用于将由显影装置显影的图像转印到复印纸上。 当指定的原始图像的区域和轮廓图像形成模式被机器的操作者选择时,执行两次复印操作以复合在指定区域内部或外部形成的轮廓图像和在该区域中形成的正常图像 不包括轮廓图像,以便将复合图像复制到复印纸上。
    • 8. 发明授权
    • Image forming apparatus having a plurality of developing units each
containing two-component developer
    • 图像形成装置具有多个显影单元,每个显影单元均包含双组分显影剂
    • US4955317A
    • 1990-09-11
    • US357894
    • 1989-05-25
    • Naoyoshi KinoshitaYoshihiko Hatta
    • Naoyoshi KinoshitaYoshihiko Hatta
    • G03G15/08
    • G03G15/0853G03G15/0849
    • An electrophotographic image forming apparatus employing a two-component developer including toner and carrier comprises: a developing unit containing the developer; a toner concentration sensor provided on the developing unit for detecting the concentration of the toner included in the developing unit; a comparing apparatus for comparing a value detected by the toner concentration sensor with a prescribed concentration reference value; a supplying apparatus for supplying toner to the developing unit; a controlling apparatus for controlling toner supply by the supplying apparatus based on the result of comparison by the comparing apparatus; and a detecting apparatus for detecting whether or not a detachable member whose attachment influences the detection of the toner concentration sensor is attached near the developing unit. The controlling apparatus changes the amount of toner supply by the supplying apparatus based on detected value from the toner concentration sensor in response to the detection output from the detecting apparatus.
    • 使用包括调色剂和载体的双组分显影剂的电子照相成像设备包括:显影单元,其包含显影剂; 调色剂浓度传感器,设置在显影单元上,用于检测包含在显影单元中的调色剂的浓度; 比较装置,用于将由调色剂浓度传感器检测的值与规定的浓度参考值进行比较; 用于向显影单元供应调色剂的供应装置; 控制装置,用于根据比较装置的比较结果控制供给装置的调色剂供给; 以及检测装置,用于检测附着影响调色剂浓度传感器的检测的可拆卸构件是否附着在显影单元附近。 控制装置响应于来自检测装置的检测输出,基于来自调色剂浓度传感器的检测值来改变供给装置的调色剂供给量。