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热词
    • 6. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US4956679A
    • 1990-09-11
    • US185164
    • 1988-04-22
    • Yoshiaki TakanoNorihiko Suzuki
    • Yoshiaki TakanoNorihiko Suzuki
    • G03G15/01G03G15/09
    • G03G15/01G03G15/09
    • An image forming apparatus including an electrostatic latent image support member, a device for forming the electrostatic latent image on the support member, first and second developing devices for containing first and second developers, respectively, first and second prevention devices for preventing developing operations of the first and second developing devices, respectively, a region designating device for designating, in the electrostatic latent image, first and second regions to be developed by the first and second developers, respectively and a control device for actuating the first and second prevention devices in response to a signal from the region designating device so as to prevent the developing operations of the first and second developing devices.
    • 一种图像形成装置,包括静电潜像支撑构件,用于在支撑构件上形成静电潜像的装置,分别容纳第一和第二显影剂的第一和第二显影装置,用于防止第一和第二显影剂的显影操作的第一和第二防止装置 第一和第二显影装置,分别用于指定静电潜像中由第一和第二显影剂分别显影的第一和第二区域的区域指定装置和用于响应于致动第一和第二防止装置的控制装置 涉及来自区域指定装置的信号,以便防止第一和第二显影装置的显影操作。