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热词
    • 42. 发明授权
    • Image forming apparatus for forming a master copy
    • 用于形成主副本的图像形成装置
    • US5140370A
    • 1992-08-18
    • US493292
    • 1990-03-14
    • Toshihiro KasaiShigeru FujiwaraTatsuya Tsujii
    • Toshihiro KasaiShigeru FujiwaraTatsuya Tsujii
    • G03G15/05G03G15/22G03G19/00
    • G03G15/228G03G19/00
    • An image forming apparatus having a static latent image forming unit for forming a static latent image corresponding to an original image on an image carrying member, a first developing unit for developing the static latent image, formed by the static latent image forming unit, by a first magnetic developing agent containing a magnetizable magnetic material, so as to form a first developing agent image, a fixing unit for fixing the first developing agent image, formed by the first developing unit, on the image carrying member, a magnetizing unit for magnetizing the first developing agent image fixed by the fixing unit, so as to form a magnetic latent image, a second developing unit for developing the magnetic latent image by a second magnetic developing agent whose magnetic material content is lower than that of the first magnetic developing agent, so as to form forming a second developing agent image, and a transferring unit for transferring the second developing agent image to a recording medium.
    • 一种图像形成装置,具有用于在图像承载部件上形成与原始图像相对应的静电潜像的静电潜像形成单元,由静电潜像形成单元形成的用于显影静电潜像的第一显影单元, 包含可磁化磁性材料的第一磁性显影剂,以形成第一显影剂图像;固定单元,用于将由第一显影单元形成的第一显影剂图像固定在图像承载构件上;磁化单元,用于将 由固定单元固定的第一显影剂图像以形成磁潜像;第二显影单元,用于通过磁性材料含量低于第一磁性显影剂的第二磁性显影剂显影磁潜像, 以形成第二显影剂图像;以及转印单元,用于将第二显影剂图像转印回 流动媒介。