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    Development apparatus having donor member with alternated electrodes of opposite polarisation.
    2.
    发明公开
    Development apparatus having donor member with alternated electrodes of opposite polarisation. 有权
    Entwicklungsvorrichtung mit Donorelemet mit abwechselnden ElektrodengegensätzlicherPolarität

    公开(公告)号：EP1775642A1

    公开(公告)日：2007-04-18

    申请号：EP06021341.0

    申请日：2006-10-11

    申请人： Ricoh Company, Ltd.

    发明人： Tsukamoto, Takeo ,  Kondoh, Nobuaki ,  Masanori, Horike ,  Takahashi, Tomoko ,  Masaaki, Yamada ,  Kosugi, Hideki ,  Kadota, Ichiro ,  Nakagawa, Yoshinori ,  Ishii, Yasuyuki

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818 ,  G03G2215/0621

    摘要： An apparatus for developing a latent image on a latent image carrier (7,8) includes a toner carrier (1,3) and multiple electrodes (21,22,23,24) arranged at intervals (P) on a surface of the toner carrier. A potential difference is formed between even-numbered electrodes (22,24,...) and odd-numbered electrodes (21,23,...) of the electrodes by applying a first pulse voltage to the even-numbered electrodes and a second pulse voltage to the odd-numbered electrodes so that toner on the surface of the toner carrier moves back and forth between the electrodes, where the first and second pulse voltages are in different phases, in particular of opposite phase, and the toner moving back and forth between the electrodes is conveyed to a position facing the latent image carrier by movement of the surface of the toner carrier and thereby caused to adhere to the latent image on the latent image carrier.

    摘要翻译： 用于在潜像载体（7,8）上显影潜像的装置包括调色剂载体（1,3）和在调色剂表面上以间隔（P）布置的多个电极（21,22,23,24） 载体。 通过向偶数电极施加第一脉冲电压，在偶数电极（22,24，...）和奇数电极（21,23 ...）之间形成电位差，并且 第二脉冲电压到奇数电极，使得调色剂载体表面上的调色剂在电极之间来回移动，其中第一和第二脉冲电压处于不同的相位，特别是相反相位，并且调色剂向后移动 通过调色剂载体的表面的移动，电极之间和之间的距离被传送到面向潜像载体的位置，从而附着在潜像载体上的潜像上。