Grounding device for use in an image forming machine
    99.
    发明公开
    Grounding device for use in an image forming machine 失效
    在图像形成装置中使用接地部分

    公开(公告)号:EP0777325A3

    公开(公告)日:1998-01-14

    申请号:EP96308574.1

    申请日:1996-11-28

    CPC classification number: H03H1/0007

    Abstract: A grounding device for use with an image forming machine comprises an electrically conductive member (4), and radio wave absorbing means (6) associated with the electrically conductive member (4). The electrically conductive member comprises a metal plate or a metal bar. The radio wave absorbing means (6) comprises radio wave absorbing member containing sintered ferrite or ferrite particles, a radio wave absorbing sheet piece containing ferrite particles or a radio wave absorbing paint containing ferrite particles.

    Toner for two-component type developer
    100.
    发明公开
    Toner for two-component type developer 失效
    TonerfürZweikomponentenentwickler

    公开(公告)号:EP0813118A2

    公开(公告)日:1997-12-17

    申请号:EP97303745.0

    申请日:1997-06-03

    Abstract: There is provided a toner for a two-component type developer, which comprises (i) toner particles comprising a fixing resin having anionic polar groups, a coloring agent, and a magnetic powder which is used in an amount of 0.1 to 5 parts by weight for 100 parts by weight of the fixing resin, and (ii) an additive comprising silica, alumina and titania, and being adhered on surfaces of the toner particles in a total amount of 0.15 to 2 parts by weight for 100 parts by weight of the toner particles, and contains substantially no charge control agent. The toner exhibits a stable chargeability during a long-term use without generation of a spent toner. As a result, the toner suppresses the image fogging and the toner scattering, and ensures a stable image density and a high image quality for a long term.

    Abstract translation: 提供了一种用于双组分型显影剂的调色剂,其包含(i)包含具有阴离子极性基团的固定树脂,着色剂和磁性粉末的调色剂颗粒,其用量为0.1至5重量份 对于100重量份的固定树脂,和(ii)包含二氧化硅,氧化铝和二氧化钛的添加剂,并且对于100重量份的所述调色剂颗粒的总量为0.15至2重量份,粘附在调色剂颗粒的表面上 调色剂颗粒,并且基本上不含电荷控制剂。 调色剂在长期使用中表现出稳定的带电性,而不会产生用过的调色剂。 结果,调色剂抑制图像起雾和调色剂飞散,从而长期保证图像密度稳定和图像质量高。

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