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13 条记录 (耗时 0.011 秒)

    Carrier for developer
    2.
    发明公开
    Carrier for developer 失效
    TrägerfürEntwickler。

    公开(公告)号：EP0447153A1

    公开(公告)日：1991-09-18

    申请号：EP91302001.2

    申请日：1991-03-11

    申请人： MITA INDUSTRIAL CO., LTD.

    发明人： Komata, Hiroshi ,  Tsuji, Nobuyuki ,  Kimura, Takahiko ,  Asada, Hidenori ,  Yamada, Shigeki

    IPC分类号： G03G9/107

    CPC分类号： G03G9/107

    摘要： Disclosed is a carrier for a two-component developer, which comprises specific sintered ferrite particles obtained by modifying ferrite customarily used for a carrier, and which can provide a copied image having a high quality, especially an excellent gradation, while maintaining a high durability of the carrier. This carrier comprises sintered ferrite particles having an internal pore ratio, based on the area, of 3 to 20% in an amount of 50 to 80% by weight based on the entire carrier, and the developing voltage dependency of the electric resistance of the carrier is reduced and controlled to an appropriate level.

    摘要翻译： 公开了一种双组分显影剂的载体，其包含通过改变常规用于载体的铁素体获得的特定的烧结铁氧体颗粒，并且可以提供具有高质量，特别是优异的等级的复印图像，同时保持高的耐久性 承运人 这种载体包括基于整个载体的基于面积的内孔比为3〜20％的烧结铁氧体颗粒，其量为50〜80重量％，载体的电阻的显影电压依赖性 减少并控制到适当的水平。

    Toner for electrophotography and process for preparation thereof
    4.
    发明公开
    Toner for electrophotography and process for preparation thereof 失效
    EntwicklerfürElektrophotographie und Verfahren zu dessen Herstellung。

    公开(公告)号：EP0376717A2

    公开(公告)日：1990-07-04

    申请号：EP89313641.6

    申请日：1989-12-28

    申请人： MITA INDUSTRIAL CO., LTD.

    发明人： Ogami, Shunsuke ,  Yamaguchi, Atsushi ,  Asada, Hidenori ,  Fujii, Masanori ,  Komata, Hiroshi ,  Umeda, Kiminori ,  Kimura, Takahiko

    IPC分类号： G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/097 ,  G03G9/08728 ,  G03G9/091 ,  G03G9/09783

    摘要： Disclosed is a toner for the electrophotography, which comprises as a main component a styrene/acrylic copolymer having at least two molecular weight distribution peaks, the molecular weight (Mw) of the peak on the lowest molecular weight side being lower than 13000, wherein the toner contains a charge controlling agent dispersed therein at a concentration of at least 0.3% by weight and the charge controlling agent has such a particle size distribution that the area ratio of particles having a particle size larger than 2.5 µm is at least 80% based on the section of the toner.
    If this toner is used, the fixing-possible temperature can be broadened while increasing the fixing ratio without reduction of the performances of the toner.

    摘要翻译： 公开了用于电子照相的调色剂，其包含具有至少两个分子量分布峰的苯乙烯/丙烯酸共聚物作为主要成分，最低分子量侧的峰的分子量（Mw）低于13000，其中 调色剂含有浓度为至少0.3重量％的电荷控制剂，并且电荷控制剂具有这样的粒度分布，使得粒径大于2.5μm的颗粒的面积比基于至少80％ 在墨粉部分。 如果使用这种调色剂，则可以在不降低调色剂性能的同时提高定影率的同时，扩大定影可能的温度。

    Electrophotographic toner
    6.
    发明公开
    Electrophotographic toner 失效
    电子照相机墨粉。

    公开(公告)号：EP0468494A1

    公开(公告)日：1992-01-29

    申请号：EP91112499.8

    申请日：1991-07-24

    申请人： MITA INDUSTRIAL CO. LTD.

    发明人： Asada, Hidenori ,  Yamada, Shigeki ,  Arakawa, Takeshi ,  Komata, Hiroshi ,  Tuji, Nobuyuki

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08711 ,  Y10S430/105

    摘要： 57 The present invention provides an electrophotographic toner containing, as a fixing resin, a styrene-acrylic copolymer in which styrene content and molecular-weight distribution are specified, and which contains a specific high-molecular-weight component.
    The electrophotographic toner of the present invention is improved in bending resistance while assuring excellent low-temperature fixing properties, resistance to off-set and heat resistance.

    摘要翻译： 本发明提供一种含有苯乙烯含量和分子量分布的苯乙烯 - 丙烯酸共聚物作为固定树脂的电子照相调色剂，其含有特定的高分子量组分。 本发明的电子照相调色剂的耐弯曲性得到改善，同时确保了优异的低温定影性，耐脱离性和耐热性。

    Two-component developer for developing electrostatic images
    7.
    发明公开
    Two-component developer for developing electrostatic images 失效
    2-Komponenten-Entwickler zur Entwicklung elektrostatischer Abbildungen。

    公开(公告)号：EP0449541A1

    公开(公告)日：1991-10-02

    申请号：EP91302558.1

    申请日：1991-03-25

    申请人： MITA INDUSTRIAL CO., LTD.

    发明人： Komata, Hiroshi ,  Tsuji, Nobuyuki ,  Kimura, Takahiko ,  Asada, Hidenori ,  Yamada, Shigeki

    IPC分类号： G03G9/107

    CPC分类号： G03G9/107

    摘要： Disclosed is a two-component developer, which comprises, as the carrier, specific sintered ferrite particles obtained by modifying ferrite particles obtained by modifying ferrite customarily used for a carrier, and which can provide a copies image having a high quality, while improving the stirring property and flowability of the carrier. This carrier comprises sintered ferrite particles having an internal pore ratio, based on the area, of 20 to 30% in an amount of 50 to 80% by weight based on the entire carrier, and the developing voltage dependency of the electric resistance of the carrier is reduced and controlled to an appropriate level.

    摘要翻译： 公开了一种双组分显影剂，其包含作为载体的通过改性铁氧体颗粒获得的特定烧结铁氧体颗粒，所述铁氧体颗粒通过改性常规用于载体的铁素体，并且可以提供具有高质量的复印图像，同时改善搅拌 性能和流动性。 该载体包括基于整个载体的基于面积的内孔比为20〜30％的烧结铁氧体颗粒，其量为50〜80重量％，载体的电阻的显影电压依赖性 减少并控制到适当的水平。