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    Method for preparing developer for use in electrophotographic printing
    1.
    发明授权
    Method for preparing developer for use in electrophotographic printing 失效
    制备用于电子照相印刷的显影剂的方法

    公开(公告)号：US5759735A

    公开(公告)日：1998-06-02

    申请号：US790385

    申请日：1997-01-29

    申请人： Tadashi Nakamura ,  Kanshiro Okamoto ,  Hirofumi Sakita ,  Toshihiko Murakami ,  Yoshiaki Akazawa

    发明人： Tadashi Nakamura ,  Kanshiro Okamoto ,  Hirofumi Sakita ,  Toshihiko Murakami ,  Yoshiaki Akazawa

    IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/09

    CPC分类号： G03G9/0804 ,  G03G9/081 ,  G03G9/0812 ,  G03G9/0904

    摘要： A method for preparing an electrophotographic printing-use developer by mixing components of toner material, fusing and kneading the toner material, and then crushing and classifying the toner material, includes the step of arranging carbon black which is one of the components of the toner material to contain water before the mixing step. This arrangement permits even dispersion of water in the mixture of the components, prevents the flowability of the mixture from being lowered, and achieves stable kneading. Therefore, improved dispersion of the components is achieved. Since water adsorption is stable, water-treated carbon showing reduced water segregation is obtained. Consequently, high quality less foggy images with high resolution are obtained.

    摘要翻译： 通过混合调色剂材料的组分，调色剂材料的熔合和捏合，然后对调色剂材料进行粉碎和分级来制备电子照相印刷用显影剂的方法包括配置作为调色剂材料的组分之一的炭黑的步骤 在混合步骤之前含水。 这种布置允许水分散在组分的混合物中，防止混合物的流动性降低，并且实现稳定的捏合。 因此，实现了组分的改进的分散。 由于水的吸附是稳定的，因此获得了表现出减少的水分离的水处理碳。 因此，获得高分辨率的高质量较少的有雾图像。

    Image forming apparatus having a toner concentration controlling mechanism based on a clocked time period for the recovery
    2.
    发明授权
    Image forming apparatus having a toner concentration controlling mechanism based on a clocked time period for the recovery 失效
    图像形成装置具有基于用于恢复的时钟周期的调色剂浓度控制机构

    公开(公告)号：US5974280A

    公开(公告)日：1999-10-26

    申请号：US97232

    申请日：1998-06-12

    申请人： Yuichiro Takesue ,  Yoshiaki Akazawa ,  Tadashi Nakamura ,  Toshihiko Murakami ,  Junichi Saito ,  Tadayuki Sawai

    发明人： Yuichiro Takesue ,  Yoshiaki Akazawa ,  Tadashi Nakamura ,  Toshihiko Murakami ,  Junichi Saito ,  Tadayuki Sawai

    IPC分类号： G03G15/00 ,  G03G15/043 ,  G03G15/08 ,  G03G21/14

    CPC分类号： G03G15/0822 ,  G03G15/043 ,  G03G15/0849 ,  G03G15/0853

    摘要： An image forming device includes an optical system for forming an electrostatic latent image on a photosensitive body by exposure of an original in light, a development system for developing the electrostatic latent image, and a control system for controlling the optical system and the development system. The control system detects the concentration of a toner in a developing agent tank, calculating a difference between the detected toner concentration and a predetermined toner concentration, replenishing the toner to the developing agent tank until the detected toner concentration makes a recovery to the predetermined toner concentration, clocking a time period for the recovery and controlling at least one of the amount of the exposure light and the amount of the toner adhering to a photosensitive body based on the clocked time period for the recovery.

    摘要翻译： 图像形成装置包括：用于通过曝光原稿在光敏体上形成静电潜像的光学系统，用于显影静电潜像的显影系统，以及用于控制光学系统和显影系统的控制系统。 控制系统检测显影剂罐中的调色剂的浓度，计算检测到的调色剂浓度与预定调色剂浓度之间的差异，将调色剂补充到显影剂槽直到检测到的调色剂浓度恢复到预定调色剂浓度 计时用于恢复的时间段，并且基于用于恢复的时钟周期来控制曝光光的量和粘附到感光体的调色剂的量中的至少一个。

    Toner producing method using recycled extra-fine toner particles
    3.
    发明授权
    Toner producing method using recycled extra-fine toner particles 失效
    使用回收的超细调色剂颗粒的调色剂生产方法

    公开(公告)号：US5846683A

    公开(公告)日：1998-12-08

    申请号：US816391

    申请日：1997-03-13

    申请人： Toshihiko Murakami ,  Tadashi Nakamura ,  Junichi Saito ,  Yasuharu Morinishi ,  Takeaki Ouchi ,  Satoshi Ogawa ,  Yoshiaki Akazawa

    发明人： Toshihiko Murakami ,  Tadashi Nakamura ,  Junichi Saito ,  Yasuharu Morinishi ,  Takeaki Ouchi ,  Satoshi Ogawa ,  Yoshiaki Akazawa

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/08797 ,  G03G9/081 ,  G03G9/08711

    摘要： The extra-fine toner arising in the toner producing process, is returned to the mixing step where it is mixed again with the binder resin and the coloring agent, and the compound is sent out to the kneading step. In this procedure, the particle size of the binder resin is set in accordance with the particle size and blending amount of the extra-fine toner, the kind of the binder resin, etc. By using the binder resin having the thus determined particle size, the amount of the binder to be fed into the mixer or the amount of the compound ejected from the mixer are maintained uniform. Further, when the extra-fine toner is mixed with the starting materials, the blending ratio of the extra-fine toner to the starting material is set between 5 wt. % and 10 wt. %, and the blending ratios of the charge control agent and the coloring agent are set equal to those of the normal process where no recycled toner is added.

    摘要翻译： 在调色剂生产过程中产生的超细调色剂返回到混合步骤中，再次与粘合剂树脂和着色剂混合，并将化合物送出到捏合步骤。 在该方法中，粘合剂树脂的粒径根据超细调色剂的粒度和配合量，粘合剂树脂的种类等进行设定。通过使用具有如此确定的粒径的粘合剂树脂， 进料到混合器中的粘合剂的量或从混合器喷出的化合物的量保持均匀。 此外，当超细调色剂与原料混合时，超细调色剂与起始原料的混合比设定在5重量％ ％和10wt。 ％，并且电荷控制剂和着色剂的混合比设定为不加入再循环调色剂的常规方法的混合比。

    Electrophotographic toner and method of manufacturing same
    4.
    发明授权
    Electrophotographic toner and method of manufacturing same 失效
    电子照相墨粉及其制造方法

    公开(公告)号：US5981129A

    公开(公告)日：1999-11-09

    申请号：US25113

    申请日：1998-02-17

    申请人： Yoshiaki Akazawa ,  Toshihiko Murakami ,  Tatuo Imafuku ,  Takeaki Ohuchi ,  Yasuharu Morinishi ,  Satoshi Ogawa ,  Tadashi Nakamura ,  Hitoshi Nagahama ,  Toshihisa Ishida

    发明人： Yoshiaki Akazawa ,  Toshihiko Murakami ,  Tatuo Imafuku ,  Takeaki Ohuchi ,  Yasuharu Morinishi ,  Satoshi Ogawa ,  Tadashi Nakamura ,  Hitoshi Nagahama ,  Toshihisa Ishida

    IPC分类号： G03G9/08 ,  G03G9/093

    CPC分类号： G03G9/081 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/093 ,  G03G9/09307 ,  G03G9/09321 ,  G03G9/0935 ,  G03G9/09364 ,  G03G9/09392

    摘要： An electrophotographic toner is made up of toner particles composed of irregularly-shaped core particles made chiefly of binder resin, and surface-modifying fine particles which are first dispersed over and attached to the surface of the core particles, and then affixed or formed into a film thereon. The BET specific surface area, based on N.sub.2 adsorption, of the toner particles is less than 0.64 times the BET specific surface area of the core particles and surface-modifying fine particles combined together. Further, this value is 1.07 times the BET specific surface area of hypothetical toner particles which are perfect spheres. Consequently, the toner is not prone to problems such as filming, toner scattering, and fogging which are caused by peeling, separation, etc. of the surface-modifying fine particles, nor to poor cleaning due to spherical toner particles. Further, since the toner is manufactured with a quantitative grasp of the state of modification of the surface of the core particles by the surface-modifying fine particles, it is a toner in a stable state.

    摘要翻译： 电子照相调色剂由主要由粘合剂树脂制成的不规则形状的核心颗粒和首先分散在核颗粒表面上并附着在核颗粒表面上的表面改性微粒组成的调色剂颗粒组成，然后固定或形成为 膜上。 调色剂颗粒的基于N2吸附的BET比表面积小于核心颗粒的BET比表面积和结合在一起的表面改性微粒的0.64倍。 此外，该值是完美球体的假想调色剂颗粒的BET比表面积的1.07倍。 因此，调色剂不容易出现由表面改性微粒的剥离，分离等引起的成膜，调色剂飞散和起雾等问题，也不会由于球形调色剂颗粒而导致不良清洁。 此外，由于调色剂通过表面改性细颗粒对芯颗粒的表面的修饰状态的定量掌握来制造，所以它是调色剂处于稳定状态。

    Method and system of producing toner
    7.
    发明授权
    Method and system of producing toner 失效
    生产调色剂的方法和系统

    公开(公告)号：US5799881A

    公开(公告)日：1998-09-01

    申请号：US792452

    申请日：1997-01-31

    申请人： Yoshinori Urata ,  Takao Yoneda ,  Yoshiaki Akazawa ,  Yasuharu Morinishi ,  Nobuhiko Nakano ,  Tadashi Nakamura ,  Takeaki Ouchi ,  Satoshi Ogawa

    发明人： Yoshinori Urata ,  Takao Yoneda ,  Yoshiaki Akazawa ,  Yasuharu Morinishi ,  Nobuhiko Nakano ,  Tadashi Nakamura ,  Takeaki Ouchi ,  Satoshi Ogawa

    IPC分类号： G03G9/08 ,  B02C19/06 ,  B29B13/10 ,  G03G9/087

    CPC分类号： B02C19/066

    摘要： A toner producing system which can efficiently produce toner having a sharp particle size distribution by suppressing the occurrence of microscopic powders and improve energy efficiency in pulverization. The system is furnished with a second pulverizing apparatus having a second colliding plate inclined at an angle in a range between 45.degree. and 90.degree. inclusive with respect to a direction in which a raw material subject to pulverization is introduced into a second pulverizing chamber through a second nozzle, and a third pulverizing apparatus having a third colliding plate with a conical member being placed thereon, so that the raw material introduced into a third pulverizing chamber through a third nozzle collides with an inner surface thereof following the collision with the third colliding plate.

    摘要翻译： 一种调色剂生产系统，其可以通过抑制微粉末的发生和提高粉碎的能量效率来有效地生产具有尖锐的粒度分布的调色剂。 该系统具有第二粉碎装置，该第二粉碎装置具有相对于经受粉碎的原料被引入第二粉碎室中的方向倾斜45度至90度之间的角度的第二碰撞板， 第二喷嘴和具有第三碰撞板的第三粉碎装置，其具有圆锥形构件，使得通过第三喷嘴引入第三粉碎室的原料在与第三碰撞板碰撞之后与其内表面碰撞 。