公开(公告)号：US08507169B2

公开(公告)日：2013-08-13

申请号：US13406987

申请日：2012-02-28

申请人： Tomoko Mine ,  Mikihiko Sukeno ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Hiroyuki Kozuru ,  Saburou Hiraoka ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Hitomi Motani ,  Takanari Kayamori

发明人： Tomoko Mine ,  Mikihiko Sukeno ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Hiroyuki Kozuru ,  Saburou Hiraoka ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Hitomi Motani ,  Takanari Kayamori

IPC分类号： G03G9/08

CPC分类号： G03G9/1133 ,  G03G9/1138 ,  G03G9/1139

摘要： A two-component developer is disclosed, composing a toner comprising parent toner particles with an attached external additive and a carrier provided with a resin covering layer on a surface of a core particle, wherein the resin covering layer comprises a binder resin comprising an acrylic resin and when the resin covering layer is divided in half to a core particle side and a surface side, a nitrogen element content of the core particle side is larger than a nitrogen element content of the surface side.

摘要翻译： 公开了一种双组分显影剂，其包括具有附着的外部添加剂的母体调色剂颗粒和在芯颗粒的表面上设置有树脂覆盖层的载体的调色剂，其中所述树脂覆盖层包含粘合剂树脂，其包含丙烯酸树脂 并且当树脂被覆层被分成一半到芯粒子侧和表面侧时，核心粒子侧的氮元素含量​​大于表面侧的氮元素含量​​。

公开(公告)号：US08435715B2

公开(公告)日：2013-05-07

申请号：US13185123

申请日：2011-07-18

申请人： Kosuke Nakamura ,  Hiroyuki Kozuru ,  Yoshiyasu Matsumoto ,  Takanari Kayamori ,  Junya Ueda

发明人： Kosuke Nakamura ,  Hiroyuki Kozuru ,  Yoshiyasu Matsumoto ,  Takanari Kayamori ,  Junya Ueda

IPC分类号： G03G5/00

CPC分类号： G03G9/107 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133

摘要： Disclosed is a production method of a two-component developer for developing an electrostatic image comprising a toner and a resin coated carrier having a porous magnetic core particle and a resin coated layer, wherein the porous magnetic core particle are composed of a porous ferrite material and have pore apertures on a surface of the particle, and the method comprises steps of blocking the pore apertures of the porous magnetic core particle with rubber particles by dry mixing of the porous magnetic core particle and the rubber particles, forming the resin coated carrier by forming a resin layer on the porous magnetic core particle whose pore apertures have been blocked, and mixing the resin coated carrier and the toner.

摘要翻译： 公开了一种用于显影静电图像的双组分显影剂的制备方法，所述双组分显影剂包括调色剂和具有多孔磁心颗粒和树脂涂层的树脂涂布载体，其中所述多孔磁性核颗粒由多孔铁氧体材料和 在颗粒表面上具有孔隙孔，该方法包括以下步骤：通过干燥多孔磁性核心颗粒和橡胶颗粒的混合，用橡胶颗粒阻挡多孔磁性核颗粒的孔隙，通过形成树脂涂覆载体 在多孔磁性核颗粒上的孔隙已经被阻挡的树脂层，并将树脂涂覆的载体和调色剂混合。

公开(公告)号：US08080354B2

公开(公告)日：2011-12-20

申请号：US12631965

申请日：2009-12-07

申请人： Hiroyuki Kozuru ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Futoshi Kadonome ,  Takanari Kayamori

发明人： Hiroyuki Kozuru ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Futoshi Kadonome ,  Takanari Kayamori

IPC分类号： G03G9/00

CPC分类号： G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

摘要： Disclosed is toner in which is used in an image formation process comprising the steps of transferring an image of toner formed on a photoreceptor onto a recording sheet, and removing any residual toner remaining on any of the photoreceptor, an intermediate transfer member and a secondary transfer member with a cleaning blade, the toner containing at least toner particles (A) and small particles (B), wherein the toner particles (A) have an average circularity of from 0.93 to 0.99 and a number-based median diameter (D50) of from 3.0 to 8.0 μm, the small particles (B) have an average circularity of from 0.70 to 0.92 and a number-based median diameter (D50) of from 0.15 to 0.60 times that of the toner particles (A), and the surface energy of the toner particles (A) is different from that of the small particles (B).

摘要翻译： 公开了一种图像形成方法中使用的调色剂，其包括以下步骤：将形成在感光体上的调色剂的图像转印到记录片材上，并除去任何感光体上残留的残留调色剂，中间转印部件和二次转印 所述调色剂至少包含调色剂颗粒（A）和小颗粒（B），其中所述调色剂颗粒（A）的平均圆形度为0.93至0.99，并且基于数量的中值粒径（D50）为 3.0〜8.0μm的小粒子（B）的平均圆形度为0.70〜0.92，数均中值粒径（D50）为调色剂颗粒（A）的中值粒径的0.15〜0.60倍，表面能 的调色剂颗粒（A）与小颗粒（B）的不同。