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    • 10. 发明申请
    • TWO-COMPONENT DEVELOPER
    • 两组分开发商
    • US20130244159A1
    • 2013-09-19
    • US13988867
    • 2011-11-24
    • Koh IshigamiNozomu KomatsuKentaro KamaeYoshinobu Baba
    • Koh IshigamiNozomu KomatsuKentaro KamaeYoshinobu Baba
    • G03G9/083
    • G03G9/0832G03G9/0827G03G9/1075G03G9/1131G03G9/1136
    • Provided is a two-component developer having excellent developing performance and little change in image concentration, and achieving long-term suppression of image defects such as transfer failure and fogging.Provided is a two-component developer containing a magnetic carrier and a toner, wherein the magnetic carrier has magnetic carrier particles comprising a silicone resin B coated on the surfaces of filled core particles in which pores of porous magnetic core particles are filled with a silicone resin A, the silicone resin A is a silicone resin cured in the presence of a non-metal catalyst or without a catalyst, while the silicone resin B is a silicone resin cured in the presence of a metal catalyst having titanium or zirconium, and the toner contains a binder resin, a release agent and a colorant, and has an average circularity of 0.940 or more.
    • 提供了具有优异的显影性能和图像浓度变化小的双组分显影剂,并且实现了诸如转印失败和起雾的图像缺陷的长期抑制。 提供了含有磁性载体和调色剂的双组分显影剂,其中磁性载体具有磁性载体颗粒,其包含涂覆在填充芯颗粒表面上的硅树脂B,其中多孔磁性核颗粒的孔填充有硅树脂 A中,有机硅树脂A是在非金属催化剂或不含催化剂存在下固化的有机硅树脂,而有机硅树脂B是在具有钛或锆的金属催化剂存在下固化的有机硅树脂,并且调色剂 含有粘合剂树脂,脱模剂和着色剂,平均圆形度为0.940以上。