发明名称 Magnetic toner and method of manufacturing magnetic toner
摘要 The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: I) a ratio of an iron element content to a carbon element content present on the toner particle surface is less than 0.0010; II) 50 number % or more of toner particles satisfy a relationship of D/C<=0.02 (C: projected area diameter of toner particles, D: minimum value for a distance between a magnetic iron oxide fine particle and the toner particle surface); and III) 40-95 number % of toner particles satisfy a structure where 70 number % or more of the magnetic iron oxide fine particles in the respective toner particles are present up to a depth of 0.2 time as far as C from the toner particle surface.
申请公布号 US7560212(B2) 申请公布日期 2009.07.14
申请号 US20080050420 申请日期 2008.03.18
申请人 CANON KABUSHIKI KAISHA 发明人 CHIBA TATSUHIKO;MAGOME MICHIHISA;YANASE ERIKO;KABURAGI TAKESHI
分类号 G03G9/08;G03G9/083;G03G9/087 主分类号 G03G9/08
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