| 发明名称 |
Magnetic toner and image forming method |
| 摘要 |
A magnetic toner has magnetic toner particles containing a binder resin and a magnetic material, and an inorganic fine powder treated with an organic compound. The magnetic toner has a volume average particle diameter Dv ( mu m) of 3 mu m</=Dv<6 mu m, a weight average particle diameter D4 ( mu m) of 3.5 mu m</=D4<6.5 mu m, a percentage Mr of particles with particle diameters of 5 mu m or smaller in number particle size distribution of the magnetic toner, of 60% by number<Mr</=90% by number, and the ratio of a percentage Nr of particles with particle diameters of 3.17 mu m or smaller in number particle size distribution of the magnetic toner to a percentage Nv of particles with particle diameters of 3.17 mu m or smaller in volume particle size distribution of the magnetic toner, Nr/Nv, of from 2.0 to 8.0.
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| 申请公布号 |
US5618647(A) |
申请公布日期 |
1997.04.08 |
| 申请号 |
US19950520558 |
申请日期 |
1995.08.28 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KUKIMOTO, TSUTOMU;GOSEKI, YASUHIDE;URAWA, MOTOO;SHIMAMURA, MASAYOSHI;OKANO, KEIJI;NOZAWA, KEITA;YOSHIDA, SATOSHI;OJIMA, MASAKI |
| 分类号 |
G03G9/08;G03G9/097;(IPC1-7):G03G9/083 |
主分类号 |
G03G9/08 |
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