| 摘要 |
Titanium oxide, silica having a BET specific surface area of 10 to 50 m2/g, and metal soap having a volume average grain diameter of 1 to 5 mu m are added to toner particles. With such toner, it becomes possible to stabilize the charge amount and suppress the spent toner, filming and scratches on the photoreceptor, and therefore an image with an excellent reproducibility of half tone, can be obtained at high fineness degree in a later stage in its life.
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