| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonmagnetic single component toner having suppressed filming, fog or the like for long-term use and capable of forming an image with stable picture quality. SOLUTION: In the toner prepared by mixing and adding at least two kinds of external additives to toner particles containing at least a polyester resin and a coloring pigment, the external additives are silica fine particles having 5 to 100 nm average particle size and silica melamine composite fine particles having 300 to 1,000 nm average particle size. COPYRIGHT: (C)2005,JPO&NCIPI
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