| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the electrophotographic toner capable of stable obtaining image density even in the case of use for a long time and being good in initial image reproductivity and transferred image quality and free of partial dropout of images in a specified process. SOLUTION: This positively chargeable toner comprises at least colored particles composed of a binder resin and a colorant and an additive to be added to the surfaces of the colored particles, and the additive is made of at least hydrophobic silica particles and a magnetic material having average particle diameter of <=0.1μm and its surface is treated to make it hydrophobic by a modified silicone oil having positive chargeability.</p> |
