| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner which can be cyclically reused, which hardly causes large decrease in the fluidity in a cyclically reusing environment, and which hardly sticks to a carrying part or a developing part, and to provide the producing method of the toner. SOLUTION: This toner for an electrophotographic device contains at least a binder resin, a charge controlling agent and external additives. As for the external additives, two kinds of additives having different BET specific surface areas by 30 to 80 m<2> /g difference from each other are used. In the two kinds of external additives, a first external additive is a hydrophobic silica having 80 to 100 m<2> /g BET specific surface area, and a second additive is at least one of hydrophobic silica, alumina and titanium oxide having 40 to 60 m<2> /g BET specific surface area.</p> |
