| 摘要 |
A toner which comprises toner particles containing a binder resin, a colorant, a polar resin and a release agent, wherein the binder resin is a styrene polymer, a styrene copolymer, or a mixture of these, and has a weight average molecular weight Mw1 of from 10,000 to 1,000,000, the polar resin is a polyester resin containing a tetrahydrofuran-soluble matter of which weight average molecular weight Mw2 is from 7,000 to 50,000 and an ethyl alcohol-soluble matter of which weight average molecular weight Mw3 is from 1,000 to 7,000, where Mw2/Mw3 is from 1.2 to 10.
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