Patent ID: 7867680

Claim:
A non-magnetic toner for one-component development, comprising: a binder resin, comprising: a first resin, a second resin, a third resin; a colorant; and a wax, wherein the first resin is a hybrid resin comprising an amorphous unit obtained from condensation polymerization and a unit obtained from radical polymerization in its molecular frame, and the second and third resins are non-hybrid resins comprising units obtained from condensation polymerization, respectively, wherein each of the first, second and third resins has a glass transition temperature (Tg) and a softening point (Tm) satisfying the following relationships: Tg of the first resin<Tg of the second resin<Tg of the third resin, which is from 70 to 80° C., and Tm of the second resin<Tm of the third resin<Tm of the first resin, and wherein the binder resin comprises the first resin in an amount of from 10 to 20% by weight and the third resin of from 25 to 45% by weight.