Patent ID: 7510814

Claim:
A method of producing a toner useable in an image forming apparatus, comprising the steps of: a. forming an organic phase containing a resin, an organic solvent, a colorant, a charge control agent, and a phase change stabilizer, wherein the phase change stabilizer is in a gelation state or in a form of a microparticle having an average diameter of about 0.1-1 Î¼m; b. forming an aqueous phase containing water, an anticoagulant, an accelerant, and optionally an auxiliary agent; c. mixing the aqueous phase and the organic phase to induce the phase change and to form an indirect emulsified solution having resin colloidal microparticles formed and stably dispersed therein, whereby the resin colloidal microparticles aggregate, coalesce and solidify out into resin particles in the solution, meanwhile the phase change stability and emulsion dispersibilty are improved by controlling the amount of the phase change stabilizer in the organic phase and the viscosity ratio of the organic phase to the aqueous phase; and d. curing the resin particles to obtain toner particles having shapes, diameters, and diameter distribution that are controllable.