Patent ID: 8252500
Filing Date: 2012-08-28
Classification: G03G

Abstract:
1. A method for producing a toner, comprising: forming liquid droplets by atomizing a toner composition liquid in a vapor phase, and solidifying the formed liquid droplets, wherein the toner composition is prepared by dissolving or dispersing at least two binder resins and a colorant in an organic solvent, and the at least two binder resins are composed of at least a resin A and a resin B, and wherein a microstructure of resin A and resin B obtained by dissolving or dispersing resin A and resin B in an organic solvent and drying is phase-separated, wherein the toner has an average circularity of 0.93 to 0.98, and wherein in the formation of liquid droplets, the toner composition liquid is periodically discharged from a thin film having a plurality of nozzles provided on a reservoir for reserving the toner composition, by a mechanically vibrating unit so as to form liquid droplets; and the mechanically vibrating unit is any one selected from a vibration generating unit that is formed in a circular ring shape so as to surround the thin film, and that has a vibrating surface formed in parallel with the thin film and vibrating perpendicularly to the thin film.