Patent ID: 8765349

Claim:
A method of manufacturing toner, comprising: dissolving or dispersing toner constituents in an organic solvent to prepare a toner constituents liquid; degassing the toner constituents liquid so that the toner constituents liquid includes dissolved oxygen in an amount of 3 mg/L or less, wherein the degassing is performed by any one of (a) containing the toner constituents liquid in a container and reducing a pressure in the container, (b) passing the toner constituents liquid inside a hollow fiber membrane tube and reducing a pressure outside the hollow fiber membrane tube, and (c) contacting the toner constituents liquid with a gas having a low solubility in the toner constituents liquid; vibrating the toner constituents liquid in a chamber having at least one nozzle to form a liquid column resonance standing wave in the toner constituents liquid; discharging the toner constituents liquid from the nozzle to form the toner constituents liquid into liquid droplets, the nozzle being disposed within an area including an antinode of the liquid column resonance standing wave; and drying the liquid droplets to solidify the liquid droplets into solid particles.