Patent ID: 8501055

Claim:
A toner manufacturing method, comprising: a droplet generating step of controlling a droplet generating unit that includes a thin film, a plurality of nozzles formed in a deformable domain of the thin film, and an annular vibrating unit that is arranged at a liquid discharge side, and at a perimeter of the deformable domain, of the thin film for vibrating the thin film to cause droplets of a toner-containing liquid including at least a resin and a colorant to be breathed out by causing a bending vibration to the deformable domain of the thin film to deform the thin film; and a granulating step of allowing the breathed out droplets to solidify and to form toner particles wherein a ratio of ΔL max/ΔL min is no greater than 2.0, so as to form the toner particles within a determined range of particle sizes distribution, where ΔLmax is a greatest amount of displacement of the thin film in a direction of vibration, and ΔLmin is a smallest amount of displacement of the thin film in the direction of vibration.