Patent ID: 8709697
Filing Date: 2014-04-29
Classification: G03G

Abstract:
1. A method of manufacturing a toner comprising: supplying a fluid comprising a resin and a coloring agent to a retaining member comprising a film having multiple discharge orifices therein; discharging droplets of the fluid from the multiple discharge orifices at a speed of from 2 to 4 m/sec by applying a pulse voltage having a trapezoid waveform to a piezoelectric body having a surface portion provided substantially parallel to the film to move the surface in a direction away from the film relative to an at-rest reference position of the surface, holding the surface thereat for a predetermined time, and bringing the surface back to the reference position; wherein the pulse voltage having a trapezoid waveform has a frequency smaller than a resonance frequency of the film; and solidifying droplets of the fluid discharged from the multiple discharge orifices to form mother particles; wherein the piezoelectric body has a primary resonance frequency f, which satisfies the following relationship: N−0.1<4fT wherein N represents an integer, and T