Method of manufacturing a toner, apparatus of manufacturing a toner, a toner, an image forming method and an image forming apparatus

摘要

A method of manufacturing a toner comprising:a first dispersion step wherein (i) at least two binder resins having different weight average molecular weight, (ii) a coloring agent and (iii) a releasing agent are dispersed in an organic solvent to obtain an oil phase,a second dispersion step comprising continuously mixing the oil phase with an aqueous medium comprising a solid particulate dispersion agent to form a dispersion emulsion comprising emulsified particles,wherein at least one of the first and second dispersion steps is carried out under at least one condition based on a property of the binder resin which has the lowest weight-average molecular weight,automatically measuring the volume average particle diameter of the dispersion emulsion during the second dispersion step,automatically calculating the difference between the volume average particle diameter of the dispersion emulsion measured during the measuring and a target volume average particle diameter,automatically maintaining an allowable difference between the volume average particle diameter of the dispersion emulsion measured during the measuring and the target volume average particle diameter by changing one of the conditions.