Patent ID: 7645550

Claim:
A toner comprising: toner base particles obtained by mixing in an aqueous medium at least a first resin particle dispersion in which first resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed, aggregating the particles to form core particles at least part of which is melted, adding a second resin particle dispersion in which second resin particles are dispersed to a core particle dispersion in which the core particles are dispersed, and fusing the second resin particles with the core particles by heating, wherein a gel permeation chromatography (GPC) measurement of the second resin particles shows that a number-average molecular weight (Mn2) is 9000 to 30000, a weight-average molecular weight (Mw2) is 50000 to 500000, and a ratio (Mw2/Mn2) of the weight-average molecular weight (Mw2) to the number-average molecular weight (Mn2) is 2 to 10, and wherein the wax particles comprise at least a first wax and a second wax, an endothermic peak temperature (melting point Tmw1) of the first wax based on a differential scanning calorimetry (DSC) method is 50° C. to 90° C., and a relationship between an endothermic peak temperature (melting point Tmw2) of the second wax based on the DSC method and Tmw1 is expressed as 5 +Tmw 1 (° C.)≦ Tmw 2 (° C.)≦50 +Tmw 1 (° C.).