Patent ID: 7939232

Claim:
A toner, comprising: toner base particles that are obtained by adding a second resin particle dispersion in which second resin particles are dispersed to aggregated particles and heating the resultant mixture so that the second resin particles are fused with the aggregated particles, the aggregated particles being obtained by mixing in an aqueous medium at least a resin particle dispersion in which 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 and heating the mixed dispersion so that the particles are aggregated, wherein a gel permeation chromatography (GPC) measurement of the resin particles forming the aggregated particles shows that a weight-average molecular weight (Mw 1 ) is 10000 to 60000, and a ratio (Mw 1 /Mn 1 ) of the weight-average molecular weight (Mw 1 ) to a number-average molecular weight (Mn 1 ) is 1.5 to 6, wherein a gel permeation chromatography (GPC) measurement of the second resin particles shows that a number-average molecular weight (Mn) is 9000 to 30000, a weight-average molecular weight (Mw) is 50000 to 300000, and a ratio (Mw/Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn) is 2 to 10, and wherein the wax particles comprise at least a first wax and a second wax, the first wax has an endothermic peak temperature (melting point Tmw 1 ) of 55° C. to 85° C. based on a differential scanning calorimetry (DSC) method and comprises a wax having an iodine value of not more than 25 and a saponification value of 30 to 300 or an ester wax that includes at least one of higher alcohol having a carbon number of 16 to 24 and higher fatty acid having a carbon number of 16 to 24, a second wax comprises an aliphatic hydrocarbon wax, and a relationship between an endothermic peak temperature (melting point Tmw 2 ) of the second wax based on the DSC method and Tmw 1 is expressed as 5+Tmw1(° C.)≦Tmw2(° C.)≦50+Tmw1(° C.).