Patent ID: 8053156

Claim:
A toner comprising toner particles containing at least a binder resin, a colorant and a wax, wherein; in a chart of molecular weight distribution measured by gel permeation chromatography of tetrahydrofuran-soluble matter of the toner; i) the toner has a main peak in the region of molecular weight of from 16,000 to 60,000; and ii) where the molecular weight at the main peak is represented by M1, and where the height at the molecular weight M1 is represented by H(M1), the height at a molecular weight of 4,000 by H(4000) and the height at a molecular weight of 15,000 by H(15000), the H(4000), the H(15000) and the H(M1) fulfill the following condition: H (4000): H (15000): H ( M 1)=(0.10 to 0.95):(0.20 to 0.90):1.00; the tetrahydrofuran-soluble matter of the toner has a weight-average molecular weight Mw of from 15,000 to 80,000 as measured by gel permeation chromatography; and in an endothermic chart as measured by differential scanning calorimetry; i) the toner has an endothermic main peak in the range of from 40° C. to 130° C.; and ii) the calorimetric integral value represented by the peak area of the endothermic main peak is from 10 to 35 J per 1 g of the toner.