Patent ID: 7026086

Claim:
A toner, comprising: at least a binder resin, a colorant, a charge control agent and a wax, wherein (a) the binder resin comprises a hybrid resin component having a polyester unit and a vinyl polymer unit, (b) the toner exhibits a loss tangent (tan δ) of 1.0 at a temperature in a range of 80–160° C., (c) the toner provides a DSC curve showing a heat-absorption peak in a temperature range of 85–130° C. on temperature increase as measured according to differential scanning calorimetry (DSC). (d) the toner exhibits a ratio (Mw/Mn) of 40–100 between a weight-average molecular weight (Mw) and a number-average molecular weight (Mn), and (e) the toner has an acid value of 5–25 mgKOH/g.