Patent ID: 7927776

Claim:
A toner for electrophotography comprising a binder resin, a colorant, a charge control agent, and a releasing agent, wherein the toner has a complex viscosity (η) of 4.0×10 1 Pa·s to 1.6×10 3 Pa·s within a temperature range of about 40° C. lower than a toner fixing temperature of a toner fixing unit to about 10° C. higher than the toner fixing temperature of the fixing unit and has a specified activation energy of 15 to 85 KJ/mol, wherein the binder resin is a mixture of a first resin and a second resin where the first resin has a weight average molecular weight of about 60,000 to 100,000 and said second resin has a weight average molecular weight of about 3,000 to 7,000.