Patent ID: 8455169

Claim:
A toner comprising: a binder resin; a colorant; and a release agent, wherein the toner satisfies the following relationships (1) and (2): 1.0×10 −9 ( N )≦ Fp ( A )<1.0×10 −6 ( N ) (1) 0( N )< Fp ( B )− Fp ( A )≦1.0×10 −7 ( N ) (2) wherein Fp(A) represents a first inter-particle force of the toner, which is measured under an environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 25° C. under a compression stress of 15 kg/cm 2 , and Fp(B) represents a second inter-particle force of the toner, which is measured under the environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 50° C. under a compression stress of 15 kg/cm 2 .