Patent ID: 6607864
Filing Date: 2003-08-19
Classification: G03G

Abstract:
An image forming method, comprising the step of heating a heating member that is in contact with a toner image to fix the toner image onto a recording medium, wherein a surface of the heating member or vicinity thereof generates a heat, and a toner forming the toner image contains a colorant and a binder resin containing a crystalline polyester resin as the main component, the crystalline polyester resing giving a number average molecular weight of approximately 1500 or more, and ester concentration M, as defined by the following equation (1), of the crystalline polyester resin is approximately 0.01 or more and 0.2 or less:M=K/Aâ€ƒâ€ƒ(1) where M represents the ester concentration, K represents the number of ester groups in the polymer, and A represents the number of atoms that constitute the macromolecular chain of the polymer.