TONER FOR THERMAL FIXATION

PROBLEM TO BE SOLVED: To provide a toner for thermal fixation which exhibits satisfactory low temperature fixation and offset resistance, even in the long duration, does not cause a deterioration of picture density, a stain of picture such as fogging and the contamination to a photosensitive member and is excellent in a preservation property in a long term, too. SOLUTION: This toner containing binding resin, colorant and wax features that a resin composition of the toner substantially contain no THF insoluble component, in the GPC(gel permeation chromatogram) of THF soluble component of the toner, at least a main peak in the region of molecular weight of 3×103-2×104 is observed, the Mw/Mn of a main part of the main peak is