PURPOSE: To stably form a sharp image capable of controlling electrostatic charge property from the inside of a toner and having excellent offset resistance, a low fixing temperature, excellent blocking resistance, and no photographic fog and to easily clean the untransferred toner on a photosensitive body in the blade cleaning.

CONSTITUTION: In a thermo-pressure fixing capsule toner constituted of a heat- melting core containing at least coloring agent and an outer shell provided to cover the surface of the core, the main constituent of the core is made of the thermoplastic resin obtained by polimerizing 0.05-20 pts.wt. of a α,β-ethylenic copolymerizable monomer (A) containing acid anhydride group and 99.90-80 pts.wt. of another α,β-ethylenic copolymerizable monomer (B), and projections are partially provided on the surface of the toner containing inorganic fine grains in the core.