| 摘要 |
PURPOSE:To stably form a sharp image capable of being controlled for the electrostatic charge property from the inside of a capsule toner, having excellent offset resistance in the thermo-pressure fixing system of a heat roller, capable of being fixed at a low fixing temperature, and having excellent blocking resistance and no photographic fog many times. CONSTITUTION:In a thermo-pressure fixing capsule toner constituted of a heat- melting core containing at least a coloring agent and an outer shell provided to cover the surface of the core, a copolymer having one or more acid anhydride groups is contained in the core. |
