To evaporate a dye (ink) stably by making a dye reservoir, i.e., a recess, in the surface at the heating part of a dye (ink) evaporation element and forming a plurality of dye columns above the recess.
A heating resistor layer 14 and an overcoat insulation film 20 are provided on the substrate 11 of a dye evaporation element 10 and a dye (ink) reservoir, i.e., a recess 22, is made in the surface at the heating part 15. The dye evaporation element 10 is heated by conducting the heating resistor layer 14 and the ink is evaporated instantaneously to produce vapor thus transferring the ink to a print paper being set on the dye evaporation element 10. When the ink reservoir, i.e., the recess 22, is made in the surface corresponding to the base part of a plurality of ink columns 21, liquid ink can be collected efficiently onto the surface at the heating part 15 through combination the effect of the ink columns 21. Furthermore, heating ink is prevented from running out through evaporation.