PURPOSE: To obtain a highly thick image, by preparing a recording material provided with a single-layered conductive ink sheet composed mainly of a coloring component, a binder componnent, and an inorganic component.

CONSTITUTION: An ink sheet 1' comprises a conductive or semiconductor support 104 provided with a layer containing a coloring component 101, an inoganic component 102 and a binder component. A film-forming resin 103, 103' is used for said binder component. The coloring component 101 composes a heat transfer ink together with a portion of the binder component 103 being present around said coloring component. The inorganic component 102 is represented by metallic ?oxides, silicon oxides, metal powder, etc. The ink sheet 1 is capable of repeating use since the coloring component 101 and the inorganic component 102 are not completely transferred onto a recorder 2 even when a relatively strong current is supplied.