Electro-sensitive thermal transfer recording medium

An electro-sensitive thermal transfer recording medium which comprises:

• a metal support;
• an electric resistor layer which is formed on one side of said metal support and comprises a resin and a conductive powder, said resistor layer having an absolute value of a linear expansion coefficient of not larger than 2.times.10.sup.-5 /.degree.C. in a temperature range of from 23.degree. C. to 450.degree. C., a tensile elongation of not larger than 5% at 450.degree. C. at a stress of 0.5 Kgf/mm.sup.2, a volume specific resistance of from 10.sup.-1 to 10.sup.3 .OMEGA.cm at 23.degree. C., and a thickness of from 1 to 100 .mu.m
• wherein said resin is selected from the group consisting of aromatic polyimides which are obtained by polycondensation of aromatic tetracarboxylic dianhydride and aromatic diamines and imidization of the resultant polycondensates and wherein said resin is further a polyimide having the recurring units of one of the following formulae ##STR2## a powder ink-retaining layer having a powder ink thereon or an ink layer formed on the other side of said support.