Light-transmitting recording material for electrophotography, and heat fixing method

A heat fixing method comprising:

• forming a toner image from a toner on a light-transmitting recording material;
• and
• heat fixing the toner image of the light-transmitting recording material by a heat fixing means;
• wherein
• said light-transmitting recording material comprises a base material, a conductive undercoat layer formed on said base material, and a toner acceptable layer formed on said conductive undercoat layer;
• surface resistivity of said conductive undercoat layer ranges from 1.times.10.sup.7 .OMEGA. to 1.times.10.sup.10 .OMEGA. at 20.degree. C. and 60% relative humidity, said conductive undercoat layer contains a metallic conductive or semiconductive material;
• said toner acceptable layer comprises a wax as a releasing agent and a thermoplastic resin;
• said toner acceptable layer has a thickness of 2 to 15 .mu.m;
• and
• said light-transmitting recording material has a surface resistivity of 1.times.10.sup.8 .OMEGA. to 1.times.10.sup.13 .OMEGA. at 20.degree. C. and 60% relative humidity and a total light ray transmittance of 80% or more and a haze value of 10 or less.