An electrophotographic photoconductor has an electroconductive support and a photoconductive layer which is formed thereon and contains at least one resin of a polyurethane resin, a polyester resin, or a polycarbonate resin, each resin having at least a structural unit of formula :wherein R1, R2, R3, a, b, and n are the same as those specified in the specification. A self powered transponder is encased in a plastic housing, and the housing is affixed to a one piece metal ear clip. The substrate is exposed at the gap region.