Electrophotographic photoconductor used in electrophotographic printer or copier, has resin vehicle, preferably polycarbonate resin, with specified dispersion or polydispersity

摘要

In an electrophotographic photoconductor, comprising a conductive substrate and a light-sensitive layer containing a charge generating substance, a charge transport substance and a resin vehicle, the resin has a dispersion (d1 = z-median molecular weight Mz/weight average molecular weight Mw) of 1.6 or more with respect to a polystyrene standard. An Independent claim is also included for a similar photoconductor, in which the resin vehicle has a polydispersity (d2 = Mw/number average molecular weight Mn) of 2.0 or over with respect to a polystyrene standard.