A member including for example, a substrate, a charge generating layer, a charge
transport layer comprising a synthesized mixture of N,N,N',N'-
Tetra-p-tolyl-
biphenyl-4,4'-
diamine N,N'-Diphenyl-N,N'-di-m-tolyl-
biphenyl-4,4'-
diamine N,N'-Bis-(4-butyl-phenyl)-N,N'-di-p-tolyl-
biphenyl-4,4'-
diamine N,N'-Bis-(4-butyl-phenyl)-N,N'-di-m-tolyl-biphenyl-4,4'diamine N-Phenyl-N-m-tolyl-N',N'-di-p-tolyl-biphenyl-4,4'-diamine N-(4-Butyl-phenyl)-N,N',N'-tri-p-tolyl-biphenyl-4,4'-diamine N-(4-Butyl-phenyl)-N'-phenyl-N'-m-tolyl-N-p-tolyl-biphenyl-4,4'-diamine N-(4-Butyl-phenyl)-N-m-tolyl-N',N'-di-p-tolyl-biphenyl-4,4'-diamine N-(4-Butyl-phenyl)-N'-phenyl-N,N'-di-m-tolyl-biphenyl-4,4'-diamine N,N'-Bis-(4-butyl-phenyl)-N-m-tolyl-N'-p-tolyl-biphenyl-4,4'-diamine, and a film forming binder