Bierman, Muserlian and Lucas
Photoreceptor for electrophotography
 An electrophotographic photoreceptor comprising a charge transport material and an anti-oxidant in the charge transport layer is disclosed. The transport material has a carbon atom of which the charge density on aforesaid carbon atom in an aromatic ring is smaller than -0.16 when aforesaid charge transport material is in a positive hole state due to being one electron-oxidation, and the anti-oxidant has oxidation potential (V) satisfying Formula, EQU 0.1(V).ltoreq.E.sub.OX -E.sub.T .ltoreq.1.0(V) wherein E.sub.OX is oxidation potential of the anti-oxidant, and E.sub.T is oxidation potential of the charge transport material. The thickness of the charge transport layer is 25 .mu.m or more. 
Konica Corporation
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Akihiko Masaru Mieko
Itami Sano Toyama