Patent ID: 6797446
Filing Date: 2004-09-28
Classification: C09B,G03G

Abstract:
An electrophotographic photoreceptor containing a charge generation material composition comprising a sandwich-type metal bisphthalocyanine compound represented by the general formula (I), having a primary particle diameter of 1 micron or less, and a phthalocyanine-based charge generation material represented by the general formula (II):Pc&boxH;M1&boxH;Pcâ€ƒâ€ƒ(I) M2&boxH;Pcâ€ƒâ€ƒ(II) wherein Pc is a phthalocyanine residue of the general formula (III);R1 to R16 are each a hydrogen atom, a halogen atom, a nitro group, an alkyl group or an alkoxy group; and M1 and M2 each represent hydrogen or metal atom bonded to the center of a phthalocyanine residue, M1 being an atom selected from the group consisting of Ti, Zr, Sn, and Ge, and M2 being an atom selected from the group consisting of hydrogen (H2), Cu and Al, or M2 being an atom selected from the group consisting of Ti, V, Zr, Ge, Ga, and In to which oxygen, halogen or hydroxyl is bonded.