Bisazo photoconductor for electrophotography

A photoconductor for electrophotography, comprising:

• an electroconductive substrate;
• and
• a photosensitive layer formed on said electroconductive substrate and including a charge transporting substance and a charge generating substance which is at least one disazo compound represented by general formula (II):
• ##STR409## wherein A.sub.1 is a coupler residual group represented by one of general formulae (IX) to (XIV):
• ##STR410## wherein Z is a residual group which condenses with a benzene ring to form an aromatic polycycle or heterocycle, X.sub.1 is one of OR.sub.1 and NR.sub.2 R.sub.3, each of R.sub.1, R.sub.2 and R.sub.3 is selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group and a heterocycle group, which groups may be substituted, each of X.sub.2 and X.sub.5 is selected from the group consisting of an alkyl group, an aryl group and a heterocyclic group, which groups may be substituted, each of X.sub.3 and X.sub.6 is selected from the group consisting of a hydrogen atom, a cyano group, a carbamoyl group, a carboxyl group, an ester group and an acyl group, each of X.sub.4 and X.sub.11 is selected form the group consisting of a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group and a heterocyclic group, each of X.sub.7 and X.sub.8 is selected from the group consisting of a hydrogen atom, a halogen atom, a nitro group, an alkyl group and an alkoxy group, the alkyl group and the alkoxy group of which may be substituted, X.sub.9 is selected from the group consisting of an alkyl group, an aryl group, a carboxyl group and an ester group, X.sub.10 is one of an aryl group and a heterocyclic group, which groups may be substituted, and Y is a residual group which forms an aromatic ring or a heterocycle.