Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor

An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon, comprising as an effective component an aromatic polycarbonate resin which comprises a repeat unit of formula (3):

• wherein a, b, c and d are each independently an integer of 0 to 4;
• n is an integer of 0 or 1;
• R1, R2, R3 and R4 are each independently a halogen atom, an alkyl group having 1 to 6 carbon atoms, which may have a substituent, an alkoxyl group having 1 to 6 carbon atoms, which may have a substituent, or an aryl group which may have a substituent, and R1, R2, R3 and R4 may each be the same or different when a, b, c and d are each an integer of 2, 3 or 4;
• R5 is a hydrogen atom, an alkyl group which may have a substituent, or an aryl group which may have a substituent;
• Ar1 is an aryl group which may have a substituent;
• Ar2 and Ar3 are each an arylene group which may have a substituent;
• and m is an integer of 2 to 5000, which represents a degree of polymerization.

An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon, comprising as an effective component an aromatic polycarbonate resin which comprises a repeat unit of formula (5):

• wherein a, b, c and d are each independently an integer of 0 to 4;
• n is an integer of 0 or 1;
• R1, R2, R3 and R4 are each independently a halogen atom, an alkyl group having 1 to 6 carbon atoms, which may have a substituent, an alkoxyl group having 1 to 6 carbon atoms, which may have a substituent, or an aryl group which may have a substituent, and R1, R2, R3 and R4 may each be the same or different when a, b, c and d are each an integer of 2, 3 or 4;
• Ar2, Ar3 and Ar4 are each an arylene group which may have a substituent;
• R6 and R7 which may be the same or different are each an acyl group, an alkyl group which may have a substituent, or an aryl group which may have a substituent;
• and m is an integer of 2 to 5000, which represents a degree of polymerization.