Electrophotographic photoreceptor and resin composition

An electrophotographic photoreceptor, comprising:

• a polycarbonate resin (A) that has a structural unit represented by the following formula (I);
• and
• at least one selected from a polycarbonate resin (B) synthesized from a source material that comprises a bisphenol represented by the following formula (II) and a polyester resin (B′) synthesized from a source material that comprises a bisphenol represented by the following formula (II),
• in the formulas, each of Ra, Rb, Rc, Rd, Re, and Rf represents, independently from one another, a halogen atom, a substituted or non-substituted alkyl group having 1 to 8 carbon atoms, a substituted or non-substituted cycloalkyl group having 3 to 8 carbon atoms, or a substituted or non-substituted phenyl group;
• each of p, q, r, s, t, and u represents, independently from one another, an integer of 0 to 4;
• Rg represents an alkyl group having 1 to 8 carbon atoms;
• X represents an alkylene group having 1 to 8 carbon atoms, an isopropylidene group, a sec-butylidene group, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, —S—, —SO—, —SO2—, —CO—, or a divalent bonding group that is represented by the following formula (X-1) or the following formula (X-2);
• the benzene rings that compose formula (X-2) may be substituted with an alkyl group having 1 to 8 carbon atoms or a substituted or non-substituted phenyl group;
• Y represents a single bond or —O—;
• and
• each of mA and nA represents a composition ratio (mole ratio) of the structural unit in the round brackets.