An electrophotographic photoreceptor, comprising: a conductive substrate; and a photosensitive layer located overlying the conductive substrate, comprising: a charge generation material; an electron transport material having the following formula: wherein each of R1 and R2 independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aralkyl group; each of R3 to R14 independently represents a hydrogen atom, a halogen atom, a cyano group, an amino group, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aralkyl group; and n represents an integer of from 0 to 100; and a hole transport material having the following formula: selected from the group consisting of a) a hole transport material wherein R15 and R16 each represent H; R17 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, b) a hole transport material wherein R15 and R16 each represent H; R17 represents 4-OCH 3; R18 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, and c) a hole transport material wherein R15, R16, R19, and R21 each represent H; R17 represents 4-OCH 3; R18 and R20 each represent 4-CH 3; and p1 and p2 each represent 1. a conductive substrate; and a photosensitive layer located overlying the conductive substrate, comprising: a charge generation material; an electron transport material having the following formula: wherein each of R1 and R2 independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aralkyl group; each of R3 to R14 independently represents a hydrogen atom, a halogen atom, a cyano group, an amino group, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aralkyl group; and n represents an integer of from 0 to 100; and a hole transport material having the following formula: selected from the group consisting of a) a hole transport material wherein R15 and R16 each represent H; R17 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, b) a hole transport material wherein R15 and R16 each represent H; R17 represents 4-OCH 3; R18 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, and c) a hole transport material wherein R15, R16, R19, and R21 each represent H; R17 represents 4-OCH 3; R18 and R20 each represent 4-CH 3; and p1 and p2 each represent 1. a charge generation material; an electron transport material having the following formula: wherein each of R1 and R2 independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aralkyl group; each of R3 to R14 independently represents a hydrogen atom, a halogen atom, a cyano group, an amino group, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aralkyl group; and n represents an integer of from 0 to 100; and a hole transport material having the following formula: selected from the group consisting of a) a hole transport material wherein R15 and R16 each represent H; R17 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, b) a hole transport material wherein R15 and R16 each represent H; R17 represents 4-OCH 3; R18 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, and c) a hole transport material wherein R15, R16, R19, and R21 each represent H; R17 represents 4-OCH 3; R18 and R20 each represent 4-CH 3; and p1 and p2 each represent 1. a) a hole transport material wherein R15 and R16 each represent H; R17 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, b) a hole transport material wherein R15 and R16 each represent H; R17 represents 4-OCH 3; R18 to R21 each represent 4-CH 3; and p1 and p2 each represent 0, and c) a hole transport material wherein R15, R16, R19, and R21 each represent H; R17 represents 4-OCH 3; R18 and R20 each represent 4-CH 3; and p1 and p2 each represent 1.