Electrophotographic photoconductor, method of manufacturing the same, and electrophotographic equipment

A positively-charged photoconductor for electrophotography, comprising:

• a conductive substrate;
• and
• a photosensitive layer formed on the conductive substrate,
• wherein the photosensitive layer contains electron transport materials, and
• wherein at least one of the electron transport materials contains an azoquinone derivative having a structure represented by the following general formula (ET1):
• wherein,
• R1 and R2 are the same or different and each represent a hydrogen atom, a C1-12 alkyl group, a C1-12 alkoxy group, an optionally substituted aryl group, a cycloalkyl group, an optionally substituted aralkyl group, or a halogenated alkyl group,
• R3 represents a hydrogen atom, a C1-6 alkyl group, a C1-6 alkoxy group, an optionally substituted aryl group, a cycloalkyl group, an optionally substituted aralkyl group, or a halogenated alkyl group,
• at least two of R4 to R8 represent chlorine atoms;
• and the remaining R4 to R8 other than those representing chlorine atoms are the same or different, and each represent a hydrogen atom, a halogen atom other than chlorine atom, a C1-12 alkyl group, a C1-12 alkoxy group, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted phenoxy group, a halogenated alkyl group, a cyano group, or a nitro group, and
• the substituent represents a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group, a hydroxy group, a cyano group, an amino group, a nitro group, or a halogenated alkyl group.