Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge and image forming apparatus

A lamination type electrophotographic photoreceptor comprising:

• a conductive support;
• and
• a charge generation layer and a charge transport layer on the conductive support,
• wherein the charge transport layer contains a compound having a HOMO energy level (E_homo) of −4.550 eV or more based on structure optimization calculation by density functional calculation B3LYP/6-31G (d, p) and fluorine resin particles, and a content of the fluorine resin particles is 4.5% by mass to 12% by mass based on a total mass of the charge transport layer,
• wherein the compound having an E_homo of −4.550 eV or more includes a compound represented by the following Formula (1):
• in the Formula (1), Ar1 to Ar5 each independently represent an aryl group which may have a substituent;
• Ar6 to Ar9 each independently represent a 1,4-phenylene group which may have a substituent;
• and m and n each independently represent an integer of 1 to 3,
• wherein the fluorine resin particle is selected from the group consisting of polytetrafluoroethylene, polychlorotrifluoroethylene, polyhexafluoropropylene, polyvinyl fluoride, polyvinylidene fluoride, polydichlorodifluoroethylene and a copolymer thereof, and
• wherein a ratio of a content (part by mass) of compounds represented by Formula (1) in the charge transport layer to a content (part by mass) of fluorine resin particles in the charge transport layer ranges from 2.6 to 6.0.