Patent ID: 8380109

Claim:
An image forming apparatus comprising: an image bearing member comprising a substrate having a photosensitive layer thereon, the image bearing member configured to bear a latent electrostatic image on a surface thereof; a charging device configured to charge the surface of the image bearing member; an irradiation device configured to irradiate the surface of the image bearing member with light to form a latent electrostatic image thereon; a development device configured to develop the latent electrostatic image with toner to obtain a developed image; a transfer device configured to transfer the developed image to a recording medium; and a cleaning device configured to clean the surface of the image bearing member, wherein the photosensitive layer comprises naphthalene tetracarbonic acid diimide derivative as a charge transport material represented by a following Chemical Structure (1): where Z represents a group represented by a following Chemical Formula (2): —R 9 Chemical Formula (2) where R 1 , R 2 , and R 9 each, independently, represent a substituted or non-substituted alkyl group or a substituted or non-substituted aromatic hydrocarbon group, and R 5 , R 6 , R 7 and R 8 each, independently, represent a hydrogen atom, a substituted or non-substituted alkyl group, or a substituted or non-substituted aromatic hydrocarbon group.