Patent ID: 9684253
Date: 2017-06-20
CPC Classifications: C07C,G03G

Claim:
1. An electrophotographic photosensitive member comprising a photosensitive layer containing a charge generating material, a hole transport material, and a binder resin, wherein the photosensitive layer is either a multi-layer type photosensitive layer or a single-layer type photosensitive layer, the multi-layer type photosensitive layer includes a charge generating layer that contains the charge generating material and a charge transport layer that contains the hole transport material and the binder resin, and that is located on the charge generating layer, the single-layer type photosensitive layer contains the charge generating material, the hole transport material, and the binder resin, and the hole transport material is a triphenylamine derivative represented by chemical formula (HT-2), (HT-3), (HT-4), (HT-5), (HT-6), (HT-7) or (HT-8)