| abstract |
An electrophotographic photosensitive membernis formed of a support, and a photosensitive layerndisposed on the support. The photosensitive layer isncharacterized by containing an azo pigment having annorganic group represented by formula (1) below:n nwherein A denotes a residue group of formula (1A) below:n nand k 1 , k 2 , Z 1 , Z 2 , D; R 1 and R 2 are defined in thentext. The group of the formula (1) may provide atnleast one of up to 4 azo-substituents of the azonpigment having an entire structure represented byn Ar(N=N-Cp) 1-4 , nwherein Ar denotes an aromatic or heterocyclic corenunit, Cp denotes a coupler residue group, andn-(N=N-Cp) denotes such an azo-substituent. Thenphotosensitive member can exhibit good electrophotographicnperformances including high and stablensensitivity on repetitive use. |