Patent ID: 8481240

Claim:
A method of making an electrophotographic imaging member comprising: obtaining a substrate for the electrophotographic imaging member, selecting a phthalocyanine pigment, a binder and a solvent for a charge generating layer, calculating pigment and binder concentrations to be used for the charge generating layer using the following formula: Δ = { [ ( 1 + 1 - x P x P · ρ P ρ B ) · π 3 ⁢ 2 ] 1 3 - 1 } · d wherein Δ is the average pigment particle separation distance and is 28 nm or less, x P is the weight fraction of pigment, ρ P the density of pigment, ρ B the density of binder, and d is the average diameter of the pigment particles, and forming the charge generating layer and a charge transport layer on the substrate.