Patent ID: 6946225

Claim:
A multi-active electrophotographic charge generation element comprising: a conductive support; a charge generation layer (CGL) disposed on said conductive support, said charge generation layer comprising an aggregated or crystalline form of a first dye or pigment, said aggregated or crystalline form comprising a charge-generation material, and a first polymeric binder; and a charge transport layer (CTL) disposed on said charge generation layer, said charge transport layer comprising at least one charge-transport agent, a second dye or pigment having absorption in a selected spectral region that at least partially overlaps the absorption in said selected spectral region of a dissolved non-aggregated or non-crystalline form of said first dye or pigment, and a second polymeric binder; wherein said second dye or pigment in the charge transport layer comprises a dye that has absorption in the range of about 550-580 nm and absorbs visible radiation in said selected spectral region incident on said charge transport layer, thereby shielding the charge generation layer from said radiation and mitigating visible radiation-induced photofatigue, said second dye or pigment in said charge transport layer being selected from the group consisting of and mixtures thereof.