Patent ID: 7920805

Claim:
A printer cartridge comprising: a photoconductor comprising a support structure, a charge generation layer disposed at least partially over said support structure and a charge transport layer; boron nitride dispersed in said charge transport layer, wherein said boron nitride: (a) has an aspect ratio ranging from 5-30; (b) a D50 mean particle size of less than about 10.0 μm; (c) is present at about 5.0% (wt) or less in said charge transport layer; (d) provides a dark decay (DD BN ) that is equal to about (0.7−1.3)(DD), wherein DD represents the dark decay of said photoconductive element in the absence of boron nitride; and (e) provides a photoinduced decay residual potential at 0.7 uJ/cm 2 that is within about +/−15% of the residual potential of said photoconductor in the absence of boron nitride; and toner particles wherein said toner particles have a size range of about 1-25 μm and an average degree of circularity of about 0.90-1.0.