Patent ID: 7919220
Filing Date: 2011-04-05
Classification: G03G

Abstract:
1. An electrophotographic photoreceptor comprising: an electroconductive substrate; and a photosensitive layer overlying the electroconductive substrate, wherein the photosensitive layer is a single-layered layer comprising a charge generation material and an electron transport material, wherein the charge generation material is a titanylphthalocyanine having a CuKα 1.542 Å X-ray diffraction spectrum comprising plural diffraction peaks, wherein a maximum diffraction peak is observed at a Bragg (2θ) angle of 27.2°; main peaks are observed at 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; no diffraction peak is observed at an angle greater than 7.3° and less than 9.4°; and no diffraction peak other than 24.0° is observed at an angle greater than 23.0° and less than 25.0°, wherein said angles may vary by ±0.2°, and wherein the electron transport material is: