Frishauf, Holtz, Goodman & Woodward
Photoreceptor having a metal-free phthalocyanine charge generating layer
 A photoreceptor including a carrier transporting layer containing a carrier transporting material and a binder material, and a carrier generating layer containing a carrier generating material and a binder material, the layers being placed one over the other in order of mention, characterized in that said carrier generating layer contains a metal-free phthalocyanine having main peaks of Bragg angles 2.theta. at least at 7.5 degrees.+-.0.2 degrees, 9.1 degrees .+-.0.2 degrees, 16.7 degrees.+-.0.2 degrees, 17.3 degrees.+-.0.2 degrees, and 22.3 degrees.+-.0.2 degrees in relation to CuK.alpha. characteristic X rays (wavelength 1.541 .ANG.), and in that said carrier generating layer also contains a carrier transporting material. 
Konica Corporation
G G
G03G G03G
inventional inventional
Akira Yoshihide Yasuo
Hirano Fujimaki Suzuki