Electrophotographic photoconductor and manufacturing method therefore
View Patent ↗An electrophotographic photoconductor includes a photosensitive layer on a conductive substrate. The photosensitive layer contains a pigment that consists of crystallites composed of molecules having a titanylphthalocyanine structure, wherein a crystallite diameter of the pigment is not smaller than 20 nm and a primary particle diameter of the pigment is not larger than 500 nm.
1. An electrophotographic photoconductor comprising:
a conductive substrate;
a photosensitive layer on said conductive substrate; and
said photosensitive layer containing a pigment being a plurality of crystallites composed of molecules having a titanylphthalocyanine structure, wherein a diameter of said crystallite is not smaller than 20 nm and a diameter of a primary particle formed from said plurality of crystallites is in the range of 220 nm to 500 nm.
2. An electrophotographic photoconductor, according to claim 1 :
wherein a diameter of said primary particle is not larger than 300 nm.
3. An electrophotographic photoconductor, according to claim 2 , wherein:
said photosensitive layer contains titanylphthalocyanine pigment having diffraction peaks in an X-ray diffraction chart measured by means of a focusing method with an X-ray of Cu Kαline at Bragg angles 2θ±0.2° of 7.5°±0.2°, 10.2°±0.2°, 16.2°±0.2°, 22.5°±0.2°, 24.2°±0.2°, 25.3°±0.2°, and 28.6°±0.2°.