| 摘要 |
<p>This invention provides a highly stable coating liquid for undercoating layer formation, an electrophotographic photoreceptor, which can form a high-quality image under various service environments and, at the same time, is less likely to develop image defects such as black spots and color spots, and has high performance and long service life, an apparatus for image formation using the photoreceptor, and an electrophotographic cartridge using the photoreceptor. The coating liquid for undercoating layer formation for an electrophotographic photoreceptor, containing titanium oxide particles and a binder resin is characterized in that the volume average particle diameter of titanium oxide aggregate secondary particles in the coating liquid is not more than 0.1 µm and the cumulative 90% particle diameter is not more than 0.3 µm.</p> |
