| 摘要 |
PROBLEM TO BE SOLVED: To provide 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 a long service life, and to provide an image forming apparatus using the photoreceptor, and an electrophotographic cartridge using the photoreceptor. SOLUTION: 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≤0.1μm and the cumulative 90% particle diameter is≤0.3μm. COPYRIGHT: (C)2006,JPO&NCIPI
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