| 摘要 |
PROBLEM TO BE SOLVED: To provide a stable coating liquid for forming a photoreceptive layer having high productivity, and a production method of the coating liquid, and to moreover, provide a high-performance electrophotographic photoreceptor and an image forming apparatus which can produce high-quality images under various operating conditions without the manifestation of image defects, such as black spots, colored spots. SOLUTION: In a method for preparing the coating liquid for forming the photoreceptive layer of an electrophotographic photoreceptor, containing a charge-generating material and a binder resin, a dispersion medium having a mean particle size of 1.0 to 350μm is used as the dispersion medium for dispersing the charge generation material in the coating liquid for forming the photoreceptive layer. The coating liquid for forming the photoreceptive layer, prepared by the present method, is preferable for the formation of the photoreceptive layer of the electrophotographic photoreceptor. It is also preferable that a phthalocyanine pigment be used as the charge generation material, and that the 50% cumulative value (D50) of particle size distribution of the phthalocyanine pigment in the coating liquid be 0.13μm or smaller when it is measured by the dynamic light-scattering method. COPYRIGHT: (C)2008,JPO&INPIT
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