| 摘要 |
PROBLEM TO BE SOLVED: To ensure proper storage stability of a coating liquid for a photosensitive layer, and to provide a monolayer electrophotographic photoreceptor, using titanyl phthalocyanine crystals having superior sensitivity and wear resistance. SOLUTION: The monolayer electrophotographic photoreceptor has a photosensitive layer, comprising a binder resin containing at least an electric charge generating agent and an electric charge transport agent on an electrically conductive substrate, the electric charge generating agent contains titanyl phthalocyanine crystals which does not have a peak in temperature change from 50 deg.C to 400 deg.C, other than a peak due to the evaporation of adsorbed water in differential scanning thermal analysis and the photosensitive layer contains a polyalkylene glycol compound of the formula A1-O-[(CH2)m-O]n-A2 (where A1 and A2 are the same or different and each a 1-50C alkyl or aryl or -CO-R10; R10 is a 1-50C alkyl or aryl; (m) is an integer of 1-5; and (n) is an integer of 2-100).
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