Electrophotographic photosensitive member, manufacturing method of electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
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United States of America Patent
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Aug 8, 2017
Grant Date -
Jul 28, 2016
app pub date -
Jan 12, 2016
filing date -
Jan 26, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An electrophotographic photosensitive member comprises a support, an undercoat layer, a charge generation layer and a hole transporting layer disposed in this order. The undercoat layer contains silica particles and a polymer of a composition including an electron transporting material having a polar group selected from the group consisting of a hydroxy group, a thiol group, an amino group, a carboxy group and a methoxy group, and a cross-linking agent. The content of the electron transporting material in the composition is 30 to 70 mass % relative to the total mass of the composition and the content of the silica particles in the undercoat layer is 1 to 30 mass % relative to the total mass of the electron transporting material.
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