Invention Grant
US07901855B2 Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus 有权
电子照相感光构件,处理盒和电子照相设备

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
Abstract:
A charge transport layer serving as a surface layer of an electrophotographic photosensitive member contains a polyester resin having a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), as a binder resin; the content of a siloxane moiety of the polyester resin is not less than 5% by mass and not more than 30% by mass relative to the total mass of the polyester resin; and the content of the polyester resin in the charge transport layer is not less than 60% by mass relative to the total mass of the whole binder resin in the charge transport layer.
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