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Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

  • US 7,901,855 B2
  • Filed: 12/17/2009
  • Issued: 03/08/2011
  • Est. Priority Date: 07/18/2008
  • Status: Active Grant
First Claim
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1. An electrophotographic photosensitive member comprising a support, a charge generation layer provided on the support and a charge transport layer containing a charge transporting material and a binder resin formed on the charge generation layer, the charge transport layer serving as a surface layer of the electrophotographic photosensitive member, wherein:

  • the charge transport layer 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 in 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,the siloxane moiety is a structure represented by the following formula;

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