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ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER

  • US 20130323632A1
  • Filed: 03/01/2012
  • Published: 12/05/2013
  • Est. Priority Date: 03/03/2011
  • Status: Active Grant
First Claim
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1. An electrophotographic photosensitive member, comprising:

  • a cylindrical support;

    a conductive layer comprising a binder material and a metal oxide particle formed on the cylindrical support; and

    a photosensitive layer formed on the conductive layer, whereinthe metal oxide particle is a titanium oxide particle coated with tin oxide doped with phosphorus;

    when an absolute value of a maximum current amount flowing through the conductive layer in a case of performing a test of continuously applying a voltage of −

    1.0 kV comprising only a DC voltage to the conductive layer is defined as Ia [μ

    A], and an absolute value of a current amount flowing through the conductive layer in a case where a decrease ratio of a current amount per one minute flowing through the conductive layer reaches 1% or less for the first time is defined as Ib [μ

    A], the Ia and the Ib satisfy the following relations (i) and (ii); and


    Ia≦

    6000  



    (i); and


    10≦

    Ib  



    (ii),a volume resistivity of the conductive layer before the test is performed is from 1.0×

    108 to 5.0×

    1012 Ω

    ·

    cm.

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