发明申请
US20150301469A1 CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS 有权
充电会员,过程盒和电子照相设备

  • 专利标题: CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
  • 专利标题(中): 充电会员,过程盒和电子照相设备
  • 申请号: US14680034
    申请日: 2015-04-06
  • 公开(公告)号: US20150301469A1
    公开(公告)日: 2015-10-22
  • 发明人: Takehiko AoyamaTaichi SatoTomohito Taniguchi
  • 申请人: CANON KABUSHIKI KAISHA
  • 优先权: JP2014-086421 20140418
  • 主分类号: G03G15/02
  • IPC分类号: G03G15/02
CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
摘要:
Provided a charging member including an electro-conductive substrate and a surface layer. The surface layer includes a binder resin, and a resin particle that roughens the surface layer. A surface of the charging member has a plurality of protrusions each derived from the resin particle. The resin particle has a pore inside thereof, has a porosity Vt of 1.5% by volume or more and 45.0% by volume or less, and has a first and second regions. The first region has a porosity V1, the second region thereof has a porosity V2, and V1 is larger than V2.
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