Belt Or Roller Has Three Or More Solid Layers On Support Or Core Patents (Class 430/124.38)
  • Patent number: 7991341
    Abstract: An electrophotographic fixing member is provided, which is excellent in toner releasability and hard to change in rubber elasticity of a silicone rubber elastic layer. The fixing member is laminated with a substrate, a cured silicone rubber layer, a cured silicone rubber adhesive layer and a fluorine resin layer, wherein when infrared light absorption strength ratios (1020 cm?1/1260 cm?1) at 1020 cm?1 and 1260 cm?1 determined by sampling the portions of 5 ?m and 20 ?m from the outer surface of the cured silicone rubber layer are taken as ?(5) and ?(20), respectively, a relationship of ?(5) and ?(20) satisfies 1.03??(5)/?(20)?1.30 and ?(20) is 0.8 or more and 1.2 or less.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: August 2, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhisa Matsunaka, Kazuo Kishino, Masaaki Takahashi