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    • 7. 发明授权
    • Developing roller and image forming method employing the same
    • 显影辊和使用其的成像方法
    • US07672626B2
    • 2010-03-02
    • US11678314
    • 2007-02-23
    • Satoshi UchinoNobuaki KobayashiTakeo OshibaOkushi OkuyamaKouichi Sugama
    • Satoshi UchinoNobuaki KobayashiTakeo OshibaOkushi OkuyamaKouichi Sugama
    • G03G15/08
    • G03G15/0233
    • An objective is to provide a developing roller in which increase of residual potential is inhibited during repetitive operation without deteriorating interlayer adhesion, and prepared is a layer immediately below the surface capable of preventing fog caused by toner scattering, accompanied with a surface layer capable of preventing stains formed from foreign matters adhered to the surface, as well as preventing image unevenness since toner electrification is even under the presence of appropriate elasticity, and also to provide a image forming method employing the developing roller. Disclosed is a developing roller possessing an elastic layer made of silicone rubber provided around a conductive shaft, and a plurality of resin layers further provided on the elastic layer, wherein an outermost surface layer among the resin layers comprises silicone copolymerization polyurethane; and a layer immediately below the surface layer comprises a polyurethane resin-silica hybrid.
    • 目的是提供一种显影辊,其中在重复操作期间残留电位的增加被抑制而不会降低层间粘合性,并且制备为能够防止由调色剂飞散引起的雾的表面下方的层,伴随着能够防止 由于附着在表面上的异物形成的污渍以及由于调色剂带电而在存在适当弹性的情况下均匀地防止图像不均匀,还提供了使用该显影辊的图像形成方法。 公开了一种显影辊,其具有设置在导电轴周围的由硅橡胶制成的弹性层,以及还设置在弹性层上的多个树脂层,其中树脂层中的最外表面层包括硅氧烷共聚聚氨酯; 并且表面层正下方的层包含聚氨酯树脂 - 二氧化硅杂化物。