专利名称:Image heating apparatus and pressure
roller used for the apparatus
发明人:Hiroyuki Sakakibara,Yoji Tomoyuki,Yusuke
Nakazono
申请号:US102186申请日:20030818
公开号:US20040132597A1公开日:20040708
专利附图:
摘要:A pressure roller capable of stably transporting a paper and a film withoutdeteriorating inherent rubber elasticity while achieving low heat conductivity and
formation of finely foamed cell is developed. It is an object of the present invention toprovide a heating apparatus employing the improved pressure roller and an imageforming apparatus such as a copying machine or a printer employing the heatingapparatus as an image fixing device. The pressure roller includes a core metal, an elasticlayer of cured rubber composition at least containing a water-absorbing polymercontaining water and a surface releasing layer laminated on an outer periphery of thecore metal. A compression amount (y) of the elastic layer satisfies the followingrelationship: y≦0.8 (mm).
申请人:CANON KABUSHIKI KAISHA
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