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CHARGING ROLL AND METHOD OF PRODUCING THE SAME

  • US 20100267537A1
  • Filed: 04/12/2010
  • Published: 10/21/2010
  • Est. Priority Date: 04/15/2009
  • Status: Abandoned Application
First Claim
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1. A charging roll comprising a shaft, an electrically conductive rubber foam layer formed on an outer circumferential surface of the shaft, and a surface layer formed radially outwardly of the electrically conductive rubber foam layer,wherein the electrically conductive rubber foam layer includes a skin layer having an opening area ratio of from 0.5 to 20% at a superficial layer of the electrically conductive rubber foam layer, and the surface layer is formed of a synthetic resin composition mainly composed of a synthetic resin material having a glass transition temperature of from 0 to 45°

  • C.

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