| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a conductive elastic member for an image forming apparatus, capable of stably providing a uniform resistance with minimized environmental variation or current-carrying variation thereof; and to provide an image forming apparatus using the conductive elastic member. <P>SOLUTION: The conductive elastic member for image forming apparatus is based on an elastomer which is obtained by blending lithium imide as an ion conductive material to an elastic resin material, and has a resistance value adjusted to 7-9 [logΩ]. As the elastic resin material, a polyurethane prepared by reacting and curing an isocyanate component and a polymer polyol component is used, wherein the polymer polyol component has a ratio of hydrophilic polymer/hydrophobic polymer of 20/80 to 30/70, and the polyurethane has a resistance of 11-13 [logΩ]. <P>COPYRIGHT: (C)2011,JPO&INPIT |
