| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cleaning blade for electrophotographic devices, even when spherical (perfectly spherical or irregularly shaped), polymerized toner with a small particle diameter is used, capable of compatibly achieving sufficient abrasion resistance and cleaning property (particularly cleaning property under low-temperature and low-humidity conditions). <P>SOLUTION: The cleaning blade for electrophotographic devices includes an elastic rubber member, and a supporting member. The elastic rubber member has a double layer structure including an edge layer and a base layer. The edge layer is made of polyurethane with a JIS-A hardness of 65-72° at 23°C, a rebound resilience of 37-60%, and 200% modulus of 3-8 MPa at 23°C. The base layer is made of polyurethane with a JIS-A hardness of 65-70° at 23°C, and a rebound resilience of 5-30%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
