Cleaning blade for electrophotographic device and method for manufacturing the same
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United States of America Patent
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Jun 19, 2012
Grant Date -
Jun 17, 2010
app pub date -
Nov 8, 2007
filing date -
Dec 22, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a cleaning blade for an electrophotographic device, which, even when spherical (perfectly spherical or irregularly shaped), polymerized toner with a small particle diameter is used, can achieve sufficient abrasion resistance and sufficient cleaning ability (particularly cleaning ability under low-temperature and low-humidity conditions). The cleaning blade for an electrophotographic device 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 a material with a JIS-A hardness of 65° to 72° at 23° C. and a rebound resilience of 10 to 35%. The base layer is made of a material with a JIS-A hardness of 70° to 80° at 23° C. and a rebound resilience of 40 to 70%, the JIS-A hardness value being larger than the value of hardness of the edge layer.
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