| 摘要 |
A method and apparatus for extending the useful life of a fuser roller having ends, a length greater than a central portion of the fuser roller, the central portion of the fuser roller having ends, and end portions of the fuser roller extending from the ends of the central portion of the fuser roller to the ends of the fuser roller, at least a portion of the fuser roller being coated during operation with a release agent by contact with a wick roller, the wick roller including a porous ceramic wick roller body having ends, a length greater than a central portion of the wick roller, the central portion of the wick roller having ends, a release agent supply line in fluid communication with a central cavity in the wick roller body, a release agent impermeable coating over lengths of the wick roller body between the ends of the wick roller and the ends of the central portion of the wick roller, and a release agent transfer surface over the outside of the wick roller and the release agent impervious coating by positioning openings in the impermeable coating and in fluid communication with the wick roller body and the release agent transfer surface. The method and apparatus are also effective with fuser belt systems.
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