发明名称 |
Biased charge roller with embedded electrodes with post-nip breakdown to enable improved charge uniformity |
摘要 |
Electrodes are embedded in a biased charge roller of a xerographic device. The electrodes, which may run the length of the roller, are deposited on an insulating substrate. A semi-conductive conformable layer of a flexible elastomer covers the electrodes. The semi-conductive conformable layer limits current flow between electrodes and relaxes charge deposited on the roller surface. Stationary pre-nip and post-nip contacts apply the bias to the imbedded electrodes. The electrodes in the post nip region are biased to V<SUB>POST</SUB>. The electrodes positioned in the pre-nip regions are either grounded or biased to V<SUB>PRE</SUB><V<SUB>POST</SUB>. The electroded biased charge roller may generate air breakdown in the post nip region, resulting in highly uniform charging.
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申请公布号 |
US2005286934(A1) |
申请公布日期 |
2005.12.29 |
申请号 |
US20040875554 |
申请日期 |
2004.06.25 |
申请人 |
XEROX CORPORATION |
发明人 |
DIRUBIO CHRISTOPHER A.;THOMPSON MICHAEL D.;FLETCHER GERALD M.;RADULSKI CHARLES A. |
分类号 |
G03G15/02;(IPC1-7):G03G15/02 |
主分类号 |
G03G15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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