发明名称 |
Charging device, process cartridge, and image forming apparatus |
摘要 |
A charging device includes a case that surrounds a charging unit and has plural ventilating sections, a gas separating unit that varies a component ratio of the air near an opposed portion of a photosensitive member and the charging unit, and a gas electrolyzing unit that electrolyzes moisture of the area near the opposed portion. The gas separating unit has a nitrogen enriching unit that includes a nitrogen enriching film set in a ventilating section and a pressurizing chamber for forming a pressure difference between the inside and the outside of the case and supplies a nitrogen enriched air to the inside of the case or an oxygen enriching unit that includes an oxygen enriching film set in another ventilating section and a depressurizing chamber for forming a pressure difference between the inside and the outside of the case and exhausts an oxygen enriched air to the outside of the case.
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申请公布号 |
US2005169660(A1) |
申请公布日期 |
2005.08.04 |
申请号 |
US20040006735 |
申请日期 |
2004.12.08 |
申请人 |
YAMADA MASAAKI;TAKAHASHI TOMOKO;HIRAI SHUJI;NAKAGAWA YOSHINORI;NAKAZATO YASUSHI |
发明人 |
YAMADA MASAAKI;TAKAHASHI TOMOKO;HIRAI SHUJI;NAKAGAWA YOSHINORI;NAKAZATO YASUSHI |
分类号 |
G03G15/02;G03G21/20;(IPC1-7):G03G21/20 |
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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