发明名称 |
Charging member having an elastic foam member including cell portions whose gap ratio is 5% to 50%, charging apparatus, process cartridge, and image forming apparatus having such charging member |
摘要 |
A charging member for charging a member to be charged, includes an elastic foam member provided at a surface of the charging member. The elastic foam member includes a plurality of cell portions with wall portion defining the cell portions. The gaps connecting the cell portions have areas which are not less than 5% and not more than 50%, for respective cells.
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申请公布号 |
US6904253(B2) |
申请公布日期 |
2005.06.07 |
申请号 |
US20020123248 |
申请日期 |
2002.04.17 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HOSOKAWA TAKAHIRO;ISHIYAMA HARUMI;CHIGONO YASUNORI;HIRABAYASHI JUN |
分类号 |
G03G5/147;G03G15/02;(IPC1-7):B03G15/02 |
主分类号 |
G03G5/147 |
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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