发明名称 |
Service life informing device for charged member, informing method thereof, process cartridge and image forming apparatus |
摘要 |
A life informing device for a charge body includes a body to be charged, and a charging member for charging the charge body. The charging member is adapted to receive an oscillating voltage and to be in contact with the charge body during the charging operation. Also provided is an informing device for visually or acoustically informing the user whether the charge body reaches the end of the life time thereof, based on an accumulated time of the application time during which the oscillating voltage is applied.
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申请公布号 |
US5835818(A) |
申请公布日期 |
1998.11.10 |
申请号 |
US19960772876 |
申请日期 |
1996.12.26 |
申请人 |
CANON KASBUSHIKI KAISHA |
发明人 |
HOSHIKA, NORIHISA;HIBI, TAKASHI;SHOJI, TAKEO;ISHII, YASUYUKI;OGATA, HIROAKI;TESHIMA, EIICHIRO |
分类号 |
G03G15/00;(IPC1-7):G03G15/00 |
主分类号 |
G03G15/00 |
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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