发明名称 |
Device for notifying a remaining amount of a developer, a process cartridge, and an electrophotographic image forming apparatus |
摘要 |
A developer-remaining-amount notifying device for notifying a remaining amount of a developer accommodated in a developer accommodating unit and used for developing a latent image formed on an electrophotographic photosensitive member is provided. The device includes a position detection member positionable near an upper surface of an accumulated layer of the developer accommodated in the developer accommodating unit, a regulating member, and a notification device. The regulating member regulates a moving direction of the position detection member such that the position detection member moves substantially linearly in accordance with a gradual decrease of the developer accommodated in the developer accommodating unit as the developer is used for development. The notification device notifies a remaining amount of the developer accommodated in the developer accommodating unit in accordance with a position of the position detection member.
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申请公布号 |
US5923918(A) |
申请公布日期 |
1999.07.13 |
申请号 |
US19970962644 |
申请日期 |
1997.11.03 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NAKAGAWA, TAKAO;TSUDA, TADAYUKI;SASAKI, SHINICHI |
分类号 |
G03G21/00;G03G15/08;G03G21/18;(IPC1-7):G03G15/08 |
主分类号 |
G03G21/00 |
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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