发明授权
US09519243B2 Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing
有权
用于具有用于调色剂水平感测的角度偏移变化的磁体的图像形成装置的可更换单元
- 专利标题： Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing
- 专利标题（中）： 用于具有用于调色剂水平感测的角度偏移变化的磁体的图像形成装置的可更换单元
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申请号： US14953714申请日： 2015-11-30
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公开(公告)号： US09519243B2公开(公告)日： 2016-12-13
- 发明人: Brian Scott Carpenter , Robert Watson McAlpine , Michael Craig Leemhuis
- 申请人： Lexmark International, Inc.
- 申请人地址： US KY Lexington
- 专利权人： Lexmark International, Inc.
- 当前专利权人： Lexmark International, Inc.
- 当前专利权人地址： US KY Lexington
- 代理商 Justin M. Tromp
- 主分类号： G03G15/08
- IPC分类号： G03G15/08 ; G03G15/09 ; G03G21/18
摘要：
A replaceable unit for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing toner. A rotatable shaft is positioned within the reservoir and has an axis of rotation. A first magnet and a second magnet are connected to the shaft and rotatable around the axis of rotation in response to rotation of the shaft. The first magnet and the second magnet are detectable by a magnetic sensor when the replaceable unit is installed in the image forming device. A polarity of the first magnet is oriented opposite a polarity of the second magnet relative to the shaft. An amount of angular offset between the first magnet and the second magnet varies depending on an amount of toner in the reservoir.
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