发明申请
- 专利标题： Process Unit and Image Forming Device Including the Same
- 专利标题（中）： 过程单元和包括其的图像形成设备
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申请号： US13625181申请日： 2012-09-24
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公开(公告)号： US20130108322A1公开(公告)日： 2013-05-02
- 发明人: Takahiro Nishimoto
- 申请人： Takahiro Nishimoto
- 优先权： JP2011-239349 20111031
- 主分类号： G03G21/00
- IPC分类号： G03G21/00
摘要：
A process unit is capable of avoiding backset of residual toner from the collecting unit to an image carrier even after collection of the residual toner on the image carrier at the collecting unit. A first collecting member is positioned downstream of a transfer unit and upstream of a charger in rotational direction of an image carrier. The first collecting member is configured to allow a developing agent remaining on the image carrier to pass therethrough but to collect a paper dust on the image carrier. A second collecting member is positioned downstream of the first collecting member and upstream of the charger, and configured to allow a developing agent remaining on the image carrier to pass therethrough but to collect a paper dust on the image carrier. The control device controls the first collecting member to be applied with a polarity the same as that of the charger.
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