- 专利标题: IMAGE FORMING APPARATUS
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申请号: US17673643申请日: 2022-02-16
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公开(公告)号: US20220269206A1公开(公告)日: 2022-08-25
- 发明人: Shuichi Tetsuno , Shinsuke Kobayashi , Kazuhiro Funatani , Toshihiko Takayama , Jun Hara
- 申请人: CANON KABUSHIKI KAISHA
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: JP2021-027929 20210224
- 主分类号: G03G15/00
- IPC分类号: G03G15/00 ; G03G21/00
摘要:
An image forming apparatus includes an image bearing member, a charging member, a development member, a transfer member, a charging voltage application unit, a development voltage application unit, and a control unit. The development member collects toner that remains on a surface of the image bearing member after a toner image is transferred from the image bearing member surface to transfer material. The control unit controls application of a development voltage to apply, to the development member in a cleaning operation, a development voltage having a polarity that is opposite to a normal polarity, and controls application of a charging voltage to apply, to the charging member, a charging voltage having the normal polarity such that a potential difference formed at a charging portion between the applied charging voltage and a surface potential formed at the image bearing member surface is lower than or equal to a discharge start voltage.
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