发明名称 |
Image forming apparatus supplying toner efficiently to cleaning means cleaning surface of image bearing member |
摘要 |
An image forming apparatus of the present invention is composed by an image bearing member that bears a toner image; an intermediate transferring material that contacts with the image bearing member; a transferring unit that transfers a toner image on the image bearing member to the intermediate transferring material at a transferring position; a bias applying unit that applies a bias to a power supply portion of the transferring unit during a period in which transfer is performed by the transferring unit; a cleaning unit that contacts with the image bearing member and cleans the surface of the image bearing member; a toner supplying unit that, when an image is not being formed, passes a toner image for supply that is formed on the image bearing member through the transferring position to supply the toner image for supply to the cleaning unit; and a switching unit that switches from a state in which the power supply portion is electrically connected to the bias applying unit to a state in which a resistance value between the power supply portion and a ground is 100 MOmega or more.
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申请公布号 |
US2005089342(A1) |
申请公布日期 |
2005.04.28 |
申请号 |
US20040937310 |
申请日期 |
2004.09.10 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TAKURA KEIZO;KIDAKA HIROYUKI;ARIMURA KOJI;HISAKUNI HISATAKA;OKI MAKOTO |
分类号 |
G03G15/00;G03G15/16;G03G21/00;G03G21/10;(IPC1-7):G03G15/16 |
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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