发明公开
EP1324153A2 Transfer device for forming a stable transfer electric field, an image forming apparatus including the transfer device and a image transferring method subject to a constant-current control
有权
传送装置，用于与所述转印装置提供的图像形成设备和用于图像传输用恒定电流控制的方法产生稳定的电场
- 专利标题： Transfer device for forming a stable transfer electric field, an image forming apparatus including the transfer device and a image transferring method subject to a constant-current control
- 专利标题（中）： 传送装置，用于与所述转印装置提供的图像形成设备和用于图像传输用恒定电流控制的方法产生稳定的电场
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申请号： EP02023742.6申请日： 2002-10-23
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公开(公告)号： EP1324153A2公开(公告)日： 2003-07-02
- 发明人: Ogiyama, Hiromi , Katoh, Kohki , Sugino, Akihiro , Takahashi, Mitsuru , Kawagoe, Katsuya , Sawai, Yuji
- 申请人： Ricoh Company, Ltd.
- 申请人地址： 3-6, Nakamagome 1-chome, Ohta-ku Tokyo 143-8555 JP
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： 3-6, Nakamagome 1-chome, Ohta-ku Tokyo 143-8555 JP
- 代理机构： Schwabe - Sandmair - Marx
- 优先权： JP2001330505 20011029
- 主分类号： G03G15/16
- IPC分类号： G03G15/16
摘要：
A transfer device (10) transfers a visual image from an image carrier (8) to a recording medium (S). The transfer device (10) includes a first transfer element (10a) that moves and receives the visual image from the image carrier (8) on a first surface of the first transfer element (10a), a second transfer element (3) provided opposite to the first surface of the first transfer element (10a) to pinch and convey the recording medium (S) through a transfer nip part formed between the first surface of the first transfer element (10a) and the second transfer element (3), and a facing member (2,12,22,32) provided on a second surface of the first transfer element (10a) opposite to the first surface of the first transfer element (10a). The facing member (2,12,22,32) faces the second transfer element (3) via the first transfer element (10a). The transfer device (10) further includes a constant-current power supply (4) that applies an electric voltage to a voltage application electrode (2a,12a,22a,32a) such that the visual image on the first surface of the first transfer element (10a) is transferred to the recording medium (S). The voltage application electrode is included in the facing member or in the second transfer element. A constant-current controller (11) controls a current which flows due to the electric voltage, to be constant.
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