发明授权
- 专利标题: Liquid development electrophotographic device
- 专利标题(中): 液体显影电子照相装置
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申请号: US10466485申请日: 2002-08-05
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公开(公告)号: US06898404B2公开(公告)日: 2005-05-24
- 发明人: Satoshi Sakai , Isao Nagata , Hironaga Hongawa , Shigeharu Okano , Eri Yamanishi , Yutaka Nakashima , Akihiko Inamoto , Tadashi Nishikawa , Norihiro Yamasaku
- 申请人: Satoshi Sakai , Isao Nagata , Hironaga Hongawa , Shigeharu Okano , Eri Yamanishi , Yutaka Nakashima , Akihiko Inamoto , Tadashi Nishikawa , Norihiro Yamasaku
- 申请人地址: JP Ishikawa
- 专利权人: PFU Limited
- 当前专利权人: PFU Limited
- 当前专利权人地址: JP Ishikawa
- 优先权: JP2001-249815 20010821; JP2001-394635 20011226
- 国际申请: PCTJP02/07947 WO 20020805
- 国际公布: WO0301700 WO 20030227
- 主分类号: G03G15/11
- IPC分类号: G03G15/11 ; G03G15/10
摘要:
A liquid-development electrophotographic apparatus forms on a toner-image-bearing body a plurality of color images developed by a plurality of developing units, one for each color, that use liquid toner. One or more carrier-removing units for removing excessive carrier from a toner layer that forms a toner image are disposed downstream of each developing unit and upstream of the next developing unit disposed upstream of the former developing unit with respect to a process progress direction. Each carrier-removing unit includes two or more conductive collection rollers to which a bias voltage is applied in such a direction as to press toner against the toner-image-bearing body and which is brought into contact with the toner-image-bearing body. The upstream roller is rotated in the same direction as the direction of surface movement of the toner-image-bearing body, whereas the downstream roller is rotated in the opposite direction. The result is that influence of carrier on the already transferred image is suppressed, and hence occurrences of irregular transfer of the images and occurrences of disturbance of the already transferred image are minimized.
公开/授权文献
- US20040047656A1 Liquid development electrophotographic device 公开/授权日:2004-03-11