- 专利标题: Image Forming Apparatus
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申请号: US11931481申请日: 2007-10-31
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公开(公告)号: US20080069595A1公开(公告)日: 2008-03-20
- 发明人: Tomoaki Hattori , Yukiko Nakaya
- 申请人: Tomoaki Hattori , Yukiko Nakaya
- 申请人地址: JP Nagoya-shi 467-8561
- 专利权人: BROTHER KOGYO KABUSHIKI KAISHA
- 当前专利权人: BROTHER KOGYO KABUSHIKI KAISHA
- 当前专利权人地址: JP Nagoya-shi 467-8561
- 优先权: JP2004-286538 20040930; JP2004-287443 20040930
- 主分类号: G03G15/08
- IPC分类号: G03G15/08
摘要:
An image forming apparatus includes: a plurality of development units having developing-agent carriers which are provided in correspondence to three or more developing agents, and developing electrostatic latent images on surfaces of image carriers to form developing-agent images on the image carriers; and a recovery unit that recovers the developing agent adhering to the developing-agent carrier during non-development operation. The recovery unit is provided for at least the development unit other than the development unit that transfers the developing-agent image first in sequence among the plurality of development units. When one of the plurality of development units performs development by the developing agent whose charge capability is higher than that of the developing agent of the development unit that transfers the developing-agent image later in sequence, the recovery unit starts recovery of the developing agent or performs recovery operation for improving recovery capability of the developing agent.
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