发明授权
US06463244B2 Image forming apparatus, developing device therefor and image forming process unit
有权
图像形成装置，其显影装置和图像形成处理单元
- 专利标题： Image forming apparatus, developing device therefor and image forming process unit
- 专利标题（中）： 图像形成装置，其显影装置和图像形成处理单元
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申请号： US09814726申请日： 2001-03-23
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公开(公告)号： US06463244B2公开(公告)日： 2002-10-08
- 发明人: Katsuhiro Aoki , Hajime Oyama , Takashi Hodoshima
- 申请人： Katsuhiro Aoki , Hajime Oyama , Takashi Hodoshima
- 优先权： JP2000-085391 20000324
- 主分类号： G03G1508
- IPC分类号： G03G1508
摘要：
A developing device for an image forming apparatus includes a developing roller for conveying toner deposited thereon to a developing region where it faces a photoconductive element. A magnet brush roller conveys a two-ingredient type developer, which consists of toner and magnetic particles, deposited thereto to a toner supplying region where it faces the developing roller. In the toner supplying region, only the toner is supplied from the magnet brush roller to the developing roller. The distribution of the number of toner particles for an amount of charge differs from the developing roller to the magnet brush roller.