发明授权
- 专利标题: Meterless single component development
- 专利标题(中): 无单元组件开发
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申请号: US537660申请日: 1990-06-14
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公开(公告)号: US5047806A公开(公告)日: 1991-09-10
- 发明人: Grace T. Brewington , John F. Knapp
- 申请人: Grace T. Brewington , John F. Knapp
- 申请人地址: CT Stamford
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: CT Stamford
- 主分类号: G03G15/06
- IPC分类号: G03G15/06 ; G03G15/08
摘要:
An apparatus which develops a latent image recorded on an image receiving member with marking particles. A chamber in a developer housing stores a supply of charged marking particles. The marking particles having a charge distribution. A donor roll is positioned in the chamber of the housing to transport marking particles closely adjacent to the latent image to develop the latent image. A rotating, elongated member moves the marking particles. An electrical bias is applied between the elongated member and the donor roll to selectively attract marking particles from the elongated member to the donor roll. The marking particles attracted to the donor roller have a charge distribution with a selected range. The range of the charge distribution of the marking particles attracted to the donor roller is less than the range of the charge distribution of the marking particles being moved by the elongated member.
公开/授权文献
- US5653632A Photosensitive driving device 公开/授权日:1997-08-05
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