- 专利标题: Sheet carrying apparatus
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申请号: US507611申请日: 1995-07-19
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公开(公告)号: US5609428A公开(公告)日: 1997-03-11
- 发明人: Naoya Tanaka , Hiroshi Fukumoto , Keiichi Fukazawa , Mitsuaki Tanaka
- 申请人: Naoya Tanaka , Hiroshi Fukumoto , Keiichi Fukazawa , Mitsuaki Tanaka
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX6-174466 19940726; JPX7-164132 19950629
- 主分类号: B41J13/00
- IPC分类号: B41J13/00 ; B41J13/10 ; B65H7/08 ; B65H7/20 ; B65H9/00 ; B41J11/42
摘要:
A sheet carrying apparatus reduces skew of a sheet during carriage, and realizes high-quality print. A position detecting sensor detects a position in a direction perpendicular to a sheet carrying direction of the sheet carried by a sheet carrying roller. A skew angle of the sheet is calculated depending upon a deviation of the detected position from a predetermined reference position. Load rollers are on the right and left sides with respect to a sheet center line in the sheet carrying direction, and are respectively opposed to following rollers through the sheet so as to bring the sheet into pressure contact. A torque limiter to apply a braking force to the load roller, and the load roller are coupled or released by electromagnetic clutches. Thereby, the carrying forces can independently be controlled on the right and left sides of the sheet depending upon the skew angle.
公开/授权文献
- US4979298A Shaving system 公开/授权日:1990-12-25