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2. 发明授权

US5495276A Uniform media tensioning of print media during transport in laser printer 失效
标题翻译：在激光打印机运输期间打印介质均匀的介质张力
公开(公告)号：US5495276A
公开(公告)日：1996-02-27
申请号：US229412
申请日：1994-04-18
申请人： Paul K. Mul , John W. Huffman
发明人： Paul K. Mul , John W. Huffman
IPC分类号： B41J13/00 , B41J13/02 , B65H23/188 , G03G15/00 , H04N1/12
CPC分类号： G03G15/6529 , G03G15/6573 , G03G2215/00371 , G03G2215/00405 , G03G2215/00409 , G03G2215/00413
摘要： There is provided an arrangement within an electrophotographic printer that helps reduce deformation in the media by ensuring that the media remains under a constant tension. The arrangement uses a first roller for moving the media through the electrophotographic printer at a given linear velocity. A second roller, placed after the first roller, also moves the media through the electrophotographic printer. However, the second roller has a variable linear velocity, where the variable linear velocity having a maximum linear velocity that is greater than the first roller's linear velocity. Power is applied to the second roller through a clutch. When the maximum amount of power is being applied to the second roller, the clutch limits the variable linear velocity to that of the first roller's linear velocity. Thus, the clutch limits the variable velocity when the media is under a known tension, wherein the known tension is constant in the media while the media moves through the electrophotographic printer.
摘要翻译：提供了电子照相打印机内的布置，其通过确保介质保持在恒定张力下来帮助减少介质中的变形。该装置使用第一辊以给定的线速度移动介质通过电子照相打印机。放置在第一辊之后的第二辊也将介质移动通过电子照相打印机。然而，第二辊具有可变的线速度，其中可变线速度具有大于第一辊的线速度的最大线速度。通过离合器对第二辊施加电力。当对第二辊施加最大功率时，离合器将可变线速度限制到第一辊的线速度。因此，当介质处于已知张力下时，离合器限制可变速度，其中当介质移动通过电子照相打印机时，介质中已知的张力恒定。

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