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    • 13. 发明授权
    • Automated sheet delivery to selected paths using reversible crenellated roller
    • 使用可逆的锯齿辊自动送纸到选定的路径
    • US06241236B1
    • 2001-06-05
    • US09452832
    • 1999-12-01
    • Kevin Bokelman
    • Kevin Bokelman
    • B65H522
    • H04N1/00572H04N1/00567H04N1/00602H04N1/00612
    • A method and apparatus of processing sheet media such as document sheets to be duplex scanned or media sheets on which two sided printing is to take place involves the controlled rotation of a transport roller assembly positioned in the media path in different directions such that moving media sheets engage a crenellated surface of the transport roller assembly which moves the leading edge of the moving sheet toward one or the other of two nips defined between the transport roller assembly and associated upper and lower pinch rollers or guides. The crenellated surface of the transport roller assembly includes grooves or spaces which extend in the direction of the leading edge of the sheet so that the leading edge of the sheet enters a moving groove to thus move the leading edge of the sheet in the desired direction. The direction of rotation of the transport roller assembly can be reversed before the sheet leaves the nip to thus re-route the sheet back in a desired path for further sheet processing.
    • 处理片材介质的方法和装置,例如待双面扫描的文件片材或要在其上进行双面打印的介质片材涉及在不同方向上定位在介质路径中的传送辊组件的受控旋转,使得移动介质片材 接合传送辊组件的锯齿状表面,其将移动片材的前缘朝向限定在传送辊组件和相关联的上下夹送辊或引导件之间的两个辊隙中的一个或另一个移动。 输送辊组件的锯齿状表面包括沿片材的前缘方向延伸的凹槽或间隔,使得片材的前缘进入移动的凹槽,从而使片材的前缘沿期望的方向移动。 传送辊组件的旋转方向可以在纸张离开辊隙之前反转,从而将纸张重新布置在期望的路径中以进一步进行纸张处理。