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    • 2. 发明授权
    • Short passive duplex unit and method of use
    • 无源双工单元及其使用方法
    • US07561823B2
    • 2009-07-14
    • US11278907
    • 2006-04-06
    • Kevin Matthew JohnsonRonald Todd Sellers
    • Kevin Matthew JohnsonRonald Todd Sellers
    • G03G15/00
    • G03G15/231G03G2215/00438G03G2221/1696
    • A removable duplex unit for an image forming peripheral having a simplex media feedpath and a reversible roller for moving media in a first direction through the peripheral and in a second direction through the duplex unit, includes an auxiliary housing adapted to be removably connected to the image forming peripheral, the auxiliary housing having therein a curved duplex media feedpath of a preselected length extending through the auxiliary housing in feeding communication with the reversible roller in the simplex media feedpath wherein the duplex feedpath in the auxiliary housing is passive and does not provide energy to media passing through the duplex media feedpath.
    • 一种用于具有单面介质进给路径的成像外围设备的可移动双面打印单元和用于通过所述外围设备沿第一方向移动介质并通过所述双面打印单元沿第二方向移动介质的可逆辊,包括适于可拆卸地连接到所述图像的辅助壳体 所述辅助壳体具有延伸穿过所述辅助壳体的预选长度的弯曲双面介质进给路径,以在所述单面介质进给路径中与所述可逆辊进给连通,其中所述辅助壳体中的所述双重进给路径是被动的,并且不向 媒体通过双面媒体馈送路径。