公开(公告)号：US20080240822A1

公开(公告)日：2008-10-02

申请号：US12041068

申请日：2008-03-03

申请人： Seung Bok JUNG

发明人： Seung Bok JUNG

IPC分类号： G03G15/00

CPC分类号： G03G15/234 ,  G03G2215/00586

摘要： A duplex image forming apparatus includes a driving unit which has driving rollers and driven rollers to reversely feed the paper printed on the first surface to a duplex printing part or discharge the paper printed on the first and second surfaces, and a separation unit which separates the driven rollers from the driving rollers while the paper printed on the first surface is reversely fed and registered by duplex rollers of the duplex printing part. Accordingly, when the paper is registered by the duplex rollers, because the paper is not caught in the driving rollers and the driven rollers, the paper can be easily registered.

摘要翻译： 双面图像形成装置包括：驱动单元，其具有驱动辊和从动辊，用于将印刷在第一表面上的纸反向进给到双面打印部分或排出印刷在第一和第二表面上的纸张;以及分离单元， 在打印在第一表面上的纸张被双面打印部件的双面辊反向进给和记录时，来自驱动辊的从动辊。 因此，当纸张被双面辊子登记时，由于纸张没有卡在驱动辊和从动辊中，所以纸张可以容易地登记。