| 摘要 |
A duplex image forming device includes an image forming device and a reversible transportation unit. The image forming device includes a paper transportation path, a paper feed unit which transports a paper to the paper transportation path, a printing unit which prints an image onto the paper, a discharge tray where the paper printed with the image is discharged, a manual paper feed tray which is attached to a side of the image forming device, and a storage opening which is provided at a side of the image forming device and stores the manual paper feed tray. The reversible transportation unit is inserted into a side of the image forming device to cover the upper part of the storage unit. The reversible transportation unit includes a reversible transportation path for transporting out to an upstream side of the printing unit, the paper transported from the downstream side of the printing unit of the paper transportation path. The reversible transportation path is formed by passing through the storage opening.
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