| 摘要 |
PURPOSE: An image reproducing device capable of duplex printing is provided to improve printing efficiency, to reduce manufacturing costs and to maximize operation efficiency of the device. CONSTITUTION: An image reproducing device capable of duplex printing includes a print paper cassette(10,20), a pick-up unit(120) for picking up the print paper, the first transfer means(113,115) for transferring the picked paper in one direction, and a development unit(130) for forming a toner image on the paper. The device further has a fixing unit(160) for fixing the toner image to an image, a duplex printing unit(180) for reintroducing the paper that passed the fixing unit to the development unit to form an image on the back side of the paper, and a discharge unit(170) for discharging the paper. The duplex printing unit is included inside the main body of the system to form a print paper circulation route through which the paper is reintroduced into the development unit.
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