PURPOSE: To save labor for assorting the discharged originals by installing a plurality of original discharge ports for discharging originals and a discharge port selecting means for selecting the original discharge ports for each kind of original.

CONSTITUTION: When an original is set onto an upper stage original board 7, said setting is detected by an original sensor S1, and the original board 7 is set at an original feeding port 17. Then, the upper stage original board 7 selecting signal is outputted into a controller, and further, an upper stage original feeding board 10 is selected, and an original discharge port selector valve 45 is driven by a motor, and the shift of the original to the position leading to the upper stage original discharge passage 42 is performed. When the processing for the original set onto the original board 7 is completed, and the original is set onto a lower stage original board 9 and an original sensor S2 is turned ON, the original board 9 is set at the original feeding port 17, and a selection signal is outputted into the controller, and a lower stage original discharge board 11 is selected, and a selector valve 45 is shifted to the position for the lead of the lower stage original discharge port 43 by a motor. At this time, an auxiliary roller 47 is lowered, and driven by a motor.