Abstract: A copying apparatus includes a sorter which has a plurality of bins, a binding unit for binding the sheets taken-out from each of the bins, a first path for transporting the sheets ejected from a copying machine to the sorter, a second path for transporting the sheets to the binding unit. Sheets are conducted to the first path when a sorting mode is selected, but to the second path regardless of the selection of the sorting mode when the input number of copy sets is 1. Further, the copying apparatus includes a first roller and a second roller for taking-out the sheets from the bins, wherein, the second roller is moved down to pinch the sheets on the bin in cooperation with the first roller when the bin reaches the sheet take-out position, and then the sheets on the bin are taken-out to the binding unit by the rotation of the rollers.