PURPOSE: To obtain double-side copies corresponding to the rounding sequence of one-side originals even if a partition, etc. are not inserted between the same by providing the 1st feeder which delivers the paper contained in the 1st tray to a copying section and the 2nd feeder which delivers the upset paper contained in the 2nd tray to the copying section.

CONSTITUTION: The guide pawl of a conveying path selector 220 is set to an arrow (a) side and the paper feeder 211 is driven only for the odd-numbered sheets among the one-side originals on the original tray 101 so that the paper on the tray 210 is fed to the copying section and the copied paper is upset and is contained in the tray 230 in the operation of the 1st round of an automatic original delivery device 100. The guide pawl of the selector 220 is set to an arrow (b) side and the paper feeder 231 is driven for the even-numbered sheets of the originals so that the paper copied on the opposite side and contained in the tray 230 is fed to the copying section in the operation of the 2nd round of the original. The paper is subjected to copying on the rear side and is then discharged from the conveying path PAP4 onto a discharge tray 240.