PURPOSE: To quickly perform distribution work, in the captioned device simultaneously performing copying work or the like and leaf aligning work, by providing each tray in a stepped state, finishing successive distribution of the first page copy to each tray, and then reversely distributing the second page copy from a position finished with distribution.

CONSTITUTION: The first paged sheets P1WP50 are distributively stored respectively to 50 trays 73 successively from the upper position, if the 50th sheet in the first page is finished with copying, a finishing signal of one-time operation, showing the finish of copying for the 50th sheet in the document page, is fed to a one-time operation stopper 113 of a sheet distributor device II from an inverting action device 106 counting a setting number of sheets (50 sheets) in a copying machineI. The one-time operation stopper 113 turns off an electric circuit of a motor 49 for performing an intermittent feed, while switches the circuit to an inversion circuit. When copying of 50 sheets in the second page is started, the first sheet passes through a detecting member 105, and its signal closes the electric circuit of the motor 49, and the motor is reversely rotated by the inversion circuit to move a sheet guiding means 41 upward from the lower, then the guiding means 41 is stopped, in a position upward by the pitch of 1 tray, facing to the tray 73 accepting the second sheet in the second page.