the bypass groove 56 of the controlling cam 35 and thereby the deterring claw 49 engages with a ratchet tooth 45 and the paper feeding roller 10 is stopped in the early stage consequently the recording paper for the next cycle is fed by the paper draw out roller 9 up to the paper feeding roller 10 which means a preparation for the next cycle of copying after this when the optical system for exposure returns mostly to its original position the driven roller 39 of the action lever 32 is brought to the position of the protrusion 33a of the stopping flat cam 33 and thereby the wire drum 4 is stopped incidentally in the aforesaid example the optical system for exposure with a fixed platen is illustrated but it is apparent that the present invention may also be applied to the optical system for exposure with a movable platen as is obvious from aforesaid illustration the optical system for exposure may be moved forward and backward without any waiting time for continuous copying in the present invention and therefore it is possible to increase the number of copies produced per certain period of time in the concrete illustration on this point referring to fig1 a and b in fig1 represent the time charts for the optical system for exposure and the paper feeding roller in the conventional copying machine and charts c and d represent the time chart for the present invention as is apparent from the comparison between both charts there has been required a waiting time t before the optical system for exposure starts again for the forward movement for continuous copying because the paper feeding roller has been stopped concurrently with.