A device for conveying paper sheets provided with: a conveyor belt (24) moving in the paper sheet feeding direction; a driving roller (42) rotating in one direction at any time; a separating roller (41) capable of coming into or going out of contact with said driving roller (42) across a given gap and exclusively with the conveyor belt (24); and separating means to reversely convey paper sheets on said conveyor belt (24) toward the upstream side to separate them when said separating roller (41) comes into contact wih said driving roller (42); in which said driving roller (42) is supported by a swingable supporting arm (44) and ajusting means (50) is disposed on said supporting arm (44) for adjusting said given gap. <IMAGE>
