Abstract: A print paper sheet checker includes a supply portion for supplying print paper sheets, a feeding mechanism and a feeding path that feed the print paper sheets set in the supply portion one by one, a check sensor provided to the feeding path, a stacker for successively accommodating print paper sheets passed through the feeding path, a display portion for making various kinds of displays and plural operating switches. As the print paper sheets to be checked, plural kinds of tickets are set to be adaptable in advance and any ticket type can be further added.