To easily perform the cleaning of the interior of a ticketing unit.

A cleaning member 1 in which a carrier stop bar 5 is provided at the location in front of a carrier part 4 is provided and a carrier stop part having almost the same width and thickness as roll paper and having a stop hole at the tip part on either one of the sides is used and the carrier stop bar 5 is inserted into the stop hole of the carrier stop part. Further, the tip part on which the carrier stop part is provided and the tip part on the opposite side are inserted into the carrier part 4 at first and a cleaning member 1 is carried. When the cleaning member 1 is carried up to a prescribed location, the cleaning member 1 is stopped by the carrier stop bar 5 and the parts of the carrier part 4 and a printing part 8 are cleaned.