Abstract: The labeler of this invention is a single drum labeler that comprises a label adhering drum having label suction holes disposed at equal intervals in odd number of places of the peripheral surface of the drum, and a closing rod freely detachably entered from an open hole to close an unnecessary label suction hole. A feeder feeds an article, to which the label piece is adhered, in synchronization with the label sucked to the label suction hole of every other position. A pressing device presses the fed-in article to the adhering drum and adhering the label. A heat-sensitive adhesive activation device is disposed substantially around the drum opposite to a drum surface along the peripheral edge of the label adhering drum.

Abstract: The labeler of this invention is a single drum labeler having an adhering drum only. A heat-sensitive adhesive activating labeler is disposed opposite to substantially the full peripheral surface of the drum, and a sucking surface is adjusted by closing a suction hole according to the size of a label.