In an inkjet printer (P), a feeding side tension applying means (90) is provided with a feeding side tension adjustment mechanism (96), which is structured of a feeding side ballast arm (98) that is extended toward a winding side tension applying means (120) and vertically swingable around a rotation shaft (94) perpendicular to a feeding direction of a printing medium (M) and a feeding side ballast member (99) that is attached to a tip end of the feeding side ballast arm (98), and a winding side tension applying means (120) is provided with a winding side tension adjustment mechanism (126) which is structured of a winding side ballast arm (128) that is extended toward the feeding side tension applying means (90) and vertically swingable around a rotation shaft (124) perpendicular to the feeding direction of the printing medium "M" and a winding side ballast member (129) that is attached to a tip end of the winding side ballast arm (128). The feeding side tension adjustment mechanism (96) and the winding side tension adjustment mechanism (126) are displaced from each other in a direction perpendicular to the feeding direction of the printing medium (M) and are partly overlapped with each other in a side view where the feeding direction is a front direction.
