Sheet transportation device

A sheet transportation device transporting a band-shaped sheet in a longitudinal direction thereof, the sheet transportation device comprising:

• a guide roll located in a transportation path for the sheet and extending in a width direction of the sheet, the sheet being to be wound along the guide roll,
• wherein:
• the sheet includes a plurality of tabs provided intermittently in the longitudinal direction thereof, along at least one end thereof in the width direction thereof, the plurality of tabs each protruding in the width direction beyond the at least one end,
• the guide roll includes:
• a cylindrical roll main body located closer to a center, in the width direction, of the sheet than a transportation path for the at least one end of the sheet along which the plurality of tabs are provided, a portion of the sheet that is closer to the center in the width direction than the at least one end being wound along the roll main body, and
• a short-diameter portion connected, via a stepped portion, with the roll main body so as to be outer, in the width direction, to the roll main body, the short-diameter portion having an outer diameter shorter than an outer diameter of the roll main body, and
• the outer diameter of the roll main body is shorter than a length of each of the plurality of tabs in the longitudinal direction of the sheet.