A device for rolling up a printed sheet while protecting the printing indicia on the sheet, which comprises a plurality of plate means which define a roll-forming space, first means defining a first transport path for transferring the printed sheet to the roll-forming space to be rolled up therein, second means defining a second transport path for transferring a cover sheet to the roll-forming space to be rolled up therein in juxtaposition to the printed sheet whereby the printed sheet is rolled up together with the cover sheet in the roll-forming space.