14 respectively foldable bendable but which are separated from the rear wall layer 12 through a recess on the outer edge of the second longitudinal side wall layer 14 an oblique guide flank 21 is formed through which the second longitudinal side wall layer 14 narrows towards the front wall layer 15 in its height extension to an inlet height on the outer edge of the front wall layer 15 and on the lower edge of the second front wall gluing region 28 b recesses are provided in each case through which the front wall layer 15 and the front wall gluing region are narrowed to the inlet height on the outer edge of the first longitudinal side wall layer 13 a recess 18 see also fig1 for a guide arm 36 which is fastened to the lower part 30 is provided fig6 shows a cutting for a lower part 30 of board in the folded open view the lower part is of a continuous piece of corrugated board in which the corrugation direction in the figure runs in horizontal direction centrally in the lower part 30 the bottom 31 is shown in the figure on the right a front wall layer 35 adjoins the bottom 31 which comprises a rectangular ink outlet piece recess 40 and likewise rectangular receiving openings 39 for the contactless receiving of extensions on the printer side between bottom 31 and front wall layer 35 a front wall folding edge 44 is provided in the figure at the top and bottom adjoining the lid 31 are located the longitudinal side wall layers 33 and 34 which are separated from the bottom 31.