As my printer is portable since my wheel feet upgrade (see my other models) I'm using different places for printing. For some locations the AC cable was too short so I switched it with the one from my pc (3 meter cable). For clearing away the cable I designed this cable roller which can be installed on the back of your printer. Whenever I do not need the printer or move it from one location to the other I can wrap the cable and it's no more in the way..