Embodiments of the present invention provide a framework for facilitating the deployment of management tunnels between management and managed devices. The block-level timing constraints are in the form of one or more logical timing constraint points at the input and output ports of block-level circuits. To form the edge seal an uncured edge sealing material curable by radiation transmitted by the protective layer is placed in the gap and cured by transmitting radiation through the protective layer. As the insertion of the media cartridge into the cartridge receptacle continues, the shifting ribs shift the length of media and the ink ribbon toward one of the print head and the platen roller. The at least one guiding screw member is arranged in the at least one slot and is configured for driving the at least one movable positioning member to move. Said unit can be displaced in a controlled manner in a controlled travel movement between an initial position and a position which centers andor clamps the respective container.