At a download time, each of multiple printers connecting with a network identifies storage or non-storage of any unsent download request file, which has not yet been sent to a management server. Said pivot drive comprises a housing provided with ports for introducing a hydraulic medium, a piston which is arranged inside the housing and can be axially displaced by the effect of the hydraulic medium, and an output shaft which is provided with coarse threads and interacts with the piston in order to cover the axial displacement of the piston into a rotational movement. The gas supply pipe can thus be fixed without employing any special fixing member, thereby reliably preventing blockage of the gas nozzle that would cause interference with smooth issuing of the gas and preventing damage to a base fabric of the airbag by the heat and pressure of the gas. This comparison may be a function of a distance from at least one point defined by a set of the filtered positional data to a road in the road network database and an angle between a line representing a best fit for plural points defined by corresponding plural sets of the filtered positional data to a line defined by a road in the road network database. The latency may be increased andor decreased dynamically.