A furniture system, method of assembling furniture for a work space, and a fastening apparatus for interconnecting furniture components include one or more fastening devices. The jet head ejects the droplets onto the substrate based on the droplet ejection information so as to form the functional device in the functional device forming area. After identification of the type of glow plug, stored sets of parameters, which correspond to the type of glow plug determined, are likewise called upon to control the glow plugs. The electronic computing component when integrated to the logic board is coupled to the logic board by coupling the connector to a matching socket of the logic board. The demultiplexers are connected to a scheduler and multiplexer to provide an output bit stream at a given channel rate. Each form cylinder and the impression cylinder cooperating with the latter are mounted, adjustably in terms of their mutual spacing, in side walls of the printing unit.