A heat dissipater within a linear motor system comprising a core, the core having a base and a projecting portion projecting from the base; the heat dissipater in thermal contact with the core; and a coil wrapped around both the core and the heat dissipater. The digital data is indicative of an intensity value Ii for each position in each i-th spectral band. A wedge-shaped press member is coupled with the sliding bar, which during a movement of the sliding bar causes the dispensing member to move in a direction transverse to the movement of the sliding bar. The first outlet forms a gas outlet for discharging a gaseous portion of the first medium and a liquid outlet for discharge of liquid of the first medium.