The invention relates, among other items, to a device (10) with a plurality of inlets (27a, 27b, 27c, 27d, 27e, 27f) and one outlet (19), wherein each of the inlets (27a, 27b, 27c, 27d, 27e, 27f) can be connected to a material supply container (13a, 13b, 13c, 13d, 13e, 13f). An actuator (12) that can be displaced relative to the inlets and has a through-channel (42) is furnished in order to provide a switchable connection between one of the plurality of inlets and the outlet. A communicative connection can be created between the through-channel and one of the various inlets in order to allow various materials to be successively supplied to the outlet. One of the characteristic features is that at least one of the inlets (28) is designed as a flushing medium inlet of a flushing device (47) and that, as a result of the actuator (12) being displaced, a communicative connection can be created between the through-channel (42) and the flushing medium inlet for the purposes of flushing the through channel.