An apparatus for cleaning toner cartridges by means of compressed air has at least one cleaning chamber (1, 2) and a conveyor line (3) leading through this at least one cleaning chamber (1, 2). The conveyor line (3) is provided with variable-position means of conveying individual parts (M, T, G) of toner cartridges. Variable-position compressed air nozzles (11) are arranged in the cleaning chambers (1, 2). This apparatus permits automatic, efficient, environmentally friendly cleaning of toner cartridges.