The present invention relates to a locking and emptying system of a refill cartridge 1 in a receiving socket 2 of the refill cartridge 1, said system comprising at least one receiving socket 2 for locking and emptying said refill cartridge 1 in the receiving socket 2, a locking mechanism of the refill cartridge 1 in every receiving socket 2, discharge means of the refill cartridge 1, control means of the locking and empting system and an emptying container for each refill cartridge 1.