Isakhiwo sekhatriji yesihlungi esime mpo sisetshenziselwa ukwenza lula ukumuncwa kothuli nokususwa kothuli; futhi ngenxa yokuthi impahla yokuhlunga inyakaza kancane ngesikhathi sokususwa kothuli, impilo ye-cartridge yesihlungi yinde kakhulu kunaleyo yesikhwama sokuhlunga, futhi izindleko zokunakekela ziphansi.