Toner drum ke karolo ea bohlokoa ea mochine oa khatiso, mochine oa khatiso oa laser, ho feta 70% ea likarolo tsa litšoantšo li tsepamisitsoe ka har'a moqomo oa toner, boleng ba khatiso bo hlile bo khethoa haholo ke moropa oa toner.Cartridge ea toner ha e khetholle feela boleng ba khatiso, empa hape e etsa qeto ea hore na mosebelisi o tla sebelisa chelete e kae ts'ebetsong.