Installation guides:





· Step-1 Shake the toner from side to side for 3-5 seconds to make toner well-distributed.



· Step-2 Pull off the seal tape from side of the toner.



· Step-3 Remove orange protective cover from toner.



· Step-4 Insert toner cartridges into drum unit (not included) until it clicks into right place.



· Step-5 Insert the drum unit (with the toner installed) into your printer.