Refill Brother TN-310, TN-315, TN-320, TN-325, TN-328 Cartridges
Pretty simple to refill this Brother cartridge only one point to note starter cartridges do not come with the reset flag gear and spring at the back, you will have to purchase them.
First remove the label over the refill plug, remove the plastic plug please take care you will need this after refilling.
IMPORTANT REMOVE ALL THE OLD TONER FROM THE CARTRIDGE IF YOU MIX TONER IT CLOGS TOGETHER AND THIS WILL CAUSE POOR QUALITY PRINTS.
SHAKE THE NEW TONER WELL PUT THE FUNNEL ON AND REFILL THE CARTRIDGE WITH THE NEW TONER. NEXT FOLLOW THE VIDEO BELOW TO RESET THE FLAG GEAR.