Brother International HL-3400CN Quick Setup Guide - English - Page 3

Step 3 Install the Toner Cartridges Pull off the tape labelled 'REMOVE' from the toner cartridge. After rocking each toner cartridge 3 to 4 times, remove the orange protective cover from the toner cartridges. Each toner color cartridge is individually keyed to prevent incorrect installation. Install the four toner cartridges by sliding each of them into the correct guide. Match each color cartridge color label to the corresponding color label on the printer. Close the Front Cover. Step 4 Install the Oil Bottle and Fuser Cleaner Release the Oil Bottle Lock Levers and the Fuser Cleaner Lock Levers. Set the Fusing Unit Pressure Release Levers to the SET position. Install the Oil Bottle into the Fusing Unit with the label side facing you. The Oil Bottle is keyed to prevent incorrect installation. Lock the Oil Bottle in place by turning the Oil Bottle Lock Levers. Place the Fuser Cleaner into the Fusing Unit with the roller side facing you. Lock the Fuser Cleaner in place by turning the Fuser Cleaner Lock Levers. Close the Top Cover.