Brother HL-3400CN Series User Manual page 173

USER'S GUIDE
5-16
7. Insert the new Belt Cartridge into the printer guides with the flat side
facing you.
Fig. 5-17 Inserting the new Belt Cartridge
8. Press the Belt Cartridge Lock Levers on both sides of the OPC Belt
Cartridge to the rear to lock the cartridge into the printer.
9. Close the Front Cover and the Top Cover.
10. Press the Power button to turn the printer On.
11. Press the Sel button and take the printer Off Line.
12. Press the Reset button while holding down the Shift button.
13.When you see "RESET PRINTER" on the LCD panel, press the
(UP) or (DOWN) button and select "RESET PARTS LIFE". Press
the Set button and select "OPC BELT" with the
(DOWN) button.
14. Press the Set button, the printer is now On Line.
(UP) or