Brother HL-4200CN Service Manual page 51

3) Open the top of the new print head cartridge box and pull of the top part of the
aluminum package.
Note:
Remove the sheet by working inward from the two notches.
4) Grip the handle on top of the print head cartridge and gently lift it. Place the
cartridge on a flat surface.
Note:
Lift the print head cartridge by the handle. Do not allow the cartridge to touch
anything when removing it from the box.
When setting the print head cartridge, do not shake or tilt them.
5) Remove the polystyrene packing and open the top of the aluminum package from
the left and right.
Fig.2-18
Fig.2-19
Fig.2-20
II-8