Samsung ML-4512ND-XAA - Manual (Page 64)

Replacing the imaging unit
64 3. Maintenance
4 Thoroughly shake the imaging unit 5 or 6 times to distribute
the toner evenly inside the imaging unit.
5 Remove the protection cover and seal.
6 Hold the imaging unit by the handle and slowly insert the new
imaging unit into the opening in the machine.
Tabs on the sides of the imaging unit and corresponding
grooves within the machine will guide the imaging unit into
the correct position until it locks into place completely.
• Do not touch the green surface of the imaging unit.
• To prevent damage to the imaging unit, do not expose it
to light for more than a few minutes. Cover it with a piece
of paper, if necessary.
7 Reinsert the toner cartridge.
8 Close the front cover. Ensure that the cover is securely closed.