Samsung Msys SF-830 - Manual (Page 27)

I NSTALLATION 1.12
3 If the cartridge locking lever is on the lower position, turn
the lever upward until it locks into place.
4 Remove the drum cartridge from its bag and slide it into the
product firmly until it locks into place completely.
5 Remove the toner cartridge from its bag. Gently shake the
cartridge to loosen the toner.
Thoroughly shaking the cartridge will assure maximum
copies per cartridge.