Samsung SCX-8128NA-XAA - Manual (Page 127)

Troubleshooting_ 127
3. Remove the new toner cartridges from its bag.
CLX-92x1 / 93x1 Series
SCX-812x Series
4. Thoroughly roll the cartridge five or six times to distribute the toner
evenly inside the cartridge.
CLX-92x1 / 93x1 Series SCX-812x Series
5. Carefully pull the sealing tape out of the toner cartridge..
CLX-92x1 / 93x1 Series
SCX-812x Series
If toner gets on your clothing, wipe it off with a dry cloth and wash
clothing in cold water. Hot water sets toner into fabric.
6. Hold the toner cartridge and align it with the corresponding slot inside
the machine. Insert it back into its slot until locks in place.
CLX-92x1 / 93x1 Series SCX-812x Series
7. Close the front door. Ensure that the door is securely closed.
CLX-92x1 / 93x1 Series SCX-812x Series
If the front door is not completely closed, the machine will not
operate.