Toshiba e-studio 223 Operator's Manual For Copying Functions page 93

3
Pull out the toner cartridge.
Never attempt to incinerate toner cartridges. This could cause an explosion.
Do not dispose of used toner cartridges. Contact your service representative.
4
Shake the new toner cartridge strongly with the label surface down
to loosen the toner inside.
10
5
Pull out the seal in the direction of the arrow.
Replacing Toner Cartridge 91