Oki MC573dn User Manual page 160

3
Press the button (A) and open the output tray (b) completely.
The fuser unit is extremely hot. Do not touch it.
4
Identify an empty toner cartridge by its label color.
5
Pinch the tip of blue lever (c) of the toner cartridge and turn it toward you until
the tip aligns on the lug of the cartridge.
Burns may result.
6
Lift the toner cartridge (d) from right side, and remove it from the machine.
Never throw used toner cartridges into a fire. They may explode, and the toner inside
may fly off and cause burns.
While removing consumables, be careful not to hit them to the LED head.
7
Unpack a new toner cartridge.
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8. Maintenance
Burns may result.