Oki C542 User Manual page 85

While removing consumables, be careful not to hit them to the LED head.
Possible to get burned.
Do not throw used image drum and toner cartridge in the fire. They may explode, and
the toner inside may fly off and cause getting burned.
5
Unpack a new image drum and place it on the flat surface.
6
Remove the desiccant pack.
7
Remove the toner cover.
8
Unpack a new toner cartridge.
9
Shake the cartridge several times vertically and horizontally.
10
Remove the tape (c) from the toner cartridge.
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5. Maintenance