Lexmark C720 User Reference Manual page 77

3
Rotate the left and right green oil bottle locking levers to unlock the oil bottle.
4
Lift the oil bottle from the printer.
Note: Oil may drop from the bottom of the oil bottle. You can place a piece of paper under
the bottle after you lift it to prevent oil from dropping on the printer, floor, or your
clothing.
5
Remove the new oil bottle from its packaging material.
6
Align the oil bottle with the slots in the printer.
77
Oil bottle