QMS Magicolor WX User Manual page 148

12 Hold the new oil bottle over its slot (spout-end down and
label facing the printer's front). Lower the bottle in place,
making sure the spout is aligned with the pin in the fuser
slot. The top of the bottle should be flush with the top of the
fuser unit.
13 Close the oil bottle retainer, making sure the spring latch is
securely in place, then close the paper exit unit.
If you have trouble closing it, make sure the separator pawl unit is
completely closed (see step 9).
14 Replace the printer's top cover and turn on the main power
switch.