Lexmark 60 - Manual (Page 30)

Replacing the paper feed rollers in the optional input drawer 26
3
Install the upper roller.
a Use your right hand to press down lightly on the lower roller.
b While pressing the lower roller, slide the upper roller on the upper shaft until it
clicks into place.
To verify that the roller is secured on the shaft, pull lightly on the tab.
4
Close the paper router.