Lexmark C910 Setup Manual page 24

Note:
the guide rail.
18
Set up the printer and paper handling options
Attaching the guide rail
and feeder
Make sure all four casters are on
1
Align the two holes on guide rail
with the studs on the docking
frame.
2
Slide the guide rail down until it is
fully seated on the docking rail.
3
Place the high-capacity feeder on
the guide rail.