Brother EM-850fx User Manual page 186

[7] Connect the plug to the jack located on the back of the typewriter.
8
[ ] Install the paper guide unit.
Insert the right rod end into the hole provided on the right side of the
tractor feeder, bend the paper guide unit gently, and insert the left rod end
in the hole on the left side.
The feeder is now completely installed. To remove the feeder, turn off the
typewriter and unplug the connector of the feeder. Then hold the feeder on
both sides and lift it up while rotating it toward you until the C-shaped hooks
and gears come off.
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