Brother HL-2400C Service Manual page 502

USER'S GUIDE
5-30
2. Check the three alignment pins on the Lower Tray Unit. Use two
people to Lift the printer and put it onto the Lower Tray Unit. Be sure
to use the handholds which are located at four corners at the bottom of
the printer. Check to see if the alignment pins locate correctly into the
printer.
3. Insert the Metal Parts into both sides of the Lower Tray Unit from
above and secure with the screws.
Fig. 5-35 Insert the Metal Parts and Secure with the Screws
4. Insert the connection cable to the printer's connector.
Fig. 5-36 Insert the Connection Cable
5. Fit the covers on both sides of the Lower Tray Unit.
Fig. 5-37 Fit the Cover