Brother HL-4200CN Service Manual page 49

3) Remove the cardboard spacers from the paper tray.
Note:
Keep the spacers in case you need to transport the printer over long distances in
the future.
4) Holding the paper tray with both hands, align it with the opening in the printer and
gently insert it.
5) Push the paper tray completely back into the printer.
Note:
Do use excessive force on the paper tray. Doing so could damage the paper tray
or the inside of the printer.
Fig.2-12
Fig.2-13
Fig.2-14
II-6