Model discontinued. This page is no longer updated.


FAQs & Troubleshooting

FAQs & Troubleshooting

How do I install the optional Duplex Unit?



  • This printer is heavy and weighs approximately 31.5 kg (69.4 lb). To prevent injuries, use at least two people to lift the printer.
  • When you lift the printer, be sure to use the handholds at the bottom four corners of the printer.
  • Do not carry the printer when the lower tray unit and/or the duplex unit are attached.
  • When moving or lifting this printer, keep the printer flat. To avoid spills, you must first remove the toner cartridges and waste toner pack.


  1. Turn off the printer power switch and unplug the printer.

  2. Remove the duplex upper cover, duplex lower cover and duplex cap at the back of the printer. We recommend removing the covers and the cap with a coin or a screwdriver.

  3. Remove the protective part.

  4. Use the handholds of the duplex unit to lift it up.

  5. Insert the bottom of the duplex unit into the grooves in the printer, and then insert both the hooks of the duplex unit to the holes of the printer.

  6. Open the duplex back cover and duplex inside unit.

  7. Pull out the 2 green sleeves covering the screws as far as they will come. Turn the green sleeves to tighten the screws of the duplex unit to the printer. Once the screws are fully tight, push the green sleeves back in.

  8. Put the hook on the left hand side of the duplex unit into the hole of the printer. Secure the screw of the duplex unit to the printer.

  9. Connect the connector cable to the printer.

  10. Plug the printer into the AC power outlet/socket and turn on the printer power switch.


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If you need further assistance, please contact Brother customer service:

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