1. Open the upper right cover [A].
  2. Move down the paper tray. To do this, cover the photo sensor with your left hand and press the bottom plate operation button [A].
  3. Move the front side fence [A] and rear side fence [B] to the B4 or LG position.
  4. Close the upper right cover to move the paper tray up. (The paper tray stops in about 30 seconds.)
  5. Switch the machine off and unplug the machine.
  6. Disconnect the LCIT power connector from the machine.
  7. Remove the right cover of the LCIT. (LCIT RT4020 (D709))
  8. Release the LCIT from the main machine.
  9. Slide the LCIT [A] against the main machine, and then remove it from the rail [B].
  10. Remove the following covers. (LCIT RT4020 (D709))
    • Upper right cover
    • Upper left cover
    • Rear left cover
    • Rear cover
    • Left cover
  11. Remove the lower limit sensor bracket [A].
  12. Install the lower limit sensor bracket [A] at the higher position.
  13. Pull the sensor connector wire removed in step 11 through the hole [A] from the left side of the LCIT.
  14. Release the sensor connector wire from the clamp [B].
  15. Put the sensor connector wire to the right side of the LCIT through the hole [A].
  16. Connect the sensor connector wire to the lower limit sensor [A].
  17. Attach the harness clamp to the rear of the plate [A]. Use this clamp to hold the sensor connector wire.
  18. Reattach the following covers.
    • Left cover
    • Rear cover
    • Rear left cover
    • Upper left cover
  19. Remove the right stay [A].
    Bring back or discard the stay after removing it.
  20. Attach the front bracket [A] with the beveled corner down.

    • If the brackets are not easy to install, lift the bottom plate with your hand.

  21. Attach the rear bracket [B] with the beveled corner down.
  22. Attach the bottom plate extension [C] with the hex screws.
  23. Attach the B4/LG frame [A] with the hex screws.

    Insert the positioning pin [B] of the B4/LG frame [A] into the hole of the LCIT.

  24. Attach the right cover [B].
  25. Attach the upper right cover [A] provided with the 8 1/2" x 14" Paper Size Tray Type M2.
  26. Install the LCIT on the main machine. (LCIT RT4020 (D709))
  27. Plug in and turn ON the machine.
  28. Go into the SP mode and do 5-959-003.
  29. Input "5" for B4 SEF or "6" for 8.5" x 14" SEF.