1. Open the front cover [A].
  2. Remove the paper exit tray [A].

  3. Remove the left upper cover [A] (×1).

    • Slide the cover in the direction of the blue arrow.

  4. Remove the controller cover [A].
  5. Open the 1st and 2nd paper feed trays slightly.
  6. Remove the left cover [A].
    Remove it while pressing down.
  7. Remove the rear cover [A].
  8. Remove the rear lower gap cover [A] (hook×2).
  9. Remove the rear lower cover [A].
  10. Attach the heater board [A] (x3).
  11. Attach the clamps (LWSM-0306A). Connect the PSU harness [A] to CN904 of the PSU and CN920 of the heater board, and clamp the harness [A].
  12. Connect the BCU harness [A] to CN121 of the BCU and CN930 of the heater board.
  13. Clamp the harness.
  14. Clamp the harness [A] which was connected in step 12.
  15. Attach the clamp (LWS-1211A).
  16. Connect the PFU harness [A] to CN921 of the heater board.
  17. Attach the socket on the PFU harness [A] to the rear frame of the main unit.

     
  18. Connect the connector.
  19. Clamp the PFU harness (x3).