1. Remove the lower left cover. (Lower Left Cover)  
    View of the main drive unit (a)
  2. Disconnect the connector (b) of the drum motor 1 (M7) (a). Release the wire from seven hooks (c).
  3. Disconnect three connectors (b) from the engine relay PCB (PCB21) (a). Release the wire (c) from eight hooks (d).
  4. Disconnect the connector (b) of the drum motor 2 (M8) (a).
  5. Release the wire from two hooks (f) of the wire guide (e).
  6. Disconnect the connector (d) of the developer motor (M5) (c).
  7. Disconnect two connectors from the engine relay PCB (PCB21) (a).
  8. Release the wire from four hooks (c) of the wire guide (b).
  9. Lift the handle [A] and open the top tray [B].
  10. Detach toner cartridge Y (a).
  11. Remove the screw (a)(M3x12).
  12. Remove the lever cover (b).

  13. Lift up the drive release lever (c).
    *: When raising the lever, the joint of the drive coupling is released.

    • If omitting to attach the lever cover, "Cover open" message is displayed while the exit tray switch (SW2) is not turned on.


  14. Remove six screws (a)(M3x8).
  15. Detach the main drive motor unit (b).

    *: When detaching the main drive motor unit (a), pull out the drive release lever (b) from the drive release joint (c).
  16. Check the main drive motor unit and clean or replace it if necessary.

  17. Reattach the parts in the original position.

    • After reattaching the main drive motor unit (a), check if the couplings for driving he ITB unit, the developer unit and the drum unit are relocated by being connected with the drive release lever (b).

    • Attach the main drive motor unit (a) after confirming the drive coupling is at the release position.
      (Drive release joint (b) is raised.)
    • Insert the drive release lever (b) into the drive release joint (c) when reattaching the main drive motor unit (a)
      Do not turn the developer motor (M5) (d) in the reverse direction of the engraving arrow (e).