• When installing this option, turn OFF the main power and unplug the power cord from the wall socket. If installing without turning OFF the main power, an electric shock or a malfunction may occur.

  1. Take out of the box, and remove the orange tape and shipping retainers.
  2. Pull out the finisher interface cable, and move it away from the machine.
  3. Remove the finisher rear cover [A] (×3).
  4. Open the top cover, and then remove the arm [A] (×1).

  5. Open the finisher front cover, and remove the three knobs (x1).

    • Knobs with a lock mechanism are removed using a knob screwdriver or similar while releasing the lock.

  6. Pull the saddle stitch unit [A] or stapling unit.

  7. Remove the finisher inner cover [A] (×3).

    • Remove the connector at the back of the inner cover.

  8. Cut off part of the finisher inner cover [A].
  9. Remove the supporting plate [A] (×3).
  10. Remove the guide plate [A] (×4).
  11. Insert and attach the hopper guide plate [A] from the front (×4).
    At this time, pass the harness [B] through the clamp [C].
  12. Attach the stay [A] (×3).

    Front [B]: Insert the holes in the stay over the embossed parts on the finisher.
    Rear [C]: Place the shaft of the stay through the notch in the finisher.
  13. Insert and attach the guide plate [A] from the rear (×2).
  14. Insert and attach the side-to-side detection unit [A] from the rear (×2).
    Front: The two shafts of the unit are passed through bearings in the finisher.
  15. Connect the harness [A] of the hopper guide plate to the relay connector [B] of the side-to-side detection unit, and then clamp the harness.
  16. Insert and attach the punch unit [A] from the rear.
  17. Attach the punch unit movement motor unit [A] so that the gear [B] meshes firmly (×2).
  18. Insert the hopper [A].
  19. Connect the provided harness to the punch unit board [A] and the control board [B] of the finisher (×6).
    Use Harness (short) for SR3220 and Harness (long) for SR3210.
  20. Remove the harness [A] from the clamp [B], and connect it to the punch unit board [C] (×1).
  21. Connect the harness [A] of the side-to-side detection unit to the relay connector [B] of the harness (×1).
  22. Connect the harness [A] of the punch unit movement motor unit to the punch unit board [B] (×1).


  23. Attach the supplied cover [A] to the punch unit board.
  24. Clamp the harnesses.
    For SR3220

    For SR3210
  25. Reattach the finisher rear cover.
  26. Reattach the finisher inner cover and three knobs.
  27. Close the front cover.
  28. Close the top cover.
  29. Reconnect the finisher to the machine, and connect the interface cable.
  30. Turn ON the main power.
  31. Check that the punch can be selected at the operation panel, and check the operation.