• 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.

Removing the ADF rear cover
  1. Open the ADF top cover [A].
  2. Remove the screw, and lift up the original tray [B].
  3. Open the ADF [A], and release the five tabs of the ADF rear cover by using a thin screwdriver.
  4. Remove the ADF rear cover [A].
  5. Close the ADF.
Removing the ADF front cover
  1. Open the ADF top cover [A].
  2. Remove the screw, and lift up the original tray [B].
  3. Open the ADF, then release the three tabs of the ADF front cover [A].
  4. Close the ADF slightly, then remove the ADF front cover [A] while releasing the two tabs with a thin screwdriver.


Installing the double-feed sensor (emitter)
  1. Slide the shaft [A] of the original feed unit toward the rear to remove it.

  2. Remove the ADF inner cover [A].

    • Lift the back of the ADF inner cover [A] while swinging up the original tray [B], and then slide the ADF inner cover toward the back of the ADF unit.



  3. Remove the guard [A].
  4. Put the grounding plate [A] on the double-feed sensor (emitter) [B].
  5. Attach the double-feed sensor (emitter) [A] and grounding plate [B] as a set. (Tapping screw: 3x10)
Installing the double-feed sensor (receiver)
  1. Disconnect the harness [A] of the ADF top cover [B] from ADF relay board (CN5), and release the clamp.
  2. Remove the harness [A] from the harness guide.
  3. Remove the ADF top cover [A].
  4. Remove the five screws and release the four tabs, and then remove the inner cover [A].
  5. Attach the grounding plate [A] and the grounding wire [B], and insert the grounding wire in the notch. (Tapping Screw: 3x10)
  6. Connect the long harness to the double-feed sensor (receiver) [A].
  7. Attach the double-feed sensor (receiver) [A]. (Tapping screw: 3x10)
  8. Route the harnesses [B].

  9. Reattach the inner cover (x5), and then reattach the ADF top cover (x1).

    • Make sure the ADF top cover is set correctly so that the two tabs fit into the holes.

  10. Attach the clamp while the top cover is open, and attach the ground wire while putting it on the guide (marked by the blue arrow). (Screw: M3x6)
Connecting the harnesses

  1. Connect the harness to the connector of the double-feed sensor (emitter) [A] and ADF relay board [B] (CN3), and then route it.

    Connect with attention to the connector colors.

    - Double-feed sensor: White connector

    - ADF relay board: Black connector

  2. Connect the harnesses [A] from the ADF top cover to the connectors of the ADF relay board [B] (CN5, CN6).

  3. Reattach the covers and original feed unit.

    When reattaching the ADF inner cover, make sure that the shaft [A] fits into the groove (this is the shaft of the lock lever for the friction pad on the back side of the cover). If the shaft does not fit, the ADF top cover will not be closed.

    When reattaching the ADF inner cover [A], move it under the coupling shaft (marked by the dashed circle) of the original feed unit, and then you can install the ADF inner cover correctly.

After installing the double-feed sensor
  1. Connect the power cord and turn ON the main power.
  2. Enter the SP mode.
  3. Set the SP6-040-001 (Page Keeper: Mount Select) to “1(ON)”.
  4. Press [END] twice.
  5. Turn the main power OFF and ON.
  6. Login as Administrator.
  7. Press the "User Tools" icon.
  8. Press [Machine Features] > [System Settings] > [Administrator Tools].
  9. Check that [ADF Optional Double Feed Detection] is displayed.