# USB Host Assy

1. Remove the two screws.
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
2. Disengage the two hooks by sliding the Right SC Cover (A) toward the rear of the product, then remove it.
   
   
   
3. Remove the screw.
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
4. Slide the Left SC Cover (A) toward the rear of the product to disengage the tab.
   
5. Disengage the three tabs by inserting a flathead screwdriver into the gap between the Left SC Cover (A) and the ADF Unit (B), and then remove the Left SC Cover (A).
   
6. Open the Duplex Print Cover (A).
   
7. Remove the two screws, then remove the Connector Cover (A).
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
8. Remove the two screws, then remove the Right Housing Assy (A) toward the rear of the product.
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
9. Remove the two screws.
   
   • : C.C.S-TITE-3x6-F.ZN-3C
10. Raise the ADF Stopper (A) to lock the ADF Unit.
    
11. Secure the ADF Stopper with one of the screws you removed at step 1.
    
    • : C.C.S-TITE-3x6-F.ZN-3C
12. Hold the ADF/SCN Unit (A) with both hands as shown above, and open the ADF/SCN Unit (A).
    
13. Open the ADF/SCN Unit (A) and extend the support stand (B) as far as it goes, then support theADF/SCN Unit (A) with the support stand.

    
    

    Caution / 注意

    Make sure that the extended support stand is fixed with the two hooks, and the two triangle marks face to each other.

    Check Point / チェックポイント

    When closing the ADF/SCN Unit, hold down the switch on the support stand and raise the ADF/SCN Unit in the direction of the arrow to disengage the two hooks, then fold the support stand.

14. Remove the Stacker Assy (A).
    
    
    
15. Remove the Cassette Assy (A).
    
16. Open the Front Cover Assy (A).
    
17. While pressing the two hooks of the hinge (A), remove the Front Cover Assy (A) frontward.
    
18. Remove the three screws that secures the Front Right Housing (A).
    
    
    • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
19. Disengage the two hooks, and remove the Front Right Housing (A).
    
20. Remove the Front Cover Hinge Right (B) from the Dowel on the Front Inner Housing Right (A).
    
21. Remove the four screws, then remove the Front Inner Housing Center (A) frontward.
    
    
    • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
22. Remove the USB Host Cable (CN106) (A) and the Speaker Cable (CN504) (B) from the connector of the Main Board.

    
    

23. Remove the Front Cover Sensor Cable from the connector (CN31) (A) of the PCB Mechanism Relay Board.

    
    

24. Release the Speaker Cable and the Front Cover Sensor Cable from the three clamps (A).
    
25. Release the USB Host Cable, Speaker Cable and the Front Cover Sensor cable from the five clamps (A).

    
    

26. Remove the two screws, and remove the Front Inner Housing Right Assy (A).

    
    

    • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
27. Remove the two screws, and remove the USB Host Assy (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZN-3C