# PCB Head Relay Board

1. Remove one screw.
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
2. Slide the Right SC Cover (A) while pushing the dent (B) of Right SC Cover, and release the three tabs. Remove the Right SC Cover (A).
   
3. Remove one screw.
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
4. Slide the Left SC Cover (A) while pushing the dent (B) of Left SC Cover, and remove it.
   
5. Remove one screw, and remove the Lower SC Reinforcing Plate (A).
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
6. Reattach the Lower SC Reinforcing Plate (A) in its portrait orientation, then secure it with the screw.
   
   
   • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
7. Remove the screw.
   
   
   • : C.SHOULDER S-TITE,3X5
8. Open the ADF/SCN Unit (A).
   
9. Open the ADF/SCN Unit (A) and extend the support stand (B) as far as it goes, then support the ADF/SCN Unit with the support stand.

   
   

   Caution / 注意

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

   Check Point / チェックポイント

   When closing the ADF/SCN Unit (A), press the switch (C) on the ADF/SCN support stand (B) and hold up the ADF/SCN Unit to disengage the two hooks, then fold the ADF/SCN support stand.

10. Disconnect the five Head FFCs (C) and five Head Relay FFCs (B) from PCB Head Relay Board (A).

    
    

11. Remove the two screws, then remove the PCB Head Relay Board (with Mounting Plate) (A).
    
    
    • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
12. Remove the two screws, then remove the two Mounting Plates (B) from the PCB Head Relay Board (A).

    
    

    • : C.B.S-TITE-SCREW-3x8-F.ZN-3C
13. Remove the PCB Head Relay Board (A).