# Head Screw Assy (EP-C800 Series)

1. Remove the Rear Unit (A) in the direction of the arrow while pressing the buttons inward.
   
2. Open the ASF Cover (A) and remove the two screws securing the Rear Housing Assy (B).
   
   
   • : C.B.P-TITE-SCREW-3x10-F.ZB-3C
3. Remove the four screws that secure the Rear Back Cover (A).
   
   
   • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
4. Remove the Rear Back Cover (A) downward.

   
   

   Assembly / 組み立て

   Attach the two dowels of the Rear Back Cover (A) to the positioning holes on the Housing Left (B) and the Housing Right (C).

5. Remove the Rear Upper Cover Assy (A) in the direction of the arrow.

   
   

   Assembly / 組み立て

   Insert the four tabs of the Rear Upper Cover Assy (A) to the positioning holes of the Housing ASF (B).

6. Remove the two screws securing the Housing ASF (A).
   
   
   • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
7. Open the Printer Cover (A) and remove the four screws, and then remove the Housing ASF (B).
   
   • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
8. Remove the Printer Cover (A) upward.
   
9. Remove the three screws that secure the Housing Left (A).
   
   
   • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
10. Remove the two screws that secure the Housing Left (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
11. Lift the Housing Left (A) to release the two hooks each on the front side and rear side of the Housing Left (A), and then remove the Housing Left (A).
    
    

    Assembly / 組み立て

    Insert the four tabs on the Housing Left (A) to the positioning holes of the Ink Supply Unit (B).

12. Disengage the hook, and remove the Maintenance Box Cover (A).
    
13. Remove the three screws that secure the Housing Right (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
14. Remove the two screws that secure the Housing Right (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
15. Lift the Housing Right (A) to release the two hooks on the front side of the Housing Right (A), then remove the Housing Right (A).
    
    

    Assembly / 組み立て

    Insert the four tabs of the Housing Right (A) to the positioning holes on the Ink Supply Unit (B).

16. Remove the seven screws and remove the Housing Top (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZN-3C

17. Follow the steps below to unlock the carriage (CR).

    Check Point / チェックポイント

    If the carriage is already unlocked and the CR Unit (A) can move freely, as shown below, this step is not necessary.

    1. Release the FFC (A) from the three hooks.
       

    2. Rotate the gear (B) of the Ink System Unit (A) in the direction of the arrow, and move the CR Unit (C) to the left side.
       

       Caution / 注意

       When rotating the gear of the Ink System Unit, take extra care not to damage or disconnect the FFC by touching it.

18. Remove the two screws, and then remove the Head Upper Cover (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZB-3C
19. Remove the two screws, and remove the Ink Tube Joint Cover (A).
    
    
    • : C.B.P-TITE-SCREW-3x10-F.ZN-3C
20. Remove the film (A) from the hook and remove the Ink Tube Joint Cover (B).

    
    

    Assembly / 組み立て

    Set the film (B) under the rib of the Ink Tube Joint Cover (A).

21. Remove the two Bind Screw3 x 12 (w/washer).

    
    

22. Remove the Ink Supply Tube (A) by pulling it straight in the direction of the arrow.

    
    

    Check Point / チェックポイント

    Pull the end (A) of the Ink Supply Tube straight up while keeping it horizontal. To keep it horizontal, it is recommended to work by grasping the end of the Ink Supply Tube with both hands.

    Caution / 注意

    Ink may spill from the Ink Supply Tube. Prepare waste cloths or similar in advance. Never pull out the Ink Supply Tube at an angle, as ink leakage will occur if the tube is pulled out at an angle. The following illustrations show images of removing the Ink Supply Tube as seen from the front of the printer. OK A: Ink Supply Tube B: Printhead NG A: Ink Supply Tube B: Printhead

    Assembly / 組み立て

    When attaching the ink Supply Tube (A), insert the four nozzles into each of the four connection holes, and insert them all the way in.

23. Remove the three Head Screw Assy.

    

    Assembly / 組み立て

    Tighten the screws in order given below.