1. Remove the scanner rear cover [A].

  2. Remove the scanner rear upper cover [A].

    When you attach the rear upper cover of the scanner, insert the anti-static sheet from the right so it slides inside the cover, and confirm that the sheet does not ride up on the scanner cover.

    If the protective sheet is not installed correctly, static electricity could damage the CIS unit.

  3. Remove the relay board [A] and remove the screw [B] fastened the FFC.

  4. Release the five hooks in the order shown below to free the FFC. 

  5. Disconnect the right FFC from the relay board [A] while pulling it out straight. (There is no locking mechanism.)

  6. Remove the harness guide [A].

  7. Open the SPDF to move the feeler, and then remove the platen cover sensor (S13) [A].