- Remove the ADF. (ADF Unit)
 - Remove the right rear cover. (Right Rear Cover)
 - Remove the upper left cover. (Upper Left Cover)
 - Remove the front right cover [A].
 Remove the grounding plate [A].
Disconnect the harnesses and FFC from the scanner unit.
When lifting the scanner unit, move the harnesses out of the frame so that they do not interfere.
- When disconnecting or connecting the FFC, push the lock button to unlock it as shown below.
 - If the FFC is not connected correctly, SC101 may occur.
 
- When disconnecting or connecting the FFC, push the lock button to unlock it as shown below.
 - Remove the scanner unit [A].