- Remove the DF unit from the machine. (Document Feeder)
- Remove the rear cover. (Rear Cover - MF Model)
- Remove the controller box cover [A].
- Grip both ends of the rear top cover [A], and lift it off its hinges.
- Open the rear top cover [A], and then remove it by lifting it up.
- Remove the screw holding the FFC on the scanner, and then release the harness.
- Release the entire harness on the main unit.
Remove the two screws on the right of the scanner unit [A].
- Remove the screw on the left of the scanner unit.
- Slide the scanner unit [A] to the right and then remove it.
- When attaching the scanner unit, first attach the screws [A] removed in Step 8, then attach the screw [B] removed in Step 9.