- While pressing the DADF release bar [A] on the back of the scanner unit, open the DADF.
- Cover the scanner exposure glass with a mat or something to prevent it from being damaged.
- Remove the screws on the DADF rear cover.
- Remove the screw on the back of the scanner unit.
- Open the DADF cover, and then remove the DADF rear cover [A].
- There are 4 hooks on the DADF rear cover. Be sure to disengage all the hooks when you remove the cover.