- Remove the DF rear cover. (DF Rear Cover)
 - Disconnect the harnesses and ground wires.
Use a self-tapping screw for the screw of the ground wire on the relay board.

 - Disconnect the FFCs and harness for the relay board.

 - Remove the harness box [A].

 - Release the FFC with ferrite core [A] from the harness guide.

 - Remove the two screws.

 - Slide the rear left cover [A] towards you while pressing strongly with the thumb at the part marked with the red dotted circle.

 - Slide the rear right cover [A] towards you (front) while pressing strongly with the thumb at the part marked with the red dotted circle. This cover slides only a little as shown in the photo below.

 - Remove the screw of the scanner rear cover.

 - Remove the scanner rear cover [A].

 - Remove the two stepped screws.

 - Remove the DF unit from the machine.

 

- When removing the DF unit, do not touch the sheet-through glass, mylar, and rollers (marked with red squares).

 - Decals [A] [B] are not attached to the DF that you order for replacement. Order the decals also when replacing the DF.
