- Remove the right cover. (Right Cover (Printer))
Remove the controller box [A].
Slide the controller board [A] with the bracket to the right.
When attaching the controller board, fasten the screws in the following order.
Release the three hooks, and then remove the controller board [A].
Remove the NVRAM [A] and the two guide rails [B] from the old controller board, and then install them on the new controller board.
Install the NVRAM so that the indentation on the NVRAM face the indentation marks on the controller board. If they are not installed correctly, the controller board may be damaged.
Make sure that the NVRAM [A] is correctly installed on the controller board by comparing with the photo above.
If a message tells you that you need an SD card to restore settings after the NVRAM replacement, create an “SD card for restoration”.