Modifying The Device List - Epson 20 User Manual

Once you confirm the DEVICE LIST, you can test only those items.
If you decide later that you need to add a device, you must return to
the OPERATION MENU and re-select System diagnostics.

Modifying the DEVICE LIST

If an installed device is missing from the DEVICE LIST, it is
important that you add it to the list and test it carefully. In response
to this prompt:
Is the DEVICE LIST correct (Y/N)?
press followed by
N
Modify DEVICE LIST
l - Add devices
Delete devices
2 -
0 - Exit
Enter selection number:
You see a new menu:
Enter.
Performing
System Diagnostics C-3