Epson Stylus NX420 - Manual (Page 9)

Installing for the First Time 9
6. If you see a screen like the following, enter your security key or passphrase,
then click Next .
Note:
If your security key contains uppercase or lowercase letters, enter them correctly.
7. Wait while EpsonNet Setup configures your printer for the network.
8. Follow the instructions on the screen to remove the USB cable from the
printer and your computer.
9. When you see the Installation Complete screen, print a test page, then click
Finish .