You can
manually connect the scanner to a Wi-Fi network by entering the
network names (SSIDs) and passwords for your wireless network
router and scanner
(ES-500W/ES-500WR).
You must have a computer with a wireless adapter to set up the
connection. Also make sure you have installed the scanner software
as described on the scanner
Start Here sheet.
Note: For best
results, re-install your scanner software and follow the on-screen
instructions to connect to a network.