If your wireless network does not use encryption (WEP), click Next.
If your network uses WEP, select Enable Data Encryption and provide WEP key information. The key you enter must identically match the one on your network.
If you do not know the WEP key, see the person who configured your network or the documentation for your Wireless Access Point (WAP).
Enter the WEP key for your network. You must enter the WEP key exactly as it exists on the network. Do not use this screen to create a new WEP key.
If you click Next and this screen reappears, an invalid WEP key has been entered. Re-enter the WEP key exactly as it exists on the network.
Your network may have more than one WEP key. If so, you must use the printer's embedded Web server (EWS) to configure the printer's wireless settings. Click Cancel, then see your printer's documentation for EWS information. After configuring the wireless settings, re-run the installation wizard.