Hi monap,
Will you be using this printer primarily to print from an iPad or a Macbook Pro.
With an iPad, once you connect wirelessly to the same wireless router which your printer is connected too, you should be able to print from the iPad to the printer.
To connect your printer to the linksys:
1. From your iPad, connect wireless to the printer's network from the Settings>Wireless menu in the iPad (printer network name should be similar to HP-Setup-xx-Deskjet 3050A J611). If you dont see the printer network name, restore network defaults from printer front panel in the wireless settings menu.
2. After successfully connecting to the printer, open Safari and type in 192.168.223.1 in the addressbar and press enter.
-Click on Wireless Setup Wizard
3. Select your network name and leave the password blank since you did not set one.
4. Press Next or Apply to connect the printer to the router.
Let me know how it goes..