If it is a Wireless printer then it shouldn't ba a problem. Make sure it's Wi-Fi and not Bluetooth. HP has a range wireless printers that advertises as wireless but does not include the wireless dongle.
Anywho, are you using Windows to manage your wireless connections or the Dell Wireless application?
Try both and see witch gives better results.
What router is this? 802.11 b or g or n or combination?
Find out what your laptop supports and change the router to those settings.
Hope this helps
