AT&T Wireless How to connect windows mobile with printer via Wireless connection?

I recently buy a windows phone, I want to connect this pone with wireless printer but the printer not be able to found this windows phone device.Although i read many post to fix this issue but can't find any solution. Can anyone explain the actual reason and how to fix this problem? I think this is the issue of my printer's drivers and hence I update all my printer drivers but not be able to resolve this problem yet.