I have a Canon PIXMA MG5220 that I have hooked up to run wireless that has stopped working all of the sudden.  My computer which is a Dell N1710 recognizes the printer and indicates that it is in a ready status but will no longer printer.  I can ping the printer with no errors, I've taken the fire wall and tried to print and nothing, I've checked all ip and network settings and everything is fine, I've recycled everything and still nothing.  All drivers are up to date.  I've even added and removed the printer in still nothing.

This DELL is running Windows 7/ 64-bit.  I can print wirelessly from my other Dell laptop that is running vista and I can use the appropriate apps and print via my ipad and iphone.  I was on the phone with Canon's Tech Support for an hour and a half Wednesday and they couldn't see a reason why I couldn't print.

Does anyone have any suggestions or have experienced the same thing.  Thanks in advance for any assistance.