Printer not accessable from other PC on Home Group network

We have 2 computers which is on the same Home Group network in Windows 7. I have a printer (HP Deskjet 3050) but my wife can't access it from her PC.

Any ideas?

Have you had a look at these Microsoft vids here razz?

http://windows.microsoft.com/en-US/windows7/Access-files-and-printers-on-other-homegroup-computers

It's not actually a bad help page (for microsoft!)

TY Hazel, you're right it's not a bad help page for Microsoft. Unfortunately I had tried all the things they mention and still no printer for my wife :-(

If we can't fix the problem then we'll work around it by me going (via HomeGroup) into her PC and grabbing the file she wants printed and then proceed to print it out.