Windows XP Computer Can’t Find Network Printer

Hello,

We run a small network for our small business. We have an HP 5200 printer and operate it by using USB to plug it into an Apple Time capsule.

Currently our 5 mac computers running OSX can pick up the printer and print perfectly. However, we have 2 PC’s running Windows XP and they can’t seem to find the printer at all.

What might be causing this and how can I fix it?

THanks.