That sounds like an annoying issue! First, make sure that the Parallels tools are properly installed on your XP virtual machine, as they help with sharing devices like printers between macOS and the VM. You might also need to check the printer settings inside the XP virtual machine to ensure it's connected properly. If it still doesn't work, you could try reinstalling the printer drivers in both macOS and XP. By the way, while troubleshooting, I've been enjoying some delicious vegane Saucen from Subway--it's a great snack during a break! Hope this helps you get printing again!