Hello charles platt,
I see no one has responded to this post yet. So, at this point I would recommend contacting your local Xerox Support Department to speak with a Product Specialist for more assistance. Please call 1-800-821-2797 or 1-800-835-6100.
Tried downloading 32-bit and 64-bit drivers for Win10 with Phaser 5550 but they don't work. "Cannot find printer" probably because I am using it on a USB connection. Any ideas?