You can find the PRP-085 Driver Package (PRP-08x series) which is compatible with Windows 10.
Thermal printers typically require a specific installation sequence to avoid port conflicts. Printer Driver of PRP-085 | FAMETECH INC - tysso prp085iiit driver for windows 10 64 bit hot
If your unit is 3nStar branded, the 3nStar Drivers and Downloads page hosts specific utilities for their printer line. You can find the PRP-085 Driver Package (PRP-08x