I actually connected one of these a couple days ago on Win 7 with SambaPOS V4.
In Windows Printers, I installed it as a Generic / Text Only Printer connected to Port LPT1. This is a “driver” built in to Windows, since I could not find a “real” driver for the printer. Fired Test Page and it worked.
In SambaPOS I first thought it would be a Port Printer and tried LPT as the Port, but it seems it only accepts COM ports.
So instead I set it to Windows Printer, and manually entered the name of the Printer in the Printer / Share Name field.