What or behavior are you experiencing? Are you running Windows 7 32-bit or 64-bit ?
https://www.mediatek.com/products/broadband-wifi/rt3070 (look for “Support” → “Downloads”) nextep ne510 driver windows 7 link
Check the resource or download sections of the specific point-of-sale vendor where the machine was purchased. What or behavior are you experiencing
Thermal Printers: Installation and Setup with USB in Windows 7 nextep ne510 driver windows 7 link
Select the correct interface port. If connected via USB, select or USB002 . Click Install to finalize the process. Manual Installation via Windows Device Manager