Modern motherboards often lack legacy parallel ports.
If the printer doesn't respond, your USB-to-Parallel cable might be assigned to or USB003 . Right-click the Epson LQ-850 icon in Devices and Printers . Select Printer Properties . Go to the Ports tab. Epson Lq 850 Driver For Windows 7 64 Bit
✅ : Install Epson LQ-870 driver (built into Windows 7 64-bit). It provides the best balance of compatibility, graphics support, and ease of setup. Modern motherboards often lack legacy parallel ports
Windows 7 often includes a "built-in" driver for the LQ Series. You can access this by going to Devices and Printers Add a Printer and selecting as the manufacturer. Windows Update: If the LQ-850 is not in the initial list, clicking the Windows Update Select Printer Properties
and connect it to your computer using a USB-to-Parallel adapter or a direct parallel cable if your PC has a port.