Disclaimer: This site is for informational purposes. Always download drivers from the manufacturer's official website.
Deli sometimes hosts drivers on Gitee (China’s GitHub alternative). A known working path is: https://gitee.com/deli-printing/driver-dl581pw/releases Look for the latest .exe or .zip file named something like DL581PW_Driver_v2.1.0.zip . deli dl581pw driver download link
Connect the USB cable from the printer to your PC when prompted by the installer software. Disclaimer: This site is for informational purposes
Ensure the USB cable is firmly plugged in. Try a different USB port on your computer. deli dl581pw driver download link