| Problem | Likely Cause | Solution | |---------|--------------|----------| | | USB cable or port failure | Try different USB port or cable. Avoid USB 3.0 (blue) ports; use USB 2.0. | | Printer shows offline | Incorrect port assignment | Go to Printer Properties > Ports > Select “USB001” or “Virtual USB port.” | | Labels print garbage/random characters | Wrong driver language (ZPL vs. EPL vs. ESC/P) | Select “Net Computer NC120 (EPL)” or “(ZPL)” variant in driver settings. | | Installation freezes at 99% | Conflicting printer service | Restart Print Spooler: services.msc > Print Spooler > Restart. | | Driver installs but won’t print | Corrupted driver cache | Delete all NC120 entries from Devices and Printers, reboot, reinstall. |
Right-click the installer and select Run as Administrator . net computer nc120 driver windows 7
The host server does all the heavy lifting. | Problem | Likely Cause | Solution |
Click and point it to the .inf file in your driver folder. EPL vs