If all else fails, consider upgrading to Windows 10 or Windows 11 IoT LTSC – but for those who must keep Windows 7, the steps above will restore your TZ30M01 to full functionality.
If you are still experiencing issues, it may be necessary to check the POS software settings to ensure the correct COM/LPT or USB port is mapped to the printer. citizen tz30m01 driver windows 7 hot