Check that the power of the printer is turned on and check that the PC and the printed are properly connected using the USB cable. If it still does not work, click the Windows key, search for 'Device Manager', and check if there is 'USB Printing Support' in 'Universal Serial Bus Controller'.
If you do not have 'USB printing support', please connect to another USB. If it does not work even though the connection is normal, please check if you installed the nemonic driver. If the problem still occurs, delete the existing nemonic program and driver and reinstall it.
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