The first cause of this problem is an incorrect setting in the printer driver. To solve this problem, please proceed as follows: Open the start menu and select "Devices and Printers", "Printers" or "Printers and Faxes". Right click on the Zebra Eltron printer icon and choose Printing Preferences. To do this: turn the printer off, hold the pause button, and then turn the printer back on. Press and hold the pause button until all lights flash once. This will load 9999 test print labels into the printer. Let go of the pause and you are ready to troubleshoot. https://www.cpprinter.com/zebra-printer-not-printing-anything/