If more than one label comes out, you have an issue with either your printer or your labels - Hardware issues

If only one label comes out, there is an issue with the information you are sending to the printer - Software / driver issues

A dirty sensor: Since label writer printers are thermal printers, they rely on sensors to know where to print. If the sensors are dirty, they won’t be able to read where the label ends. To fix this, use cleaning cards.

Dirty cables, connectors, spools or rollers: Basically, there’s not a ton that can go wrong with your printer. Dirt, pieces of labels or any other buildup is oftentimes the culprit. If you’ve cleaned the sensor and are still having issues, take out the different components and clean them thoroughly using lint-free cloth, Isopropyl alcohol, diluted dish washing detergent, or diluted glass cleaner without ammonia.

The first thing you should check is that the labels are loaded properly on the spindle and that it is firmly together and in place

Labels are upside down: Since the printer relies on the sensor to read the end of the label, if your label is upside down, it may “print” more than one label

Check that the roll is all the way to the left so that the sensor can register the eyelet correctly

Confirm that the lid of the printer is closed

You’re using bad labels. If the labels are manufactured incorrectly, the sensor won’t know when a new label begins

Margins and print settings are incorrect. If you have configured your print settings incorrectly (e.g. input the wrong size or incorrect margins) then your printer may skip labels. Adjust the size to be smaller, double-check your margins and then test print.

You installed the wrong driver. If you installed the wrong driver, the print information could be skewed, causing the printer to print blank labels erratically.

Uninstall and reinstall and then reconnect your printer, software and drivers.