These printers are notorious for losing power from with computers when the computer goes to sleep. As a result, the printer can lose connection with the printer and stop printing barcode labels on demand.

If there are no blinking lights on the printer, try these steps in order.

Round 1:

  1. Turn the printer off and back on.  This often re-establish the lost connection.
  2. Open the Cohub Desktop App, select "None" in the dropdown for barcode label printer, hit the "refresh devices" button, then re-select the Zebra.

Round 2: 

  1. Remove the USB cable from the back of the Zebra and from the port on the computer.
  2. Follow steps in Round 1 again.

Round 3:

  1. Open your computer's printer settings and remove the printer from the list of printers on your computer.
  2. Re-install the printer, and make sure you use the "Zebra EPL2" driver.

Round 4:

Print a test page to the printer.  Here are instructions for Mac:
If the test print fails, there is a problem with the printer setup on the computer.  If it passes, try to print barcodes again from Cohub.

If you've tried all of these steps and it still doesn't work -- please contact Cohub and we will do our best to help!

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