I'm sorry about the issue. Are you still able to print any other thing?
When printing the label, at the print dialog window, does it show your correct printer? At the print dialog window, can you select the correct or another HP printer, then see if you can print?
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Do you have Windows XP, Vista, or 7 or 8 or 10?
Please type at the box below, then click on the Send button below to communicate with me, so I can help. Thank you,