Printing problem on vinyl

When I print on vinyl the result looks like the example I have attached. What may cause this problem?

Hello @henrik6741 The default printing might be caused by:

• OP PH is not firing. To replace, if still fails, contact your HP support
• The media is not certified. Try to print with a certified media (Check on the Media Solution Locator you can filter by printer and type of media to get a list of certified medias and their profiles)and see if the behavior persists.
• The media is certified, but out of optimal temperature to print. Confirm that the roll is placed in the printing room for 24 hours before printing.