Springhot -
I'm sorry to hear about the issue that you're experiencing and I'll be happy to offer any assistance that I can. Brother laser printers have been to known to have some difficulty printing on plastic film services in certain scenarios. I know you mentioned trying different printer settings, but there are a few specific recommendations that I can make that should allow for the best possible results.
For "Media Type" please try using the Label, Glossy Paper, or Thicker Paper settings.
For "Print Quality" please try the above Media Type settings with the Normal quality first, and then the Fine quality setting if you're still experiencing issues.
Most Brother laser printers also have a setting called "Improve Toner Fixing", but it's usually tucked away and difficult to find. Try looking in the Advanced tab of your printer settings, and then clicking on the "Other Print Options" button. For most printer models it should be located under the "Improve Print Output" section of the Other Print Options screen.
If you need some additional label sheets for testing purposes, please visit the link below to request free sample sheets:
https://www.onlinelabels.../SamplesSelectItems.aspxIf for any reason you find that you are unable to use the sheets after trying the troubleshooting steps listed above, you can return any unused sheets for a refund. Details regarding our return policy can be found at the link below:
https://www.onlinelabels.com/return.htmI hope this helps. If you need any additional information please just let us know.