I'm uncertain if adjusting the material type setting on your laser printer will impact the Cricut's ability to read the registration marks, but for the white weatherproof polyester label material I typically use a photo or glossy setting. The label setting on most laser printers should work fine with this material type too, though.
The most important printer setting to verify is making sure that the page is printing at actual size. The paper size should be set to Letter and any scaling options such as "Fit to Page" or "Shrink to Fit" should be unselected. This will ensure that the registration mark is being printed in the proper location to be read by the Cricut.
Cricut lists some common troubleshooting suggestions for their "Print Then Cut" functionality:
https://help.cricut.com/...ead-the-cut-sensor-marksRunning through this list to ensure you're meeting their recommendations for print then cut is a good starting point.
One additional troubleshooting technique that isn't listed above is applying standard, matte-finish scotch tape to the registration marks before cutting. Cricut machines can have trouble reading registration marks on glossy materials, and this scotch tape trick can help reduce the gloss around the registration marks. We've found that customers don't usually have to resort to using the scotch tape trick with our weatherproof polyester material, as the material doesn't have a high-gloss finish. There is a slight sheen to the finish though, so it's possible that this trick could help if you're still running into trouble. I'd also make sure that you don't have any direct sources of light directed at the Cricut machine, and that the cut sensor light is clean.
If you need any additional assistance troubleshooting please contact our customer service team directly. You can reach them by dialing 1-888-575-2235, or by submitting a support ticket at the link below
https://secure.onlinelab...port/SupportRequest.aspx