Help! Hp latex 64 cutter not cutting on contour lines.

#1 This might sound like I’m being condescending but it’s definitely not meant that way.

Have you checked the rollers and gcc vinyl cutter reviews? Mine refused to lock in place to begin with and that produced the same result as what you are describing.

Lock and unlock it a couple of times and try out different placements. I’ve found that mine works best with the “outer” roller (the one on the right) set appx 1/5 of the way in.

I work with a HP Latex 64 cutter and while I was inspecting the machine to try to fix my cutting problem, I've notice there was a really small dirt on the knife so I cleaned it and reinstall it (maybe check the knife). After that, I've performed a length calibration as well as the OPOS calibration on a piece of black vinyl (page 20 user guide) and it fixed the issue. For the moment...

#13 yo! i just dropped the barcodes and all is good so far