The MMC command does not always cut



I am having trouble printing with ZPL code. And I hope somebody can help me with it.

I have set up my ZPL code to print and cut the label.









The MNM command should cut, but with 10% of our labels when send the commands, the zebra printer, print the label but not cut.

We have the Zebra KR403.



I hope any of you can help me!

Thanks in advance.