So niimbot label printers store a table of 20 of the last rolls it has seen, If you block the writing of the NFC tag it updates the internal table with the usage count anyway... It also sets the printing density to -3 if it can't see the NFC tag when a print job is sent.
Reversing a label printer.... cause fuck your DRM label rolls thats why... Anyway... I need to change the code to my suitcase. (Granted, they do encrypt data on the tag too... but still...)