Zebra printers, and other printers, were the bane of my existence at my old job. IT didn't support printers, it was outsourced, so all the non-standard printers were always causing issues because there was no information sharing. I never understood why they didn't just create a small group to handle it.
One time we put in an comprehensive asset management system. It had a SMTP function where it would query devices on the network for their information.
Apparently some of the printers took those messages as input commands and made all sorts of weird adjustments. Still not sure if that was the result of poor programming, or just a mix of outdated printers and newer SMTP messages (or somebody did something stupid, like re-purposing a set of commands)