Hi BenEckenroed,
You can turn off the Bonjour service of the printer which should remove the airprint capability, or you can change the names of the two printers so that you can differentiate them.
From a device connected to the same network as your printer, navigate to the embedded web server (EWS) of the printer (by typing in the IP address of the printer into a browser window). Once you have accessed the EWS, select the Network tab, then on the left menu bar, select Bonjour. This will bring up a window giving you your various Bonjour service settings. Disabling the service should remove your printer from being seen on the network (in terms of AirPrint - it will still be on the network). OR you can change the Bonjour Service Name. By changing this, the printer will show up with a different name on the user's device when they attempt to print.
Unfortunately, the iteration of AirPrint that Apple has partnered with us to use has no security settings, so utilizing a pin number is not an option but I hope one of the top two options helps you in your matter.
M. Moss
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