About a year ago we had a machine in the fleet start printing out random charecters from one machine in a fleet of 400. Then a couple days later another machine states away did the same thing. Then two days after that the whole fleet started printing around 3:20am . All the paper was depleted. After that it stopped.
That was a year ago and it seems to be starting again . Is there something I can do at the machine level to stop these rogue print jobs? I have changed the admin username and password but didnt know if changing the smnp settings would help.