Fix the problems, not the symptoms. I worked in a similar situation for almost 3 years. When I first started, it was the same, printers jammed, machines frozen, virus infestations, generally someone's hair was always on fire. It being a nonprofit, there really was no IT budget, but money would be available every once in awhile. I made a list of thorns in my side, and what was needed to buy when the money was available. I consolidated printers to a could of networked copy machines (which were managed and serviced by a local company, that was a bonus), spent an hour here and there getting enterprise wide virus control deployed, and prioritized freezing machines to be upgraded. By the time I had left that job there was not much work beyond routine maintenance I had to do.