Re: Similar scenario with a line printer
We had a similar problem with a copier that was located in a "lifestyle" office (located in a seaside town famous for wineries and surf, a couple of hours drive from head office. This allowed the directors the ability to have a long weekend at their beach "shack" and still do some work. Obviously this was in the days before ubiquitous mobile phones, wireless data services and remote access)
The copier was set up by the local copier company originally ("local" being a 30 minute highway drive away) and we had not been on site to inspect. It constantly jammed and it was almost every second day that the support company had to visit ( and would change an hour travel time each time).
When we did come in for other work ( rewiring the data switch ) we could tell what the problem was instantly. The printer was located directly below the outlet of a cassette air conditioner, and was constantly being blasted with cool damp air. This resulted in the paper (stored in a cupboard next to the printer) absorbing moisture and curling when exposed to the heated interior of the printer.
We moved the printer and paper to the other side of the room and it fixed the issue.
Mind you it paid for us to have a nice weekend in Busselton :)