Yes, I know what a thermal breaker is, and that the switch itself cannot be affected by firmware, so he is correct in that statement, but that is so obvious tha

Yes, I know what a thermal breaker is, and that the switch itself cannot be affected by firmware, so he is correct in that statement, but that is so obvious that doesn't really need mentioning. What I mean is that the protection that is intended by the thermal switch might be cleverly defeated. The thermal switch is usually mounted on the (metal frame) chassis, not always close to the parts that would catch fire. What I am suggesting is that one might find a way to cause a paper jam, and then get the paper to ignite before the chassis were heated enough to cause the thermal switch to open. It might even be dependent upon a specific model(s). I doubt it is possible to prevent without very careful placement of thermal switch(es). The kind of placement that would defy efficient manufacturing ideals, and possibly even user-safety-inspired design practices. TBH, I don't think it is likely to be a reliable ignition method. Besides, Randall Hyde has shown us the most satisfying way to get rid of printers (buckshot).