>Were commercially available dot-matrix or daisy-wheel printers toxic or flammable? It’s not a binary but spectrum. For example military has a long list of sta

>Were commercially available dot-matrix or daisy-wheel printers toxic or flammable? It’s not a binary but spectrum. For example military has a long list of standards for wires. The ships/tanks/planes use different wiring than your house does. That doesn’t mean our wires are toxic and flammable but they are probably more toxic/flammable than the application calls for. And here is the problem: there was no off the shelf printer that met their exact requirements on paper. It’s possible some of the printers were similar quality but they were not certified to same standard. So NASA would call a printer company and ask “does your printer self extinguish? What about in 100% oxygen? What about inrush current? Does the motor stall and what are the protections?”. The printer company would not want to spend the time/energy on that vs what nasa would be willing to pay for 5-10 printers.