My science club kids take apart printers - among other things. We use some of the steppers etc and would like very much to recycle the plastic from which the printers are made. I don't seem to find typical "following arrows" with plastic type numbers. Does anyone know what kinds of plastic these printers - HP 6xx, 7xx, 8xx etc, Epson, old OKI dotmatrix etc. Thanks, Chuckby chuckmerja - Polymer Working Group