On 11/09/2016 06:47 AM, dwight wrote: > It is interesting that the MX-80 was copied by several other > > printer manufactures. For a while, the term MX-80 compatible > > was an important selling feature.
The MX-80 (and FX-80) were among the least expensive of widely available dot-matrix printers that could also do graphics. Hence the wide appeal. IIRC, the MX-80 had serial (RS232) as an option with Centronics standard. The interesting thing was that the only thing the option really gave you was the EIA-to-TTL level shifting logic. I recall cobbling an adapter up using a couple of 2N2222 transistors and a 9V battery. --Chuck