9 Nov
2016
9 Nov
'16
8:41 p.m.
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