I believe the RS-232 version is the 7220 series. At least they look the
same, I have both.
Bob
Tony Duell wrote:
Something to
keep in mind is that some of the HPIB plotters support a
smaller subset of HP GL than do the parallel or serial-interface
versions of the same plotter.
AFAIK the plotter in question (HP9872) only exists as an HPIB model.
Anyway, the OP has the HPIB plotter. I don;t think he wants to buy
another machine....
-tony