> > Tony, good advice but probably more work than I'm inclined to put in.
What I have suggested would take about 10 minutes tops. It has probably taken me longer to type this message than it would take me to figure that out. > As you said there were many interfaces with different standards - > different polarities and timing - and either way it's quite likely Based on Brent's schematic and the date I wonder if it is similar to the HP9866 interface. The connector is wrong, but the signals (7 data lines, strobe, ready, paper out) are right. And it is a machine that was around at the time. Possibly this was to get letter quality output that didn't fade from some machine designed to use that printer. > this will never work with a standard modern parallel port without > building some converter, after first finding out what has to be > converted and designing it! Probably just a matter of inverting some of the signal lines (i.e. '04s) -tony
