> >I've got an HP thinkjet printer here, model 2225P. It's a
> >battery-operated unit with a parallel interface.
> It's not parallel, it's HP-IB(HP's version of GP-IB, identical AFAIK). I
Well, technically HPIB/GPIB is a parallel interface...
But this printer is not HPIB AFAIK. From memory (and I've not designed an
GPIB device for a couple of years), the GPIB uses a 24 pin amphenol
connector, like a cut-down centronics connector, and has 8 data lines, 8
control lines (3 handshake, 5 bus management) and 8 grounds.
Now, I suppose it would have been possible to put GPIB onto a 15 pin
connector by using one ground and missing out SRQ and REN which wouldn't
be needed for a printer. I'm sure HP didn't, though - I've never seen an
HPIB port on anything other than a 24 pin amphenol connector
The 15 pin connector on this printer is labelled 'parallel interface'.
HPIB connectors are labelled HPIB...
> | http://members.tripod.com/~jrollins/index.html - Computers |
Well, that's about all I can find on this dinosaur. Much of the material is dated 1984. Time to give that old toy the heave-ho, I would say. Larry