OLD HP 7220C ROM

On Wednesday, April 15, 1998 at 5:00:00 PM UTC+10, Yves Morrissette wrote:
Hi! I'm looking for HP 7220 ROM chips. There was a kit available from
HP, but now it's so old they don't even know what is it. It converts the
HP pen plotter model 7221C to a 7220C.

The difference is that the 7221C is not an HPGL plotter and the 7220
is. The 7221C is a "weird compacted binary" language plotter. If any of
you have information about this old language, have it forwarded to me. I
would be glad to even write the converter program.

Thanks a million.
--
================================================== ===============
"Never play leapfrog ! Yves Morrissette
with a unicorn" !
-Murphy ! -==(UDIC)==- Skinny Dragon
================================================== ===============

Hi Yves,
Did you mange to convert yout plotter?
I think on eof th eways to do it would be to read ROM content and write it on EPROM.
I wrote the conversion program some time ago, but ROM change is a better solution
Thanks, Bojan

On Wed, 05 Oct 2016 18:34:53 -0700, bastajcar wrote:

On Wednesday, April 15, 1998 at 5:00:00 PM UTC+10, Yves Morrissette
wrote:
Hi! I'm looking for HP 7220 ROM chips. There was a kit available from
HP, but now it's so old they don't even know what is it. It converts
the HP pen plotter model 7221C to a 7220C.

The difference is that the 7221C is not an HPGL plotter and the
7220
is. The 7221C is a "weird compacted binary" language plotter. If any of
you have information about this old language, have it forwarded to me.
I would be glad to even write the converter program.

Thanks a million.
--
================================================== ===============
"Never play leapfrog ! Yves Morrissette
with a unicorn" !
-Murphy ! -==(UDIC)==- Skinny Dragon
================================================== ===============

Hi Yves,
Did you mange to convert yout plotter?
I think on eof th eways to do it would be to read ROM content and write
it on EPROM.
I wrote the conversion program some time ago, but ROM change is a better
solution Thanks, Bojan

The printer has probably crumbled to dust in the 18 years since the
question was asked.