12 Oct
2015
12 Oct
'15
11:42 p.m.
On Mon, Oct 12, 2015 at 11:32 PM, Nigel Williams
<nw at retrocomputingtasmania.com> wrote:
Has anyone ever seen one? I had an idea it used a
silvered-paper and
burned it off? or am I mis-remembering.
I used one in the early 1980s but I never had to repair it. It was,
as Tony and others have mentioned, electrolytic, not thermal. I don't
know the details of the process either, but I remember the wet wick
and having to wait for the paper to dry. It was a PITA, but being
able to do screen shots was amazing. The only other terminal I worked
with that could do that was a Tektronix storage scope terminal (4010
or 4014, IIRC). The Tek printer wasn't built-in, but it did take a
scan of the live screen, so that was similar. The paper was
silver-grey and I remember it coming out wet too. Everything else I
worked with was either thermal or dot-matrix impact, and could only
capture text as it arrived at the terminal, not a screen image.
-ethan