17 Feb
2025
17 Feb
'25
9:03 a.m.
> On Feb 16, 2025, at 7:38 PM, Van Snyder via cctalk
<cctalk(a)classiccmp.org> wrote:
>
> .... It also
> had a thermal printer called "teledotis." It was very fast, so some
> called it the Whippet. It electrostatically deposited soot onto special
> paper, which was then fused by a heat roller.
Teledeltos paper had a silver layer over a carbon layer, and
a spark blew off the silver to expose the black carbon. (I
think that's how it worked, I haven't seen this stuff in
decades!) It was used in early machines for sending weather
facsimile maps, for instance.
Jon