[GreenKeys] [Bulk] Re: Telephoto machines?

[Chris Elmquist]

On Monday (06/29/2015 at 06:35PM +0000), Jones, Douglas W wrote:
> On Jun 29, 2015, at 1:09 PM, Chris Elmquist wrote:
> 
> > Was it electrostatic paper (and process) then or what made the paper
> > special and generated the smoke?
> 
> Sounds like spark-paper to me.
> 
> See the Wikipedia entry for "spark printing"
> -- https://en.wikipedia.org/wiki/Spark_printing
> 
> There were earlier forms of spark recording that predate the
> form discussed in the Wikipedia page.  Fisher Scientific
> sells 5/8" (1.6 cm) spark paper tape in 100 meter rolls.
> You can also get sparkers designed to record on spark paper.
> I have no idea where to get wider spark paper, but
> obviously, it is still being made.

ah! right.  I see the Sinclair ZX printer there and now I remember that
Radio Shack offered such a printer for their early TRS-80 computers too.

It was silver colored paper and heavy weight similar to the thermal
paper I am familiar with for my Texas Instruments Silent-700 machines.

I'm guessing that their statement "Spark printers were originally
introduced in the late 1960s" is perhaps slightly off.

-- 
Chris Elmquist NØJCF