[GreenKeys] Paper (was Ribbons)

[Dave Wade]

So you can get NCR paper, so you could use that on Ribbon-less tty and read
the second copy.....

Dave
G4UGM
On 11 Dec 2014 08:38, "Sheldon Daitch" <SDAITCH at bbg.gov> wrote:

> Yep,  absolutely.
>
> Essentially, a derivation of the no-carbon-required paper stock.
>
> Sheldon
>
> -----Original Message-----
> From: Jim Haynes [mailto:jhhaynes at earthlink.net]
> Sent: Wednesday, December 10, 2014 11:35 PM
> To: Sheldon Daitch
> Cc: Larry; greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] Paper (was Ribbons)
>
>
> Now the Extel machines sometimes used ribbons and sometimes printed on
> special paper made by 3M that turned black when struck.  I assume that was
> a lot more expensive than plain paper, so I don't know why anyone would
> choose that kind of paper unless the printing volume was small.
>
> It was described to me that it was like microscopic white eggs containing
> black ink that were on the surface of the paper, so that impact broke the
> eggs and released the black ink.  So far as I have been able to learn the
> special paper is no longer available, so an Extel printer without the
> ribbon feature is practically useless today.
>
> jhhaynes at earthlink dot net
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