[GreenKeys] Terminet 8000 - magnetic printing

[Harold Hallikainen]

> Then there was a one of a kind printer made for Livermore Lab by
> some company.  I don't remember now how fast it was, but the part
> I remember was that there was a machine to fold the paper as it came
> out of the printer, and if that machile failed it filled the whole
> room with paper in no time at all.
>
> Well here I see a web page - line printer doing 30,000 lines per minute.
> http://www.computer-history.info/Page4.dir/pages/Radiation.Printer.dir/index.html
>

Great story! All sorts of interesting printing technology. Recently
someone posted info about a printer that used a helix and an inked impact
hammer (or something like that) that was pretty much a paper tape fax
machine. I thought that was pretty clever!

In the 1970s I remember seeing IBM Selectric typewriters that could be
driven by a computer. Then, of course, there were the Teletype printers.
The first dot matrix printer I saw was by Extel. It was used by wire
services to replace the Teletypes. The first ink jet printer I saw was an
Oliveti. It had one inkjet that would fly back and forth across the paper.
Later I got an HP monochrome ink jet printer. Also had a Daisy Wheel
printer. Still have a Houston Instruments plotter in the garage somewhere.

The electosensitive paper for the Radiation printer sounds expensive. I
remember seeing that sort of paper used in a recording fathometer, but it
had a spinning stylus instead of a bunch of them. The ultrasonic pulse
would be sent when the stylus started down at the top of the paper strip.
Echoes would cause the stylus to burn through the white layer to expose
the black layer below. You'd end up with a graph showing the depth of the
ocean as you moved along.

Printing is amazing technolgy!

Harold





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