[GreenKeys] model 40 update - no suprise on the type carrier aka belt

[Pete Lancashire]

When Tektronix was doing R&D in inkjet technology, one of the small labs
in what was TekLabs had a blue (or green can't remember) line across
the ceiling and one wall.

-pete

On Wed, Jun 1, 2011 at 8:42 AM, Jim Haynes <jhhaynes at earthlink.net> wrote:
> On Wed, 1 Jun 2011, Gerry Block wrote:
>
>> Jim I've never seen the inktronic but from what I've read over the years I
>> thought they were designed to spray paint everything but the paper.
>>
>
> I first saw the Inktronic principle demonstrated in 1959, printing on a
> strip of paper tape.  If there had been a market for a high speed tape
> strip printer it might have been a real winner.  The problems got a lot
> worse when it was made into a page printer, with 40 nozzles to print
> 80 columns.  As it came from the factory the print was readable across
> the page; but things went downhill from there.  I guess the main problem
> was paper dust getting attracted to the electrodes, which were in the
> open air.  It was very hard to clean the electrodes without bending
> them, which caused distortion of the printing.    There was a problem
> getting ink droplets of uniform size to come out of the nozzles.
> All in all, a clever idea but not very practical.
>