[GreenKeys] [External] Re: modified teleprinter

[Gerry Block]

Time travel

Sent from my iPhone

> On Apr 4, 2022, at 11:51 AM, "til128 at juno.com" <til128 at juno.com> wrote:
> 
> 
> And the brochure for the tiinkJet:
>  
>  
> 
> 
> ---------- Original Message ----------
> From: Gerry Block <gblock at sbcglobal.net>
> To: harold at w6iwi.org
> Cc: Green Keys <greenkeys at mailman.qth.net>
> Subject: Re: [GreenKeys] [External] Re: modified teleprinter
> Date: Mon, 4 Apr 2022 09:48:36 -0700
> 
> Harold you are of course describing the hp think jet Printer.   To simplify the initial product (which worked but barely) it used sprocket feed.
> If you bought any hp test equipment with hpib you got a free Think jet printer.  That’s how it all got started.  
> Gerry
> AD6MC
> 
> Sent from my iPhone
> 
> > On Apr 4, 2022, at 9:15 AM, Harold Hallikainen via GreenKeys <greenkeys at mailman.qth.net> wrote:
> > 
> > 
> > 
> >> On Mon, April 4, 2022 4:11 am, Nick England wrote:
> >> Teletype’s Inktronic used electrostatic deflection. 40 nozzles spraying
> >> hot
> >> liquid ink and 10kv……what could possibly go wrong?
> >> https://www.navy-radio.com/tty/ugr14.htm
> >> 
> > 
> > With an almost 12 kV differential, it must be fun to reach in there to
> > clear paper jams.
> > 
> > Truly amazing technology. I'm still impressed with the heater boiling ink
> > inkjet. It's amazing to me that it goes as fast as it does. Really clever
> > design with very few moving parts. Probably the most complicated part is
> > the paper feed. As I mentioned previously, I used to have a Multilith
> > model 80 and a 1250 offset press. The 80 used a rubber roller to TRY to
> > feed one sheet of paper into the press at a time. It often fed several.
> > Most of the time, I ended up feeding it by hand. The 1250 had a vacuum
> > pickup that would very nicely pick up one sheet of paper and feed it into
> > the press. My HP inkjet does a nice job of feeding just one piece of paper
> > through at a time. And, it can even flip the paper around to print on the
> > other side. Of course, a tractor feed inkjet would be even simpler.
> > Anyway, I think that's the most complicated part of the printer, though
> > I'm sure the details of the print head are amazingly complex and cost a
> > lot to develop.
> > 
> > Harold
> > https://w6iwi.org
> > 
> > 
> > -- 
> > https://w6iwi.org
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> > 
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> 
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
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> Message delivered to til128 at juno.com
> <0011thinkjetbrochure.pdf>
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> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
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