Teleprint 390

[vrs]

From: "Stefan" <birs23 at zeelandnet.nl>
> I just hooked up my Teleprint 390 to my laptop and it works like a
> charm, almost 100%. I can type on my laptop and the output appears on
> both the papertape as typed. And what I type on the Teleprint appears
> on my laptop but what it doesn't do is when I feed it a papertape
> output it on the laptop (only parts). It does output it correctly on
> the Teleprint itself. Any idea's what might be wrong here ?
> I am not a real technical person but willing to give anything a try :-)

I think it is likely that your 390 is generating two stop bits.  If your
laptop
isn't expecting that, it would likely construe the second stop bit as a
start
bit and begin looking for the next character.  If none is forthcoming (as
when
you are typing, but not too fast), things would be sort of OK.  If another
character is sent immediately, it won't be framed correctly (the proper
start
bit would likely be construed as data).  The fix for this would require you
to
set your laptop hardware for two stop bits.  (I have no idea if that is
possible,
or how to do it.)

If you get the data correctly from the reader in bursts, that is puzzling,
and suggests that something else/additional may be going on.

    Vince