I have a minor problem with a dot matrix printer, and its feeder.
It is an Epson LQ-500. It has a removable set of tractors, which
mounts on top. However, they mount on the output end. This means that
there must be paper in the tractors that is beyond the print head,
which means that about a sheet of paper must be wasted. Could someone
explain to me what is the idea behind this system?
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
> And to make matters even worse, it was a husband and wife lawyer team!
Birds of a feather, um, make that vultures, flock together...
Jack "birdbrain" Peacock
> From: Max Eskin [mailto:maxeskin@hotmail.com]
> there must be paper in the tractors that is beyond the print head,
> which means that about a sheet of paper must be wasted. Could someone
> explain to me what is the idea behind this system?
At one time nearly all tractor feed printers pulled instead of pushed.
Demand documents (i.e. tear off right above the print head) was not a
concern for most printers. Reports were printed in batches, then
separated by operators. Also, the paper was less likely to jam if you
pull it through the paper path, rather than try to push it through.
Ever see a paper jam on a 1200LPM chain printer? The operator could
spend a good 15-20 minutes clearing out bits of shredded paper.
Computer time was more expensive than the paper, no one cared if a few
pages got wasted for form feeds.
Jack peacock
On Apr 14, 11:06, Allison J Parent wrote:
> Try about 5-6 years and it was there before but you could get the offender
> tossed before that. Also When AOL opened to the net it seemed to add to
> the fray.
ISTR an article on alt.folklore.computers a year or so back, giving the name of
the lawyer who sent the first officially-recorded unsolicited email spam. IIRC
he lost his account. I can't remember the details, so it might be hard to find
(and I'm not sure of the details, but 5-6 years ago sounds about right).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
On Apr 14, 0:40, David Williams wrote:
> Subject: AT&T 6300 PSU Question
> I went to power up my AT&T 6300, which hasn't been up for about 4
> years, and noticed that the PSU fan was coming on but the drives and
> motherboard didn't seem to be getting power. I opened up the system
> and was surprised to find the power supply was corroding.
> You can see pictures of it on my web site on the AT&T 6300 page
Jason's comment about liquid sounds about right. It looks more like something
was spilt onto it, than as if something self-destructed. Anyway, it's usually
electrolytic capacitors that self-destruct in that way, and that normally
happens when there's a voltage there.
> Any ideas? Also, anyone have a spare PSU? I don't really want to go
> buy another AT&T 6300 just for this but suspect the PSU won't be easy
> to obtain otherwise.
I'd attempt a repair, or at least some further investigation.
The case looks pretty yucky but from the pictures, the physical damage might
not be that great. I'd take it apart and attack the case with a wire brush or
steel wool, and a very light touch of oil or WD40. The terminals don't look
too bad at all, a little brushing (stiff toothbrush preferred, or a brass wire
brush or fine steel wool) and a little WD40 should work wonders. Make sure you
wipe off any excess WD40, though.
Depending on how bad it is inside, it might be worth washing, but do make sure
that (1) any capacitors are discharged before you get it wet, and (2)
everything is *completely* dry before you try applying power! Again, a
toothbrush is a useful tool.
In many similar PSUs, the fan is driven from the 12V line. If that's the case
here, it implies that at least part of the circuitry is working, which is very
encouraging. Perhaps only the 5V line is dead. It's hard to suggest much more
without more information, and without seeing the inside.
If you do try anything, apart from the obvious precautions, be aware that there
are some very high voltages inside switch mode PSUs, as high as 300V. Also,
many PSUs won't operate correctly without a load on at least the 5V line; at
best, they won't regulate properly, at worst, they can be damaged.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
today at goodwill I found a Advance Micro Device AM2900 Evaluation &
Learning Kit in the it's box (very nice design on it) with one worksheet.
the unit was only $5.
Sorry about the extra public traffic (and this one too). I didn't look
at the "reply to" on Charles' message.
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ # 1714857
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
On 1998-04-12 classiccmp(a)u.washington.edu said to lisard(a)zetnet.co.uk
:I think we all would expect all the
:subscribers to this list (and the other lists as well) to conduct
:themselves in a civilized and honourable way [...]
rotflmao
On 1998-04-12 classiccmp(a)u.washington.edu said to lisard(a)zetnet.co.uk
:... I only hope that there is a "silent
:majority" who does not speak but disapproves them and this is the
:only reason that keeps me from leaving conmans and their helpers to
:their destiny by leaving this list.
please, since you clearly haven't found any, assume you are wrong and
bugger off.
--
Communa (together) we remember... we'll see you falling
you know soft spoken changes nothing to sing within her...
This is new. Just brought the uVAX up again. I sent ONE message to Usenet
mentioning the address.
I now made it to some luser's spam list!
This is the new thing...
The spam appears to be in Japanese?
I guess this will be the first spammer I mail that can UNDERSTAND what they're
being mailed! (A-CNH)
The question is, just out of curiosity, when did Usenet deteriorate to the
point that spamming started?
Was it around the time AOL let people on Internet? :)
(J/k!)
-------
