UPS: "Do not connect laser printer..."
 

On Tue, 21 Jul 2009 09:09:04 -0400, Meat Plow
wrote:

On Mon, 20 Jul 2009 11:56:18 -0700, Joerg
wrote:

Meat Plow wrote:
On Mon, 20 Jul 2009 10:11:37 -0700, Joerg
wrote:

Meat Plow wrote:
On Sun, 19 Jul 2009 08:55:05 -0700, Joerg
wrote:

What really wreaks havoc is a printer that has a powerful fuser which
draws short but huge bursts of current. That can cause the inverter
inside the UPS to choke.
chaCHING! Collect your prize at the door.

What did I win? Can one drink it?

How about a bottle of Macallan 1926 single malt?


Nice! But a 1978 Montrachet or a nice bottle of Chateau d'Yquem would
also do :-)

I prefer something more on the line of a Roederer Cristal.

Never heard of them before. Don't like the website either.

I have had some fabulous Tattenger bottles though.

UPS: "Do not connect laser printer..."
 

On Tue, 21 Jul 2009 07:59:03 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

Bob Larter wrote:

You're kidding! Why not?

My guess is that someone thinks you can mix ammonia and various household
items to make a bomb, but what I think happened is that someone who
can't read the Hebrew warnings on the bottle cleaned their toilet with
ammonia and clorox and they had to evacuate the whole neighborhood.

Now the most exotic toilet cleaner you can buy is something called
"hot water" (may cham) which is a mild dilution of hydrochloric acid. So mild,
I don't think it will cause skin burns.

Geoff.

Actually, if you mix household ammonia and household tincture of
iodine you can produce trivial amounts nitrogen tri-iodide. Maybe
enough to break your skin. There are some other chemicals that can be
made as well. However due to the low active concentrations of
household chemicals the yield is extremely poor. More pigheaded
legislation.

UPS: "Do not connect laser printer..."
 

On Tue, 21 Jul 2009 19:23:46 +0100, "Arfa Daily"
wrote:


"Jan Panteltje" wrote in message
...
On a sunny day (Tue, 21 Jul 2009 09:31:08 +0100) it happened "Arfa Daily"
wrote in :


"Torn Lawence" wrote in message
astnet...
Jan Panteltje wrote:
On a sunny day (Mon, 20 Jul 2009 11:14:04 +0000 (UTC)) it happened
"Geoffrey
S. Mendelson" wrote in
:

Greegor wrote:
Do inkjet printers handle the simily waveform well?
Inkjet printers use very low power stepper motors to move the head and
paper,
and very tiny heaters to make the ink bubble up.

Epson inkjets do not use heat at all, but piezo elements to push the
ink
out.
Better, allows more more types if ink, and is faster, and allows for
better control
of the droplets.
Yes I have couple of Epsons:-)
But their service sucks as it is non-existing.

I had an Epson. Replacement ink cartridges were cheaper than other
brands
too, because the piezos were permanent parts of the printer and not
built
into the cartridges. I didn't use it often enough, and when the nozzles
clogged up, the printer's life was over.


An Epson printer's life is over the moment you make your first print ....

Bull**** :-)

Your opinion my friend, but there are many many other dissatisfied owners
who would not agree with you ...



I
have lost count of the number of them that I have drop-kicked down the
garden.

Well, do they grow there????

Indeed they do not. They rot gently away, which is the best thing that they
can possibly do ...



The trouble with them is, they are full of features, and cheap, so
every time I wear out an HP after 6 or 7 years, I get enticed into buying
another Epson, thinking that they can't still be in business by being
stupid
enough not to have finally sorted out the irretrievably clogged head
syndrome ... How wrong and stupid *I* continue to be :-\

Na, my oldest Epson is a Stylus Color 460, is older then your HPs,
works OK, apart from a bad contact in the chip socket that requires
re-inserting the big DIL chip every now and then, should
really fix this some time.
But it is noisy.
My Epson R200 is also many years old, end very very quiet.



I think then, that you have been very very lucky. Perhaps the ones you have
are so old that they come from a time when Epson could still build printers
that were not worthless junk, designed to gobble as much ink as they
possibly can, from every cartridge fitted, when the jets on the end of just
one of them, have clogged. In fact, I think you are the first person I have
ever come across, who has not had a bad experience with one (cue hundreds of
lurkers to now come out of the woodwork, protesting what marvellous machines
they are ...)

Arfa


OK then. Count me as well, i have an old Epson color 860 that still
works fine and an Epson R200 as my main printer. Of course i only use
them a little bit. Replaced the inks many times due to finally
running out.

UPS: "Do not connect laser printer..."
 

Once it had been made, and passed through a filter
paper, we used to put it into corked boiling tubes (bigger than half inch
test tubes), and carry it around the school with us in our inside pockets.
A
good splat of the stuff on the floor in the corridor, would just about dry
in a lesson period, to the point where it was unstable. At the end of the
lesson, let the teacher leave the class first ... Oh the bang, and that
luvverly cloud of purple smoke rising to the ceiling, and the crackles
underfoot for days afterward when walking down that corridor. The fun of
laughing at the caretaker and his assistant trying to remove the purple
stain blasted into the surface of the tiles ... Then there was the joy of
making delayed fuses for tuppeny bangers by soaking string in ....
potassium
nitrate .... was it ? Tape a couple of inches to the top of a banger, then
set light to it and leave it under a seat at the back of the cinema at the
midnight movie. Plenty of time to return to your own seat before it went
off.

NTI is soluble in alcohol and perfectly stable as long as it's "wet".
An artist's paint brush and a classroom lock can generate loads of
fun. My senior year, I also had a master key to the interior locks in
the high school. That was fun too.

We kept it 'wet' by having it corked into the boiling tube as soon as it was
made. I don't know what the carrier liquid in Handy Andy was, but that was
what was keeping it wet. Whatever it was, quite volatile though, as it
didn't stay wet for long once a dollop had been splatted onto the floor.


How bizarre ! I too had a set of keys in my last year. At the end of the
previous year, we had a hot drinks machine installed in an open area under
our physics block, which was built on 'stilts'. By the side of the machine,
was a door which led to a cellar that backed onto the boiler room. The water
supply for the drinks machine came from in there. At the start of the autumn
term after the long summer holiday, myself and my little gang of
'troublemakers' - well, it seemed like we were at the time, but kindergarten
stuff compared to what you see in the papers and on TV now - were not far
away from the machine when the caretaker unlocked the door to go in and turn
on the water supply. He left the keys in the lock, and one of my 'merry men'
, who is now a senior pilot at one of the biggest airlines in the world,
crept up and removed the whole bunch. Afterward, he was terrified of being
caught with them, so he gave them to me for safe keeping. We had a lot of
fun that year, getting into places we shouldn't have been ...

I bet if I looked through all of my junk, I've still got them somewhere !



Oh happy happy days. What joyous things we learnt in 'real' schools all
those years ago !

Yeah. Kids today...

Thanks for reminding me of my mis-spent youth. :-))

You forgot?

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and become a
responsible citizen :-( Then you start to get old, and become a grump,
remembering what a good bloke you were back in the day. Guess I'm close to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa

UPS: "Do not connect laser printer..."
 

I think then, that you have been very very lucky. Perhaps the ones you have
are so old that they come from a time when Epson could still build printers
that were not worthless junk, designed to gobble as much ink as they
possibly can, from every cartridge fitted, when the jets on the end of just
one of them, have clogged. In fact, I think you are the first person I have
ever come across, who has not had a bad experience with one (cue hundreds
of
lurkers to now come out of the woodwork, protesting what marvellous
machines
they are ...)

Arfa


OK then. Count me as well, i have an old Epson color 860 that still
works fine and an Epson R200 as my main printer. Of course i only use
them a little bit. Replaced the inks many times due to finally
running out.

Here's a question. Is it because the Epsons that seem to prevail over long
periods, get only light use, as you say yours do, so only get turned on when
needed ? I think that this has a lot to do with the clogging problems of the
printers that Epson offer these days. I like to have my printer always on
and 'ready to roll'. I can't be doing with waiting 5 minutes while the thing
coughs and wheezes its way to being ready. When I need to print something
out, I need to do it now. The HPs seem to have a proper 'sleep' mode where
the heads 'park' over the seal, as it goes to sleep. The Epsons appear to
just 'stop' with the heads where they were last left. They only seem to park
if you do a full shutdown. IMHO, this is the reason that the heads clog.
Being left out in open space, the ink just dries in the nozzles. Once it has
done, it can take several cleaning cycles to recover them. The fact that
colours cannot be cleaned individually, is a royal pain in the arse, and
leads to huge ink wastage.

OTOH, my current HP is now probably 3+ years old, and has never been turned
off apart from the occasional need to do a full reset, when for some reason
the network has lost it, and it needs to be forced to talk to the router to
get a new IP address allocated.

To be fair to the Epsons that I have owned, I have never had an issue with
their general performance, speed, or print quality. I just find this head
clogging thing, which is a well known problem, sooooo frustrating, to the
point where I just get mad with them, which ain't good for the old
hypertension ...

Arfa

UPS: "Do not connect laser printer..."
 

On Tue, 21 Jul 2009 07:59:03 +0000, Geoffrey S. Mendelson wrote:

Now the most exotic toilet cleaner you can buy is something called
"hot water" (may cham) which is a mild dilution of hydrochloric acid.

That's called "Spirit of Salts" in the UK.

UPS: "Do not connect laser printer..."
 

Now the most exotic toilet cleaner you can buy is something called
"hot water" (may cham) which is a mild dilution of hydrochloric acid.

That's called "Spirit of Salts" in the UK.

There's something wrong with hydrochloric acid? I use SnoBol, which -- uh --
"cuts the crap" far better than detergent-only cleaners.

UPS: "Do not connect laser printer..."
 

On Mon, 20 Jul 2009 11:56:18 -0700, Joerg
wrote:

Meat Plow wrote:
On Mon, 20 Jul 2009 10:11:37 -0700, Joerg
wrote:

Meat Plow wrote:
On Sun, 19 Jul 2009 08:55:05 -0700, Joerg
wrote:

What really wreaks havoc is a printer that has a powerful fuser which
draws short but huge bursts of current. That can cause the inverter
inside the UPS to choke.
chaCHING! Collect your prize at the door.

What did I win? Can one drink it?

How about a bottle of Macallan 1926 single malt?


Nice! But a 1978 Montrachet or a nice bottle of Chateau d'Yquem would
also do :-)

A couple bottles of Chimay Gold, properly handled and stored would
suffice just fine.

OK maybe a case.

UPS: "Do not connect laser printer..."
 

On Sun, 19 Jul 2009 16:19:04 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

Since
we print around 5 times a week, the standby current matters more than the
max draw, but I would not want to plug it into a UPS.

Geoff.

If all you print is 5 times a week, and idle current matters that much,
burning a few calories by forcing anyone wanting to do a print job to
walk over and turn on the printer's main switch (zero idle current) and
wait a few minutes for the printer to boot up to its ready point would be
the right way to go.

Then again, it matters not what printer you buy, and you can plug it in
directly since you do not need "protection" for a device you only use 5
times a week, which has no need to be plugged into a UPS to begin with.
Any normal power strip would protect it, and many have RJ45 network
isolation ports as well. If you are using the USB interface, it IS 100%
plug and play and would not need to be plugged in until runtime either.

UPS: "Do not connect laser printer..."
 

On Sun, 19 Jul 2009 19:35:22 -0700, Jeff Liebermann
wrote:


My clamp-on amps guesser has a peak hold function. I'll try it out on
some of my LaserJet printers in the office and see what it shows.

Wont you have to open up the IEC power cord and clamp only a single
path?

I also notice that many of these are powered with standard 10A IEC line
cords. How can that be right for a device with such high usage
declarations?

UPS: "Do not connect laser printer..."
 

On Mon, 20 Jul 2009 11:14:04 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

Greegor wrote:
Do inkjet printers handle the simily waveform well?

Inkjet printers use very low power stepper motors to move the head and paper,
and very tiny heaters to make the ink bubble up. They run off of low power DC.
The power supply in the printer (or external on most of my inkjets) very happily
converts the output of a UPS to the DC that it needs.

The difference with laser printers is that the toner only sticks to the paper
as long as there is an electrical charge. To keep it falling off of the paper
after a few minutes, it has to be melted onto the paper.

The technical term used is "fused" and the part of the printer is called
a "fuser". They could of as easily called it "ironing" and an "iron", (as in
an iron-on T shirt pattern) but that would have been too simple and
not sound important enough. :-)

Geoff.

Thermal Embedding... wait!

Vulcanization...

Makes the print job live long and prosper, as opposed to...

http://www.funnyordie.com/videos/5d0...ulcan-greeting

UPS: "Do not connect laser printer..."
 

On Mon, 20 Jul 2009 11:57:24 GMT, Jan Panteltje
wrote:

On a sunny day (Mon, 20 Jul 2009 11:14:04 +0000 (UTC)) it happened "Geoffrey
S. Mendelson" wrote in
:

Greegor wrote:
Do inkjet printers handle the simily waveform well?

Inkjet printers use very low power stepper motors to move the head and paper,
and very tiny heaters to make the ink bubble up.

Epson inkjets do not use heat at all, but piezo elements to push the ink out.
Better, allows more more types if ink, and is faster, and allows for better control
of the droplets.
Yes I have couple of Epsons:-)
But their service sucks as it is non-existing.

The problem with Epsons used to be that the print head stayed on the
printer, where HP replaces them with each cartridge.

That may have changed now though, since I haven't bought a printer in
years, and have seen several would be huge advances in detail and color
range capability. I don't know how they spray these days though, or who
the big print engine maker is, or if they all make their own now or what.

Used to be Canon. Seems like there are a lot of different "engines"
out there now though. Tektronix and Xerox still use solid ink methods.
I though most ink jet setups were piezo though by now, since it has such
precise fractional portioning ability.

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and become a
responsible citizen :-( Then you start to get old, and become a grump,
remembering what a good bloke you were back in the day. Guess I'm close to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 09:13:35 -0400, Meat Plow
wrote:


Isn't pure Iodine highly unstable?


Only in the hands of the highly unstable.

UPS: "Do not connect laser printer..."
 

Jupiter Jaq wrote:
On Mon, 20 Jul 2009 11:56:18 -0700, Joerg
wrote:

Meat Plow wrote:
On Mon, 20 Jul 2009 10:11:37 -0700, Joerg
wrote:

Meat Plow wrote:
On Sun, 19 Jul 2009 08:55:05 -0700, Joerg
wrote:

What really wreaks havoc is a printer that has a powerful fuser which
draws short but huge bursts of current. That can cause the inverter
inside the UPS to choke.
chaCHING! Collect your prize at the door.
What did I win? Can one drink it?
How about a bottle of Macallan 1926 single malt?

Nice! But a 1978 Montrachet or a nice bottle of Chateau d'Yquem would
also do :-)

A couple bottles of Chimay Gold, properly handled and stored would
suffice just fine.

OK maybe a case.


Yes!

Even though the bottle of Dos Equis I had while doing the tear-down
maintenance on our DE filter yesterday night just hit the spot :-)

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 00:49:53 +0100, Arfa Daily wrote:
....
stain blasted into the surface of the tiles ... Then there was the joy
of making delayed fuses for tuppeny bangers by soaking string in ....
potassium nitrate .... was it ? Tape a couple of inches to the top of a
banger, then set light to it and leave it under a seat at the back of
the cinema at the midnight movie. Plenty of time to return to your own
seat before it went off.

We used to use a book of matches and a lit cigarette. :-

Cheers!
Rich

UPS: "Do not connect laser printer..."
 

On Tue, 21 Jul 2009 22:08:29 -0500, krw wrote:
On Wed, 22 Jul 2009 00:49:53 +0100, "Arfa Daily"

Thanks for reminding me of my mis-spent youth. :-))

You forgot?

If you remember the '60's, you probably weren't participating. :-

Cheers!
Rich

UPS: "Do not connect laser printer..."
 

FatBytestard wrote:

burning a few calories by forcing anyone wanting to do a print job to
walk over and turn on the printer's main switch (zero idle current) and
wait a few minutes for the printer to boot up to its ready point would be
the right way to go.

In this case the printer is next to the server, the computers are spread over
two floors and several rooms. And to top it off, I'm partially disabled, so
just getting up and walking over the printer, even if I were next to it,
is difficult.

Oh and BTW, the power switch is behind the printer, which would have to
be pulled out from the shelf it is on with one hand while the other reaches
behind it feeling around. For most of us, this would require an extra person,
sort of like the LED watch from Saturday Night Live that required you to push
3 buttons.

Geoff.


--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM

UPS: "Do not connect laser printer..."
 

Jupiter Jaq wrote:
Vulcanization...

Doesn't that require sulfur, or is that just rubber?

Geoff.



--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 18:34:03 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

FatBytestard wrote:

burning a few calories by forcing anyone wanting to do a print job to
walk over and turn on the printer's main switch (zero idle current) and
wait a few minutes for the printer to boot up to its ready point would be
the right way to go.

In this case the printer is next to the server, the computers are spread over
two floors and several rooms. And to top it off, I'm partially disabled, so
just getting up and walking over the printer, even if I were next to it,
is difficult.

Oh and BTW, the power switch is behind the printer, which would have to
be pulled out from the shelf it is on with one hand while the other reaches
behind it feeling around. For most of us, this would require an extra person,
sort of like the LED watch from Saturday Night Live that required you to push
3 buttons.

Geoff.

The main power switch on the printer itself makes its off current zero.
You can build a small bluetooth device that fires a solenoid and a rod to
turn it on via network call if you want, and have someone else turn it
off for you. That could be lower consumption. :-)

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 18:34:04 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

Jupiter Jaq wrote:
Vulcanization...

Doesn't that require sulfur, or is that just rubber?

Geoff.

It was a Star Trek joke, actually.

No, it was actually used as a term to define the polymerization (the
actual term) of any polymer based media for many years.

Now, we know the term is 'polymerization' (with the exception of the
original definition for the term), so nobody knows much more about the
term 'vulcanization' beyond its original use, which most certainly was
for rubber, and required Sulfur.

So, it was loosely used to refer to the 'hardening' of just about
anything 'wet'. Not correctly, and not in large circles, but it was
used.

"Fixing" was a term that was already in place, and related to
paintings... works of art. That would have been the term until someone
cited the fact that at the microscopic level the pigment particles were
actually 'fusing' to the paper fibers.

Otherwise, everyone would call it a 'fixer' and the process would be
'fixing'.

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:


Once it had been made, and passed through a filter
paper, we used to put it into corked boiling tubes (bigger than half inch
test tubes), and carry it around the school with us in our inside pockets.
A
good splat of the stuff on the floor in the corridor, would just about dry
in a lesson period, to the point where it was unstable. At the end of the
lesson, let the teacher leave the class first ... Oh the bang, and that
luvverly cloud of purple smoke rising to the ceiling, and the crackles
underfoot for days afterward when walking down that corridor. The fun of
laughing at the caretaker and his assistant trying to remove the purple
stain blasted into the surface of the tiles ... Then there was the joy of
making delayed fuses for tuppeny bangers by soaking string in ....
potassium
nitrate .... was it ? Tape a couple of inches to the top of a banger, then
set light to it and leave it under a seat at the back of the cinema at the
midnight movie. Plenty of time to return to your own seat before it went
off.

NTI is soluble in alcohol and perfectly stable as long as it's "wet".
An artist's paint brush and a classroom lock can generate loads of
fun. My senior year, I also had a master key to the interior locks in
the high school. That was fun too.

We kept it 'wet' by having it corked into the boiling tube as soon as it was
made. I don't know what the carrier liquid in Handy Andy was, but that was
what was keeping it wet. Whatever it was, quite volatile though, as it
didn't stay wet for long once a dollop had been splatted onto the floor.

Don't know what that is either. We always used ammonia water, so the
carrier was - water. Iodine isn't soluble in water but it is in
alcohol. Alcohol replaces the water in the NTI, so...

How bizarre ! I too had a set of keys in my last year. At the end of the
previous year, we had a hot drinks machine installed in an open area under
our physics block, which was built on 'stilts'. By the side of the machine,
was a door which led to a cellar that backed onto the boiler room. The water
supply for the drinks machine came from in there. At the start of the autumn
term after the long summer holiday, myself and my little gang of
'troublemakers' - well, it seemed like we were at the time, but kindergarten
stuff compared to what you see in the papers and on TV now - were not far
away from the machine when the caretaker unlocked the door to go in and turn
on the water supply. He left the keys in the lock, and one of my 'merry men'
, who is now a senior pilot at one of the biggest airlines in the world,
crept up and removed the whole bunch. Afterward, he was terrified of being
caught with them, so he gave them to me for safe keeping. We had a lot of
fun that year, getting into places we shouldn't have been ...

I was the property master for the marching band. One of the previous
PMs was given the task of duplicating some keys for the building when
it was new. The keys were stamped "do not copy", but no one ever
looked. The key was passed down from PM to PM thereafter. Only PMs
ever knew the key existed.

I bet if I looked through all of my junk, I've still got them somewhere !

I "passed it on" when I graduated. I had an outdoor key (had access
to all the indoor keys as part of my job) to our EE building in
college, acquired much the same way. Even though the university
thought it was a "secure" lock, the key blank was identical to a
common house key.


Oh happy happy days. What joyous things we learnt in 'real' schools all
those years ago !

Yeah. Kids today...

Thanks for reminding me of my mis-spent youth. :-))

You forgot?

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and become a
responsible citizen :-( Then you start to get old, and become a grump,
remembering what a good bloke you were back in the day. Guess I'm close to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

My kid is 30 now. ;-) I usually listen to Bill Bennett on my MP3
player, though Moody Blues, Doors, ELP, and BS&T are on there too. ;-)

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 18:23:00 GMT, "Rich Grise, Plainclothes Hippie"
wrote:

On Tue, 21 Jul 2009 22:08:29 -0500, krw wrote:
On Wed, 22 Jul 2009 00:49:53 +0100, "Arfa Daily"

Thanks for reminding me of my mis-spent youth. :-))

You forgot?

If you remember the '60's, you probably weren't participating. :-

Too young. ;-)

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 09:13:35 -0400, Meat Plow
wrote:

On Wed, 22 Jul 2009 00:49:53 +0100, "Arfa Daily"
wrote:


"krw" wrote in message
. ..
On Tue, 21 Jul 2009 07:59:03 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

Bob Larter wrote:

You're kidding! Why not?

My guess is that someone thinks you can mix ammonia and various household
items to make a bomb,

Ah, but you can! I did it all the time when I was in high school.
Nitrogen triiodide is fun stuff. ;-)

NTI is WICKED stuff ! We used to make it by mixing a very strong household
cleaner called Handy Andy with pure iodine crystals 'borrowed' from the
biology department. For some reason, the ones there were a lot more pure
than any iodine crystals or liquid derivatives available for theft in the
chemistry department ... Once it had been made, and passed through a filter
paper, we used to put it into corked boiling tubes (bigger than half inch
test tubes), and carry it around the school with us in our inside pockets. A
good splat of the stuff on the floor in the corridor, would just about dry
in a lesson period, to the point where it was unstable. At the end of the
lesson, let the teacher leave the class first ... Oh the bang, and that
luvverly cloud of purple smoke rising to the ceiling, and the crackles
underfoot for days afterward when walking down that corridor. The fun of
laughing at the caretaker and his assistant trying to remove the purple
stain blasted into the surface of the tiles ... Then there was the joy of
making delayed fuses for tuppeny bangers by soaking string in .... potassium
nitrate .... was it ? Tape a couple of inches to the top of a banger, then
set light to it and leave it under a seat at the back of the cinema at the
midnight movie. Plenty of time to return to your own seat before it went
off.

Oh happy happy days. What joyous things we learnt in 'real' schools all
those years ago !

Thanks for reminding me of my mis-spent youth. :-))

Arfa


Isn't pure Iodine highly unstable?

Nope.

UPS: "Do not connect laser printer..."
 

"Jupiter Jaq" wrote in message
...
On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and become
a
responsible citizen :-( Then you start to get old, and become a grump,
remembering what a good bloke you were back in the day. Guess I'm close to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

Too cryptic for me this time of night ... A blunt what ... ? Knife ?
Instrument ? :-)

Arfa

UPS: "Do not connect laser printer..."
 

"Rich Grise, Plainclothes Hippie" wrote in message
...
On Tue, 21 Jul 2009 22:08:29 -0500, krw wrote:
On Wed, 22 Jul 2009 00:49:53 +0100, "Arfa Daily"

Thanks for reminding me of my mis-spent youth. :-))

You forgot?

If you remember the '60's, you probably weren't participating. :-

Cheers!
Rich


I remember the sixties very well Rich, but just about 4 years too young to
be participating in *that* way ... !

Arfa

UPS: "Do not connect laser printer..."
 

"Rich Grise" wrote in message
...
On Wed, 22 Jul 2009 00:49:53 +0100, Arfa Daily wrote:
...
stain blasted into the surface of the tiles ... Then there was the joy
of making delayed fuses for tuppeny bangers by soaking string in ....
potassium nitrate .... was it ? Tape a couple of inches to the top of a
banger, then set light to it and leave it under a seat at the back of
the cinema at the midnight movie. Plenty of time to return to your own
seat before it went off.

We used to use a book of matches and a lit cigarette. :-

Cheers!
Rich


And we have the brass neck to lecture *our* kids about responsible behaviour
!! When I relate some of these tales of schoolboy pranks to my kids, they
can't believe what a bad lot we were back then ... :-))

Arfa

UPS: "Do not connect laser printer..."
 

In article ,
Arfa Daily wrote:

And we have the brass neck to lecture *our* kids about responsible behaviour
!! When I relate some of these tales of schoolboy pranks to my kids, they
can't believe what a bad lot we were back then ... :-))

Simply repeating the common pattern of the last few thousand years, I
think. The younger generation is *always* reckless and irresponsible,
hell-bent on disaster, and disrespectful of the wisdom of their elders
(from the POV of the elders), and the elders are conservative
hypocritical stick-in-the-muds who have forgotten how to live and who
are obviously guilty for completely yngvi'ing up the world (from the
POV of the younger set).

It's been that way at least since Aristotle, and probably a whole lot
longer than that.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 10:39:46 +0100, "Arfa Daily"
wrote:


I think then, that you have been very very lucky. Perhaps the ones you have
are so old that they come from a time when Epson could still build printers
that were not worthless junk, designed to gobble as much ink as they
possibly can, from every cartridge fitted, when the jets on the end of just
one of them, have clogged. In fact, I think you are the first person I have
ever come across, who has not had a bad experience with one (cue hundreds
of
lurkers to now come out of the woodwork, protesting what marvellous
machines
they are ...)

Arfa


OK then. Count me as well, i have an old Epson color 860 that still
works fine and an Epson R200 as my main printer. Of course i only use
them a little bit. Replaced the inks many times due to finally
running out.

Here's a question. Is it because the Epsons that seem to prevail over long
periods, get only light use, as you say yours do, so only get turned on when
needed ? I think that this has a lot to do with the clogging problems of the
printers that Epson offer these days. I like to have my printer always on
and 'ready to roll'. I can't be doing with waiting 5 minutes while the thing
coughs and wheezes its way to being ready. When I need to print something
out, I need to do it now. The HPs seem to have a proper 'sleep' mode where
the heads 'park' over the seal, as it goes to sleep. The Epsons appear to
just 'stop' with the heads where they were last left. They only seem to park
if you do a full shutdown. IMHO, this is the reason that the heads clog.
Being left out in open space, the ink just dries in the nozzles. Once it has
done, it can take several cleaning cycles to recover them. The fact that
colours cannot be cleaned individually, is a royal pain in the arse, and
leads to huge ink wastage.

OTOH, my current HP is now probably 3+ years old, and has never been turned
off apart from the occasional need to do a full reset, when for some reason
the network has lost it, and it needs to be forced to talk to the router to
get a new IP address allocated.

To be fair to the Epsons that I have owned, I have never had an issue with
their general performance, speed, or print quality. I just find this head
clogging thing, which is a well known problem, sooooo frustrating, to the
point where I just get mad with them, which ain't good for the old
hypertension ...

Arfa

Interesting. Both of mine are on continuously. And both park the
heads in sealed cups. Proper head parking is known to make a big
difference. Must be why printers that do not cap the heads combine
the print head into the ink cartridge.

UPS: "Do not connect laser printer..."
 

On Thu, 23 Jul 2009 01:59:43 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
.. .
On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and become
a
responsible citizen :-( Then you start to get old, and become a grump,
remembering what a good bloke you were back in the day. Guess I'm close to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

Too cryptic for me this time of night ... A blunt what ... ? Knife ?
Instrument ? :-)

Arfa

Damn. I forgot the era.

A DOOBIE!

UPS: "Do not connect laser printer..."
 

krw wrote:

On Wed, 22 Jul 2009 18:23:00 GMT, "Rich Grise, Plainclothes Hippie"
wrote:

On Tue, 21 Jul 2009 22:08:29 -0500, krw wrote:
On Wed, 22 Jul 2009 00:49:53 +0100, "Arfa Daily"

Thanks for reminding me of my mis-spent youth. :-))

You forgot?

If you remember the '60's, you probably weren't participating. :-

Too young. ;-)


If you remember the '60s, you didn't do drugs.


--
You can't have a sense of humor, if you have no sense!

UPS: "Do not connect laser printer..."
 

"Jupiter Jaq" wrote in message
...
On Thu, 23 Jul 2009 01:59:43 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
. ..
On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and
become
a
responsible citizen :-( Then you start to get old, and become a
grump,
remembering what a good bloke you were back in the day. Guess I'm close
to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

Too cryptic for me this time of night ... A blunt what ... ? Knife ?
Instrument ? :-)

Arfa

Damn. I forgot the era.

A DOOBIE!

Errr, nope, not with that one either ... An 'Americanism' that I'm not
familiar with, maybe ? ):-|

Puzzled Arfa ...

UPS: "Do not connect laser printer..."
 

"Dave Platt" wrote in message
...
In article ,
Arfa Daily wrote:

And we have the brass neck to lecture *our* kids about responsible
behaviour
!! When I relate some of these tales of schoolboy pranks to my kids, they
can't believe what a bad lot we were back then ... :-))

Simply repeating the common pattern of the last few thousand years, I
think. The younger generation is *always* reckless and irresponsible,
hell-bent on disaster, and disrespectful of the wisdom of their elders
(from the POV of the elders), and the elders are conservative
hypocritical stick-in-the-muds who have forgotten how to live and who
are obviously guilty for completely yngvi'ing up the world (from the
POV of the younger set).

It's been that way at least since Aristotle, and probably a whole lot
longer than that.

--
Dave Platt AE6EO


I suspect you speak the truth Dave ...

Arfa

UPS: "Do not connect laser printer..."
 

And we have the brass neck to lecture *our* kids about responsible
behaviour
!! When I relate some of these tales of schoolboy pranks to my kids,
they
can't believe what a bad lot we were back then ... :-))

Simply repeating the common pattern of the last few thousand years, I
think. The younger generation is *always* reckless and irresponsible,
hell-bent on disaster, and disrespectful of the wisdom of their elders
(from the POV of the elders), and the elders are conservative
hypocritical stick-in-the-muds who have forgotten how to live and who
are obviously guilty for completely yngvi'ing up the world (from the
POV of the younger set).

It's been that way at least since Aristotle, and probably a whole lot
longer than that.

I suspect you speak the truth Dave ...

Sorry, but I disagree. The US has been on a downhill path ever since it
decided, after WWII, that children would rule this country.

UPS: "Do not connect laser printer..."
 

"JosephKK" wrote in message
...
On Wed, 22 Jul 2009 10:39:46 +0100, "Arfa Daily"
wrote:


I think then, that you have been very very lucky. Perhaps the ones you
have
are so old that they come from a time when Epson could still build
printers
that were not worthless junk, designed to gobble as much ink as they
possibly can, from every cartridge fitted, when the jets on the end of
just
one of them, have clogged. In fact, I think you are the first person I
have
ever come across, who has not had a bad experience with one (cue hundreds
of
lurkers to now come out of the woodwork, protesting what marvellous
machines
they are ...)

Arfa


OK then. Count me as well, i have an old Epson color 860 that still
works fine and an Epson R200 as my main printer. Of course i only use
them a little bit. Replaced the inks many times due to finally
running out.

Here's a question. Is it because the Epsons that seem to prevail over long
periods, get only light use, as you say yours do, so only get turned on
when
needed ? I think that this has a lot to do with the clogging problems of
the
printers that Epson offer these days. I like to have my printer always on
and 'ready to roll'. I can't be doing with waiting 5 minutes while the
thing
coughs and wheezes its way to being ready. When I need to print something
out, I need to do it now. The HPs seem to have a proper 'sleep' mode where
the heads 'park' over the seal, as it goes to sleep. The Epsons appear to
just 'stop' with the heads where they were last left. They only seem to
park
if you do a full shutdown. IMHO, this is the reason that the heads clog.
Being left out in open space, the ink just dries in the nozzles. Once it
has
done, it can take several cleaning cycles to recover them. The fact that
colours cannot be cleaned individually, is a royal pain in the arse, and
leads to huge ink wastage.

OTOH, my current HP is now probably 3+ years old, and has never been turned
off apart from the occasional need to do a full reset, when for some reason
the network has lost it, and it needs to be forced to talk to the router to
get a new IP address allocated.

To be fair to the Epsons that I have owned, I have never had an issue with
their general performance, speed, or print quality. I just find this head
clogging thing, which is a well known problem, sooooo frustrating, to the
point where I just get mad with them, which ain't good for the old
hypertension ...

Arfa

Interesting. Both of mine are on continuously. And both park the
heads in sealed cups. Proper head parking is known to make a big
difference. Must be why printers that do not cap the heads combine
the print head into the ink cartridge.

So, how old are your Epsons ? None of the ones that I owned ever parked
properly. I wonder if they stopped doing it on later or cheaper models, for
some reason. OTOH, my HPs have all parked to a sealed area, yet some of them
have had the heads on the cartridge, and some haven't. The 5180 that I
currently use, has external heads, but they have never clogged as long as I
have owned it, so yes, correct parking is definitely significant in this.

Arfa

UPS: "Do not connect laser printer..."
 

On Thu, 23 Jul 2009 13:58:42 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
.. .
On Thu, 23 Jul 2009 01:59:43 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
...
On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and
become
a
responsible citizen :-( Then you start to get old, and become a
grump,
remembering what a good bloke you were back in the day. Guess I'm close
to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

Too cryptic for me this time of night ... A blunt what ... ? Knife ?
Instrument ? :-)

Arfa

Damn. I forgot the era.

A DOOBIE!

Errr, nope, not with that one either ... An 'Americanism' that I'm not
familiar with, maybe ? ):-|

Puzzled Arfa ...


A friggin' joint! A SPLEEF.

Or, as was said in "The Magic Christian" Damnable Wog Hemp!

UPS: "Do not connect laser printer..."
 

On Thu, 23 Jul 2009 09:35:19 -0400, Meat Plow
wrote:

On Thu, 23 Jul 2009 01:59:43 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
. ..
On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You leave
school, go to college, grow up a bit, get married, raise kids, and become
a
responsible citizen :-( Then you start to get old, and become a grump,
remembering what a good bloke you were back in the day. Guess I'm close to
slipping into that phase now. Grown up kids look at me like I'm mad when
they see me with an iPod stuck in my lugholes, listening to the likes of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

Too cryptic for me this time of night ... A blunt what ... ? Knife ?
Instrument ? :-)

Arfa


Cheap cigar unstuffed, contents replaced with a mix of cigar tobacco
and Cannabis.

Does not always involve tobacco, nor does it require any... at all.

UPS: "Do not connect laser printer..."
 

On Wed, 22 Jul 2009 10:05:27 -0700, FatBytestard
wrote:

On Sun, 19 Jul 2009 19:35:22 -0700, Jeff Liebermann
wrote:


My clamp-on amps guesser has a peak hold function. I'll try it out on
some of my LaserJet printers in the office and see what it shows.

Wont you have to open up the IEC power cord and clamp only a single
path?

Nope. I have an adapter that came with a Radio Shock clamp on
Amps-guesser. 22-161 multiplier.
http://support.radioshack.com/support_meters/doc21/21584.htm
It's the device on the right. It's a double loop, with 10 turns in
one loop, and one turn in the other. With the clamp-on ammeter in the
10x loop, the current readings are 10 times larger, making low current
readings much easier. In the 1x loop, it effectively splits the line.
Very handy.

Incidentally, the clamp-on meter is a Honeytek A902 that I bought on
eBay many years ago. Not great, but it has the features I wanted. 2A
full scale, temperature probe, and peak hold. The peak hold is handy
for measuring laser printer inrush current, but I was more interested
in the peak current at a remote radio site, where transmitters are
constantly and randomly drawing current.

I also notice that many of these are powered with standard 10A IEC line
cords. How can that be right for a device with such high usage
declarations?

Dunno, but I can guess. Current capacity standards for device cords
are tested for maximum wire heating. While the 23A inrush current
might seem rather high, it only appears for perhaps a second, when the
fuser initially warms up. After that, the operating current of the
laserjet is well withing the current limitations of a common #14AWG
power cord. Try it. Does the cord get warm when furiously printing?
Probably not.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

UPS: "Do not connect laser printer..."
 

On Sun, 19 Jul 2009 19:35:22 -0700, Jeff Liebermann
wrote:

My clamp-on amps guesser has a peak hold function. I'll try it out on
some of my LaserJet printers in the office and see what it shows.

Well, I just tried it at home. 46A peak on startup for my HP LaserJet
2100 printer (at US standard 117VAC/60Hz). Ouch. I did it several
different ways and came up with roughly the same result. I couldn't
have done it without the "max hold" function on the Honeytek A902
clamp on ammeter because the inrush current doesn't last very long.
46A peak will certainly cause problems for any UPS running in backup
mode.



--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

UPS: "Do not connect laser printer..."
 

"Jupiter Jaq" wrote in message
...
On Thu, 23 Jul 2009 13:58:42 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
. ..
On Thu, 23 Jul 2009 01:59:43 +0100, "Arfa Daily"
wrote:


"Jupiter Jaq" wrote in message
m...
On Wed, 22 Jul 2009 10:24:41 +0100, "Arfa Daily"
wrote:

Well, not really, but it's all been a very long time ago now. You
leave
school, go to college, grow up a bit, get married, raise kids, and
become
a
responsible citizen :-( Then you start to get old, and become a
grump,
remembering what a good bloke you were back in the day. Guess I'm
close
to
slipping into that phase now. Grown up kids look at me like I'm mad
when
they see me with an iPod stuck in my lugholes, listening to the likes
of
Uriah Heep and Dr John ...

Arfa


Did they bring you a blunt yet?

Too cryptic for me this time of night ... A blunt what ... ? Knife ?
Instrument ? :-)

Arfa

Damn. I forgot the era.

A DOOBIE!

Errr, nope, not with that one either ... An 'Americanism' that I'm not
familiar with, maybe ? ):-|

Puzzled Arfa ...


A friggin' joint! A SPLEEF.

Or, as was said in "The Magic Christian" Damnable Wog Hemp!

Ah ! Right ! Shoulda realised ... Funnily enough, I don't think that I have
ever heard either of the first two words used here. But then the older I
get, the more addled I seem to become, so I probably have, and just
forgotten ... d;~}

Arfa