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

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

Reply to
Arfa Daily
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Cheap cigar unstuffed, contents replaced with a mix of cigar tobacco and Cannabis.

Reply to
Meat Plow

A friggin' joint! A SPLEEF.

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

Reply to
Jupiter Jaq

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

Reply to
Jupiter Jaq

Nope. I have an adapter that came with a Radio Shock clamp on Amps-guesser. 22-161 multiplier.

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.

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

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

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

Reply to
Arfa Daily

Oh, I don't dispute that overall, standards seem to be dropping for the reason you give, and probably others as well. Same sort of thing here. I was just agreeing with the general principles of how every generation knows better than the one coming up, and the one coming up blames the previous one for all the shortcomings of the world, and treats them as though they know nothing about life when you're young ...

Arfa

Reply to
Arfa Daily

I'll let you have the honor to be the expert on rolling blunts.

Reply to
Meat Plow

This is not true, all Epsons I have seen and repaired park the heads a few seconds after the last print job.

Yes, yet old style Epsons (like Epson stylus 500, color II, stylus pro, etc) allowed to clean B/W and color separately and they really did separately, those old printers were very realiable if used with proper inks and almost never clogged. This started to decay after the stylus color 400 when they redesigned all and made b/w and color injectors the same block. Yet, used carefully and with properly selected inks that do not clog easily they work fine. I have been using refills for all my Epsons and it turns out a lot cheaper than HPs and works great.

I have found Epson printers are very sensitive to their environment, place it near something warm (for example on top of a PC) or where air circulation is likely and you are going to face lots of clogs. On the other hand if you place in a cool (ambient temp) non ventilated place you can have it turned off for months and it will work straight.

Reply to
Jeroni Paul

Most 10A IEC line cords use around 20 Ga for the conductors, which is also a borderline choice IMNSHO.

Whenever a company I am working for goes to throw out the old crap, I look for heavier gauge IEC line cords every time.

I hate those paper thin jobs that are so proliferant.

Reply to
FatBytestard

I do not want to send print jobs, being sure to do so "carefully". I want to hit print, and get print, without ANY "extra care". That is pathetic.

I also have yet to see an Epson that did not have nozzle clog issues, and use up half your ink flooding them out in attempts to clear them.

Absolutely pathetic print engine paradigm.

Reply to
FatBytestard

Oops, I lied. My extension cords are #14AwG. All the computah and printah power cords I could find in the pile are #18AWG 3 conductors.

I've never seen one with #20AWG. That would be an IEC 320 C13. Digging.... well Wikipedia is no help:

Googling for "IEC 320 C13 AWG" yields lots of #18AWG cords, and nothing else.

I have a few of those "heavy guage" cords that were supplied with laser printers, copiers, and big servers. They also say #14 AWG. The "heavy duty" construction seems to be a matter of using more plastic and PVC jacket, than adding more copper.

I kinda like them. They're really handy for test cords on my workbench. They aren't stiff and don't get in the way. I have about

6 of them installed on various power strips on the bench. They all are #18 AWG.
Reply to
Jeff Liebermann

No. Ammonium tri-Iodide and Nitrogen Tri-Iodide are the traditional unstable contact explosive. Great fun in high skool and college blowing things up. It was also probably the origin of the term "purple haze". It's fairly easy to make and equally easy to have a spectacular accident.

Reply to
Jeff Liebermann

It is just very flimsy 18Ga, soft PVC. Give me 16ga or higher any day.

Reply to
FatBytestard

What ever happened to fulminate of mercury?

Thanks, Rich

Reply to
Rich Grise

The ingredients became a bit tougher to come by and more expensive, same for lead picrate.

--=20 Transmitted with recycled bits.

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Reply to
JosephKK

You're confusing BubbleJets (Canon) with InkJets (HP/Epson). The former use a heating element per pixel, the latter use a piezo element.

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    W
  . | ,. w ,   "Some people are alive only because
   \\|/  \\|/     it is illegal to kill them."    Perna condita delenda est
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Reply to
Bob Larter

Yep. I've found the same thing.

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    W
  . | ,. w ,   "Some people are alive only because
   \\|/  \\|/     it is illegal to kill them."    Perna condita delenda est
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Reply to
Bob Larter

caution

Yes, that's correct. (Fixed hundreds of them, back in the days.)

--
    W
  . | ,. w ,   "Some people are alive only because
   \\|/  \\|/     it is illegal to kill them."    Perna condita delenda est
---^----^---------------------------------------------------------------
Reply to
Bob Larter

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