Digest for sci.electronics.repair@googlegroups.com - 20 updates in 6 topics

"David Farber" <farberbear.unspam@aol.com>: Apr 11 08:42AM -0700

The Federal Trade Commission recently announced that warning stickers that
say people will void their warranties are not only meaningless but also
illegal.
 
Full story is here:
https://www.washingtonpost.com/news/the-switch/wp/2018/04/11/those-stickers-warning-that-repairs-will-void-your-warranty-are-nonsense-ftc-says
 
https://www.ftc.gov/news-events/press-releases/2018/04/ftc-staff-warns-companies-it-illegal-condition-warranty-coverage
--
David Farber
Los Osos, CA
Ragnusen Ultred <rragnusen@ultred.com>: Apr 11 04:57AM -0700

FTC Warns Companies ĄĽWarranty Void if RemovedĄŚ Stickers Are Flatly Illegal
https://www.extremetech.com/gaming/267288-ftc-warns-companies-warranty-void-if-removed-stickers-are-flatly-illegal
--- begin verbatim quote ---
The 1975 Magnuson-Moss Warranty Act made it illegal for companies to force
users to only repair hardware using specific components or via "authorized"
resellers. While companies are not required to offer warranties, if they do
offer a warranty, they aren't allowed to void it simply because the
customer has the device repaired elsewhere. Companies are allowed to
require you to ship the device to them for warranty service or to return it
to the store you purchased it from, but they can't void your warranty just
because you repaired an unrelated problem yourself.
 
The FTC didn't name which companies it contacted, but notes that the firms
in question sell "automobiles, cellular devices, and video gaming systems
in the United States." The FTC does give three examples of offending
warranty language, however, which let us hone in on some of the targets by
searching for the text strings directly:
 
"The use of [company name] parts is required to keep yourĄK manufacturer's
warranties and any extended warranties intact." = Hyundai.
 
"This warranty shall not apply if this productĄK is used with products not
sold or licensed by" = Nintendo.
 
"This warranty does not apply if this productĄK has had the warranty seal on
the [product] altered, defaced, or removed" = Sony.
 
DonĄŚt put up with any BS from Nintendo, Sony, or Microsoft (Microsoft has
used the same types of warnings on the Xbox One). Your warranty is not void
simply because you opened a box. TheyĄŚre not allowed to tell you
differently, and neither are firms like Apple (another likely recipient of
one of these letters).
--- end verbatim quote ---
"pfjw@aol.com" <peterwieck33@gmail.com>: Apr 11 05:44AM -0700

Don't feed the troll.
Jeff Liebermann <jeffl@cruzio.com>: Apr 11 08:35AM -0700

On Wed, 11 Apr 2018 04:57:07 -0700, Ragnusen Ultred
 
>FTC Warns Companies eWarranty Void if Removedf Stickers Are Flatly Illegal
>https://www.extremetech.com/gaming/267288-ftc-warns-companies-warranty-void-if-removed-stickers-are-flatly-illegal
>The 1975 Magnuson-Moss Warranty Act made it illegal for companies to force
(...)
 
I like my warranty better:
<http://802.11junk.com/jeffl/pics/drivel/slides/diploma.html>
 
--
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
tabbypurr@gmail.com: Apr 10 10:01AM -0700

On Tuesday, 10 April 2018 16:20:14 UTC+1, N_Cook wrote:
> Stretch over the active face of each cart with a drop of
> meths/denatured-alcahol in each balloon and store on a ledge with
> balloons dangling.
 
How many cycles are the printer to cart connectors rated for?
 
 
NT
makolber@yahoo.com: Apr 10 10:37AM -0700

> > Stretch over the active face of each cart with a drop of
> > meths/denatured-alcahol in each balloon and store on a ledge with
> > balloons dangling.
 
 
get a cheap laser printer and stop fussing with it
best thing i ever did
m
tabbypurr@gmail.com: Apr 10 10:51AM -0700


> get a cheap laser printer and stop fussing with it
> best thing i ever did
> m
 
+100
Ralph Mowery <rmowery28146@earthlink.net>: Apr 10 02:27PM -0400

In article <79889b83-c584-4f32-a4cd-c272aca112eb@googlegroups.com>,
tabbypurr@gmail.com says...
> > best thing i ever did
> > m
 
> +100
 
Same here.
 
I don't print much and got one of the Samsung laser printers for less
than $ 150. Don't recall the price, but it was one of the all in one
types. The HP ink is almost as much as that printer was for a set of
Black and color cartrages
 
Just printers are much less.
jurb6006@gmail.com: Apr 10 11:37AM -0700

What about when the heads are not integral to the carts ? If this one here cleans up OK it would be nice to avoid it in the future.
 
Note this is someone else's printer, I have a LASER. However it is in the basement and people might not want to go all the way down there to print, or when I get it back on the network, to grab their stuff out of it.
 
My other option would be to move it to a more central location but space is a problem, the thing is big.
Tim R <timothy42b@aol.com>: Apr 10 11:37AM -0700

On Tuesday, April 10, 2018 at 2:27:47 PM UTC-4, Ralph Mowery wrote:
> > > m
 
> > +100
 
> Same here.
 
Me too. Black and white is plenty for 99.9% of what I print. (mostly music) The rest I email to Walmart or Staples. I'm still on the first toner cartridge and it's been several years now. Of course those aren't cheap.
 
When the kids were in school we needed color for projects. Not any more.
tabbypurr@gmail.com: Apr 10 12:20PM -0700

On Tuesday, 10 April 2018 19:37:50 UTC+1, Tim R wrote:
 
> > Same here.
 
> Me too. Black and white is plenty for 99.9% of what I print. (mostly music) The rest I email to Walmart or Staples. I'm still on the first toner cartridge and it's been several years now. Of course those aren't cheap.
 
> When the kids were in school we needed color for projects. Not any more.
 
Reminds me of the times when I did 2 colour printing on a B&W printer. Quite glad they're over! Daisy wheel it was, one print in black, 2nd pass in black with italic daisywheel, 3rd pass with red ribbon.
 
 
NT
N_Cook <diverse@tcp.co.uk>: Apr 11 08:59AM +0100

On 10/04/2018 16:20, N_Cook wrote:
> Stretch over the active face of each cart with a drop of
> meths/denatured-alcahol in each balloon and store on a ledge with
> balloons dangling.
 
I should say this is for 3 print-offs on card per month for posters. I
doubt I'll be buying a colour laser m/c. I could see myself going to a
High St print shop once a month or perhaps getting 20 or so generic card
posters done at such a print shop and then overprint with my trusty
monochrome HP laser printer, just the changing details once a month. I
doubt the so-called cheap colour laser printers will allow 300gm/m^2 or
stiffer card through them.
gregz <zekor@comcast.net>: Apr 11 08:14AM

> Grab a couple of couple of large party balloons with the neck cut off.
> Stretch over the active face of each cart with a drop of
> meths/denatured-alcahol in each balloon and store on a ledge with balloons dangling.
 
My Canon I hardly use. It just uses ink even while off. Lucky I found cheap
cartridges takes 5.
 
Greg
Allodoxaphobia <knock_yourself_out@example.net>: Apr 10 10:10PM

On Tue, 10 Apr 2018 08:11:37 -0700, Jeff Liebermann wrote:
 
> I used 1,000,000 inches for outside diameter and still obtained only
> 776 ohms. 1,000,000,000 inches yielded 1035 ohms. I don't think it's
> going to make it to 2,000 ohms unless the coax cable is absurdly huge.
 
Almost sounds like an OLD ("slide rule") homework problem....
 
Jonesy
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: Apr 11 08:13AM +1000

On 11/04/2018 8:10 AM, Allodoxaphobia wrote:
>> 776 ohms. 1,000,000,000 inches yielded 1035 ohms. I don't think it's
>> going to make it to 2,000 ohms unless the coax cable is absurdly huge.
 
> Almost sounds like an OLD ("slide rule") homework problem....
 
**Correct. It was.
 
I thought someone would have come up with an answer before now. It's not
an overly difficult calculation.
 
 
--
Trevor Wilson
www.rageaudio.com.au
dplatt@coop.radagast.org (Dave Platt): Apr 10 04:42PM -0700

In article <fj4r7gF4b4oU1@mid.individual.net>,
 
>**Correct. It was.
 
>I thought someone would have come up with an answer before now. It's not
>an overly difficult calculation.
 
Well, just for grins... using the formula
 
Z0 = 138 log10 ((Dd/Dc)*(1/sqrt(eR)))
 
it seems to transform to
 
Dd = 10^(Z0/138) * sqrt(eR) * Dc
 
with Z0 = 2000, eR = 2.56, and Dc = .001, we'd get approximately
 
Dd = 10^14.5 * 1.6 * .001
 
Dd = 1.6 * 10^11.5
 
Dd = 5.1 * 10^11
 
or about half a trillion inches. That's if I didn't screw up
something using my slide rule (yes, I have a nice 10" Hemmi here at
my desk) or slip a decimal point somewhere along the way.
 
This seems a bit impractical for a coaxial cable. The
transmission-line cutoff frequency would be ridiculously low, and
construction of a matching section would be, well, interesting, to say
the least. And, I rather doubt that the classic formula is actually
applicable for impedances (and diameters) this large.
 
A solid cylinder of dielectric material this large would probably
insist on collapsing under its own gravitational self-attraction,
leaving you with a neutron star or a black hole.
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: Apr 11 10:03AM +1000

On 11/04/2018 9:42 AM, Dave Platt wrote:
 
> A solid cylinder of dielectric material this large would probably
> insist on collapsing under its own gravitational self-attraction,
> leaving you with a neutron star or a black hole.
 
**According to my calculations (performed ca. 1973) the answer is around
1.59 X 10^20 inches. My instructor ticked my answer as the correct one.
 
Or, for a more useful figure, 427 light years. That's one big coax. A
few hundred Metres would likely require more mass in it's construction
than exists in our galaxy (maybe the entire universe). I haven't tried
to work that out.
 
--
Trevor Wilson
www.rageaudio.com.au
jurb6006@gmail.com: Apr 10 01:05PM -0700

>"Far too complexicated. It's much easier to just place the router
inside a metal trash can for the duration of the test. "
 
Now why didn't I think of that ? But really, a large coffee can would do for most. Plus it is hard to find metal trash cans these days. We got a couple gut lack lids. Lids and grates from an old refrigerator make a grill. Or :
 
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTNm88AfG8q8YCL3ANBBrIF1Cmliu1HUy6T6tCJixQjSPHyBUPh
 
>"If ancient Windoze 98SE was that good, Windoze 3.1 must have been even better. "
 
Now that you mention it... lol.
 
>"Designing a product that works the way everyone expects, does
everything for everyone, and can be configured for everyone's personal idiosyncrasies, is unsurprisingly difficult. "
 
Yes but making it customizable goes a long way to that end. That is what seems to be disappearing. Typical cookie cutter - one size fits all mentality.
 
And I like a four on the floor, even more, five or six gears. In my family we learn(ed) to drive on a stickshift, it was kind of an unwritten rule. Remember the movie The Philadelphia Experiment ? The guy from the past gets into a car and says "Where's the cluthch ?". That's bullshit, automatic transmissions have been around for a very long time, in fact so were CVTs. The problem is they weren't all that good. The epitome of automatic transmissions was the THM 400. The thing had an actual analog hydraulic computer (ah) in the valve body. Unfortunately newer cars don't have room for the huge planetary set and torque convertor, and one way clutches for first and second gears. So they went downhill by necessity. The old THM 400 went fairly smoothly for a 5:1 ratio down to nearly 1:1. My Mother used to bitch about the newer cars insisting there was something wrong with the transmission, until she got used to it.
 
Not everything went downhill though, I admit. My first LASER printer was bigger than many newer car engines. Two guys to carry it and I used to carry stoves myself, no dolly or anything. Of course before me guys used to strap a 400 lb. fridge on their back and deliver it up to the fifth floor on stairs. I could never do that so I guess I am also somewhat "new and improved".
 
>"Mine is better.
 
I fail to see why but you know better than I. (I can rhyme on a dime)
 
>">Other than that I know nothing. (Sgt. Schultz voice)
 
That's a tolerable substitute for "Everything you know is wrong". "
 
Is that insinuation, snark or just a general comment ?
 
I have to admit the more I l;earn the more I find out how much I don't know. Also that I was wrong on some things. But then that is why I am on forums (fora ?) with intelligent comment rather than facebook n shit. I don't care what he said or she said or who's fucking whom or the liberal shit half these doofuses pander, while stifling true conservatism. I don't mean politicians considered cons, they are cons alright, con artists. I mean true conservatives who don't want to throw away everything we've built and turn this into a converted third world shithole like Zimbabwe.
 
So I guess y'all are stuck with me.
jurb6006@gmail.com: Apr 10 01:12PM -0700

>"To answer all your questions. If Google can't find it, it doesn't
exist. "
 
Have you heard of Shodan ? If so, what do you think of it ? I know very little because my IT knowledge is limited, but I tries it and actually found something. Didn't know what to do with it but found it. But they say it is dangerous so it is right up my alley. Just like this cupasoup I found that is hot and spicy. So much so that if you eat it fast your windpipe starts closing up. It has become one of my favorite smacks with one package, I will be buying a bunch of it in the future. My power saws have no guards on them either. No safety on my pistol either, I had to disable it because of a design flaw...
 
And there's another thing about this which may or may not apply. My laptop has a switch on the front to turn the wifi on and off. Even if there is no physical switch, shouldn't there be an easy way to disable it like in Control Panel or its own software ?
 
Or did the last "upgrade" remove that ?
Jeff Liebermann <jeffl@cruzio.com>: Apr 10 10:34AM -0700

On Tue, 10 Apr 2018 08:54:44 -0700, "David Farber"
>> My guess is that you dumped some toner on
>> the page from the toner cartridge.
 
>I don't know how to interpret your guess. :-)
 
The companies the refill toner cartridges tend to overfill the
cartridges and forget to empty the overflow bins. The result is that
a replacement cartridge will dump some toner onto the page or
mechanism. This eventually gets to the fuser roller, which melts the
toner onto the paper, rollers, gears, etc.
 
>Here are pictures of the left side of the rollers in the fuser assembly:
>http://webpages.charter.net/mrfixiter/Repair/HP-fuser-roller-1.jpg
 
The fuser sleeve is definitely burned and in need of replacement. You
can replace the sleeve yourself but make sure you smear some of the
included silicon grease under the sleeve.
 
>http://webpages.charter.net/mrfixiter/Repair/HP-fuser-roller-2.jpg
 
The red rubber pressure roller looks just fine. There's a little
black spec of melted toner imbedded into the red roller, which is
easily removed. I can't be sure, but it looks like you have some
scratch marks on the red roller surface. These are caused by melted
toner accumulating in places that are stationary relative to the
roller, and scrape the surface. At this point, it probably won't
cause any problems, except that the grooves tend to attract and retain
loose toner that eventually melts and sticks to the surface. Spin the
red roller to be sure it's clean.
 
>there are some inconsistencies in the color.of roller-1. Roller-2 looked
>rather normal except there seemed to be some waviness in the way it
>reflected light as I was looking at with a magnifying glass.
 
No clue on the waviness. I've seen that happen along with a wrinkled
roller surface. They usually go together. However, there's no
evidence of wrinkling in your photo. When it does wrinkle, it can't
be easily fixed and needs to be replaced. Note that the 4000 series
fuser rebuild kits usually include just the fuser sleeve, the red
rubber pressure roller, and some silicon grease.
 
>I decided to swap out the fuser with another LJ4000. I also created a
>"printer cleaning page" via the control panel and so far it's printing
>better.
 
Better as in there is still toner crud on the edges? Not good enough.
Did you tear it apart and blow the loose toner out of the guts? Black
toner on black plastic is difficult to see.
 
My guess(tm) is your replacement fuser assembly is only a little
better condition that the one you replaced. They're not very
difficult to take apart and clean, but it does take some care and
there are a few parts that are easy to break. Learn by Destroying
perhaps?
 
>Thanks for your reply.
 
Good luck.
 
 
--
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
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