Re: HP printer trouble

On 2025-04-19 23:29, Jeff Liebermann wrote:

On Thu, 17 Apr 2025 22:11:20 +0100, Jeff Layman <Jeff@invalid.invalid>
wrote:
 

You could try that tonerbuzz tip of soaking the centre of a sheet of
paper with alcohol and running it a few times through the printer. No
disassembly required.

 No.  Not alcohol.  What makes rubber useful is that it is ductile
(easily stretched without breaking or lowering in material strength).
If you "wash" rubber with alcohol, the oils that give rubber its
ductile nature will evaporate, cause the rubber to dry out, and
eventually make it hard as a rock.  Gasoline does the same thing to
fuel lines but takes years for the rubber to harden.
 If you want to use chemistry instead of just replacing the part, I
suggest some made for the purpose:
<https://www.google.com/search?q=printer%20rubber%20roller%20restorer&udm=2>
For example:
<https://www.precisionroller.com/category/rubber-rejuvenators.htm>
I stuff I use is ancient and no longer sold.  It's 70% xylene (banned
in California) and 30% wintergreen oil (methyl salicylate).  The
xylene causes the pores in the rubber to enlarge.  The oil fills the
pores.  The xylene evaporates at a moderately fast rate, leaving the
oil behind inside the rubber roller.  As long as the rubber isn't
damaged or polished smooth, the rejuvenated rubber should last a few
years (not as long as new rubber).

If I search "Rubber Rejuvenators" in Amazon.es, I get products for the car instead.
[...]
Got one, but it is "not available". <https://www.amazon.es/dp/B0BL85QPZC>. It is the only one Google finds.
Got another, from the first link you posted, also not available: <https://www.amazon.es/dp/B001AYVSCO>
Searching for the translated term in google instead "limpiador rodillo de impresora"... finally, found something that does ship, although not from Amazon:
<https://www.amazon.es/Ewent-EW5617-Pulverizador-Limpieza-Transparente/dp/B07FYT8CF4>
Gosh, handling and shipping is more expensive than the product itself. I'll keep seeking.
--
Cheers, Carlos.