Re: HP printer trouble

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).


--
Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann      AE6KS    831-336-2558