Flash point, laser fuser and lubrication

From: R. D. Davis <rdd_at_rddavis.org>
Date: Tue Apr 13 10:48:49 2004

Last night, I made the mistake of putting some 3-in-1 oil (yes, I
know, it's not a good lubricant) in the bushings around the teflon
roller (that the heater lamp runs through) in my Laserjet II when I
disassembled the fuser to replace a worn 14-tooth gear. I should have
done a more thorough disassembly and used grease rated for use with
high temperatures... anyway, what concerns me is the low flash point
for the 3-in-1 (if what's in the can I used is the same as the spray;
the spray is all I could find data for, flash point about 101 degrees
F).

When the printer warms up for a few seconds, there's some smoke. I
was thinking that it might just smoke a bit and then eventually stop
smoking, but I remember, all too well, the time I accidentally spilled
some motor oil on a hot exhaust manifold when I stopped at a service
station on the way to pick up my PDP-11/73 system years
ago... fortunately a rag was able to be used to put out the flames,
and I do mean big bright yellow flames, quickly before any damage was
done. Is this 3-in-1 oil likely to do the same thing in the fuser
assembly? If it wasn't raining outside, I'd be tempted to put said
oil on an old fuser assembly with a scratched up roller, with all
useable parts removed, take it outside, apply power to it, and see
what happens.

-- 
Copyright (C) 2003 R. D. Davis The difference between humans & other animals: 
All Rights Reserved | My VAX | an unnatural belief that we're above Nature & 
www.rddavis.org | runs VMS & | her other creatures, using dogma to justify such
410-744-4900 | doesn't crash!| beliefs and to justify much human cruelty.
Received on Tue Apr 13 2004 - 10:48:49 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:36:29 BST