20 Jan
2006
20 Jan
'06
9:56 a.m.
From: "Philip Pemberton" <philpem at
dsl.pipex.com>
In message <200601200513.AAA06586 at Sparkle.Rodents.Montreal.QC.CA>
der Mouse <mouse at rodents.montreal.qc.ca> wrote:
Hi
I had a similar problem that was buildup of toner on the drum.
It would not completely erase. I tried just about everything and
then finally changed the tone/drum unit. This fixed it. It seems
that the drums get old just sitting. Like his, it would print
the first sheet OK and then get worse as I printed more.
I'd suspect that one could bake the drum and it would work
better again. My guess is that it is moisture getting into
the drum surface. The 3si uses the organic drum.
Still, he should do a general cleanup of things.
Dwight
Letting the printer sit will improve matters
somewhat, but only
somewhat; recently, I've even had the first page come out with some
streakiness.
I'd guess it could be the erase lamps for the photoconductor drum. If they're
not working properly (or firing then going out) then you might end up with
this fault. I'd defeat the interlocks and cartridge sensors, then cover the
laser aperture and see if the erase lamp comes on before the paper starts
feeding. IIRC the procedure is in the service manual.
Failing that, it could be a dirty transfer wire, or maybe a dirty (or worn)
drum cleaning wiper.
22 Jan
22 Jan
9:26 p.m.
I had a similar problem that was buildup of toner on
the drum. It
would not completely erase. I tried just about everything and then
finally changed the tone/drum unit. This fixed it.
I was hoping to avoid that; the toner carts are mildly expensive and
slightly inconvenient to get. (Hmm, I may have a NIB one sitting
around somewhere, come to think of it.)
Still, it's definitely helpful to know that that fixed one case of the
problem.
I'd suspect that one could bake the drum and it
would work better
again. My guess is that it is moisture getting into the drum
surface. The 3si uses the organic drum.
I was actually thinking it might be too *dry* air, because it started
when winter struck, with its tendency to dry air indoors.
Still, he should do a general cleanup of things.
Any more specific suggestions? For example, any precautions to take
when cleaning the drum in the toner cart? Low light level? Paper
towel? Lint-free cloth? Do it in a humid atmosphere? Bake it in a
vaguely warm oven for a few hours first? Anythiing else I should be
sure to clean?
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23 Jan
23 Jan
3:52 p.m.
Any more specific suggestions? For example, any
precautions to take
when cleaning the drum in the toner cart? Low light level? Paper
towel? Lint-free cloth? Do it in a humid atmosphere? Bake it in a
vaguely warm oven for a few hours first? Anythiing else I should be
sure to clean?
My experience suggests that the coating on the drum is _extremely_
delicate, and I'd avoid cleanig it if possible.
Work in a low light level sure (normal room lighting should be OK, but
I'd put the drum inside an opaque container once you've got it out, while
you're cleaning the other parts). I'd clean the wiper blade and corrona
wires, and anything else that looks as though it could do with it.
If you really have to clean the drum, I'd use a very soft cloth, I think.
-tony
6861
days inactive
6864
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2 comments
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