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Home > Archive > alt.certification.a-plus > April 2005 > Problem with LaserJet 4M...rollers?
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Problem with LaserJet 4M...rollers?
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| Hi,
I picked up a LaserJet 4M printer someone was throwing out. It had
the accessories like envelope feeder and lower cassette, so I couldn't
pass it up. My very first laser printer 
The problem seems to always be a paper jam just after 2/3 of the text
is applied to the paper. The paper jams about 2/3 of the way down the
paper, so about 2/3 of the test page gets transferred to paper before
jamming. I thought it might be the fuser roller (or one of the
easier-to-replace rollers) that's the problem, but I'm not sure. Is
cleaning the fuser roller a standard maintenance procedure?
A separate problem comes when booting up the printer. The motor makes
a really loud grind, then the printer entirely shuts down. However,
if I leave it for a couple minutes, it starts back up, and after the
motor runs a few more times everything sounds fine....except for the
first problem. Are they related?
Thanks very much,
Dan
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"Dan" <jasdfosd@asjedfoi.com> wrote in message
news:29s3s0p12g5pvj2ibn38g8jqi
gfe99jpv8@4ax.com...
> Hi,
>
> I picked up a LaserJet 4M printer someone was throwing out. It
had
> the accessories like envelope feeder and lower cassette, so I
couldn't
> pass it up. My very first laser printer
>
> The problem seems to always be a paper jam just after 2/3 of
the text
> is applied to the paper. The paper jams about 2/3 of the way
down the
> paper, so about 2/3 of the test page gets transferred to paper
before
> jamming. I thought it might be the fuser roller (or one of the
> easier-to-replace rollers) that's the problem, but I'm not
sure. Is
> cleaning the fuser roller a standard maintenance procedure?
>
> A separate problem comes when booting up the printer. The
motor makes
> a really loud grind, then the printer entirely shuts down.
However,
> if I leave it for a couple minutes, it starts back up, and
after the
> motor runs a few more times everything sounds fine....except
for the
> first problem. Are they related?
On the older LJ 3, One of the gears on the fuser siezes up
causing a grinding noise during operation. Taking it apart and
carefully re-drilling out the hole in the gear has solved the
problem for me. It could be that you have a similar problem.
Bob
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"Dan" <jasdfosd@asjedfoi.com> wrote in message
news:29s3s0p12g5pvj2ibn38g8jqi
gfe99jpv8@4ax.com...
> Hi,
>
> I picked up a LaserJet 4M printer someone was throwing out. It had
> the accessories like envelope feeder and lower cassette, so I couldn't
> pass it up. My very first laser printer
>
> The problem seems to always be a paper jam just after 2/3 of the text
> is applied to the paper. The paper jams about 2/3 of the way down the
> paper, so about 2/3 of the test page gets transferred to paper before
> jamming. I thought it might be the fuser roller (or one of the
> easier-to-replace rollers) that's the problem, but I'm not sure. Is
> cleaning the fuser roller a standard maintenance procedure?
>
> A separate problem comes when booting up the printer. The motor makes
> a really loud grind, then the printer entirely shuts down. However,
> if I leave it for a couple minutes, it starts back up, and after the
> motor runs a few more times everything sounds fine....except for the
> first problem. Are they related?
>
> Thanks very much,
> Dan
Back in the days when I worked on printers, which I don't now, for which I
often give thanks, we always cleaned the rubber rollers of any printer that
we serviced. The liquid we used was only to be used for that and it had a
lot of citrus oil in it. I can't find the stuff any more, our supplier is
completely gone from the Internet but the closest thing I can find is the
gum off stuff that is made to remove labels.
AG
| |
|
| Platenclene, it's also useful for pinch rollers in VCR's and tape players.
http://www.google.co.uk/search?hl=e...enclene&spell=1
--
Kenny
"AG" <atenor@email.com> wrote in message
news:41c22764$0$19028$4c5eba9e
@news.getnet.net...
>
> "Dan" <jasdfosd@asjedfoi.com> wrote in message
> news:29s3s0p12g5pvj2ibn38g8jqi
gfe99jpv8@4ax.com...
>
> Back in the days when I worked on printers, which I don't now, for which I
> often give thanks, we always cleaned the rubber rollers of any printer
that
> we serviced. The liquid we used was only to be used for that and it had a
> lot of citrus oil in it. I can't find the stuff any more, our supplier is
> completely gone from the Internet but the closest thing I can find is the
> gum off stuff that is made to remove labels.
>
> AG
>
>
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| Mark in NJ 2005-04-06, 2:25 pm |
| Use Lighter Fluid...
It cleans better than any citrus product I've used,
It leaves no oily residue, and the smell doesn't get on your nerves as
quick.
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| Darn. Now that you've given me that info I won't have the excuse that I
can't get the stuff any more.
I still refuse to work on printers. It's not my job man.
AG
"Kenny" <me@privacy.net> wrote in message
news:32g19qF3lvpiaU1@individua
l.net...
> Platenclene, it's also useful for pinch rollers in VCR's and tape players.
> http://www.google.co.uk/search?hl=e...enclene&spell=1
>
> --
>
> Kenny
>
>
>
> "AG" <atenor@email.com> wrote in message
> news:41c22764$0$19028$4c5eba9e
@news.getnet.net...
> that
>
>
| |
| Rightard Whitey 2005-04-06, 2:25 pm |
| Dan wrote:
> Hi,
>
> I picked up a LaserJet 4M printer someone was throwing out. It had
> the accessories like envelope feeder and lower cassette, so I couldn't
> pass it up. My very first laser printer
>
> The problem seems to always be a paper jam just after 2/3 of the text
> is applied to the paper. The paper jams about 2/3 of the way down the
> paper, so about 2/3 of the test page gets transferred to paper before
> jamming. I thought it might be the fuser roller (or one of the
> easier-to-replace rollers) that's the problem, but I'm not sure. Is
> cleaning the fuser roller a standard maintenance procedure?
>
> A separate problem comes when booting up the printer. The motor makes
> a really loud grind, then the printer entirely shuts down. However,
> if I leave it for a couple minutes, it starts back up, and after the
> motor runs a few more times everything sounds fine....except for the
> first problem. Are they related?
>
> Thanks very much,
> Dan
>
>
The motor is probably failing and can't pull the paper all the way
through the paper path. I would toss it. You can get a serious burn form
the fuser and eye damage from the laser.
| |
| Barry Watzman 2005-04-06, 2:25 pm |
| I would not clean the roller with any chemical. The fuser rollers have
a silicone coating to keep the paper from sticking to the roller, and if
you remove it you will have a lot of problems.
AG wrote:
> "Dan" <jasdfosd@asjedfoi.com> wrote in message
> news:29s3s0p12g5pvj2ibn38g8jqi
gfe99jpv8@4ax.com...
>
>
>
> Back in the days when I worked on printers, which I don't now, for which I
> often give thanks, we always cleaned the rubber rollers of any printer that
> we serviced. The liquid we used was only to be used for that and it had a
> lot of citrus oil in it. I can't find the stuff any more, our supplier is
> completely gone from the Internet but the closest thing I can find is the
> gum off stuff that is made to remove labels.
>
> AG
>
>
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|
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:41C3BE97.3010409@neo.rr.com...
>I would not clean the roller with any chemical. The fuser rollers have a
>silicone coating to keep the paper from sticking to the roller, and if you
>remove it you will have a lot of problems.
>
We always just replaced fuser rollers. It was the rubber rollers that we
cleaned. I guess I really didn't make that clear.
AG
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| ALBERT C. GOOD JR. 2005-04-06, 2:27 pm |
| For cleaning the rollers, I would suggest that you god to a commercial
electronics distributor and ask what is recommenced for pressure rollers ad
belt on tape machines. I used to use alcohol isporoponal.
As for the possibility of it being the motor is concerned I would check that
shaft for side motion.
Motors have a habit of the rotor rubbing and catching to the stator when the
bearings are worn. Replacing bearings if they are roller bearings is not
that difficult a task, nor is rebuilding other parts of the motor. Just use
commonsense and take your time and ask lots of questions.
Albert
"Rightard Whitey" <eelder1@tampabay.rr.com> wrote in message
news:zVLwd.125150$8G4.52878@tornado.tampabay.rr.com...
> Dan wrote:
>
> The motor is probably failing and can't pull the paper all the way
> through the paper path. I would toss it. You can get a serious burn form
> the fuser and eye damage from the laser.
>
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| Dan,
Most likely it's the small rubber rollers on the back about half way up and
the ones on the top. If the paper is jamming into a fan-fold pattern, then
this is most likely the problem and the cure could be a simple cleaning with
some isopropyl alcohol and Q-tips.
You may want to give this site a look
http://www.hp-depot.com/default.asp...wkits&model=all
Bob S.
>
> Albert
> "Rightard Whitey" <eelder1@tampabay.rr.com> wrote in message
> news:zVLwd.125150$8G4.52878@tornado.tampabay.rr.com...
>
>
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| Michael 2005-04-06, 2:28 pm |
| BobS wrote:
>
> Dan,
>
> Most likely it's the small rubber rollers on the back about half way up and
> the ones on the top. If the paper is jamming into a fan-fold pattern, then
> this is most likely the problem and the cure could be a simple cleaning with
> some isopropyl alcohol and Q-tips.
>
> You may want to give this site a look
> http://www.hp-depot.com/default.asp...wkits&model=all
>
> Bob S.
Sorry. Can't see O.P.
I futzed a LJ-4 out of the solid fan-fold jam problem by removing the
final set of rollers, cleaning them, and then >gently< drawing #300
sandpaper >across< each one just enough to knock off some of the shiny
surface. Then wash again, thoroughly, and wipe dry. I used ethanol
because run-of-the-mill isopropanol ("rubbing alcohol") has oil in it.
Those rollers should have been replaced, but at the time I didn't know
that replacements were available, and the printer's owner needed the
printer to work ... NOW.
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