Fuser Question


L

leonspinks

I'm looking at buying a used printer and they say they have replaced
the fuser which virtually takes the page count down to zero, is that
true? is there another part i should be more concerned about then the
fuser with a used printer?
he said the page count is at around 24k. it's a HP 1300n.

thanks
 
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T

Tony

I'm looking at buying a used printer and they say they have replaced
the fuser which virtually takes the page count down to zero, is that
true? is there another part i should be more concerned about then the
fuser with a used printer?
he said the page count is at around 24k. it's a HP 1300n.

thanks
The Fuser is the most likely expensive part to fail. 24K is not a big count for
this printer. Did he say why the fuser was replaced, I would expect it to last
much longer than 24K pages? It is not uncommon for a fuser to need replacement
early if there has been a paper jam in the fuser snd someone has poked around
with something when trying to remove the paper.
The only other parts that may need replacing are the pick-up roller, separation
pad and transfer charge roller (other than the cartridge of course) but I would
expect them to do at least another 100,000 pages, and they are not expensive
and you could replace them yourself. The service manual is readily available at
http://www.eserviceinfo.com/equipment_mfg/HP_22.html
(download all 3 parts and unRAR them) if you want to see how easy it is to
replace these parts.
Tony
MS MVP Printing/Imaging
 
L

leonspinks

Thanks. Really appreciate the note. I'll ask why it was replaced.
 
L

leonspinks

So I asked why the fuser was replaced after only 24K and this is the
reply I got:


"that is a very common problem with 1300 and 1200 and other printers in
that series
the fuser sleve starts to break up on one end
if you read a lot of the auctions for 1300 they will say the paper
crumples on one side or the print along the edge is fuzzy or a little
messed up
that is a problem with the fuser
this one has a whole new fuser not a new sleeve"


Does this sound right?

thanks.
 
T

Tony

So I asked why the fuser was replaced after only 24K and this is the
reply I got:


"that is a very common problem with 1300 and 1200 and other printers in
that series
the fuser sleve starts to break up on one end
if you read a lot of the auctions for 1300 they will say the paper
crumples on one side or the print along the edge is fuzzy or a little
messed up
that is a problem with the fuser
this one has a whole new fuser not a new sleeve"


Does this sound right?

thanks.
Almost, the fuser sleeve on these printers can shift laterally and break up.
This happens with "instant on" fusers in a number of models but I am surprised
that it happened so early. In any event there is nothing external to the fuser
that can cause it so having a new fuser should give the printer a good long
life. I have seen these printers print more than 150,000 pages before needing
any servicing.
Tony
MS MVP Printing/Imaging
 
L

leonspinks

Is the fuser sleeve and the fuser all one piece or are they seperate
pieces? Because if they are seperate then it seems to me that the
problem was with the sleeve, which he didn't replace, or am I wrong
about that?

Thanks for all the replies. Really appreciate it.
 
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T

Tony

Is the fuser sleeve and the fuser all one piece or are they seperate
pieces? Because if they are seperate then it seems to me that the
problem was with the sleeve, which he didn't replace, or am I wrong
about that?

Thanks for all the replies. Really appreciate it.
The sleeve is part of the fuser, it covers the heating element and is against
the pressure roller. When the pressure roller rotates (paper feeding through
the fuser) the sleeve is rotated by friction. If the fuser was replaced then
the sleeve was replaced as part of the fuser. If only the sleeve was replaced I
would have some doubt about buying the printer because some after market
sleeves are better than others, it seems he has replaced the entire assembly
which is the recommended action.
Tony
MS MVP Printing/Imaging
 
J

jasee

Tony said:
The sleeve is part of the fuser, it covers the heating element and is
against the pressure roller. When the pressure roller rotates (paper
feeding through the fuser) the sleeve is rotated by friction. If the
fuser was replaced then the sleeve was replaced as part of the fuser.
If only the sleeve was replaced I would have some doubt about buying
the printer because some after market sleeves are better than others,
it seems he has replaced the entire assembly which is the recommended
which is the recommended action.
It's actually easy to damage the sleeve, by simply pulling out a sheet if it
gets stuck on the way out of the printer without releasing the pressure
roller, I've seen this happen several times. This is the most likely part to
get damaged.
However according to HP, the whole fuser has a much shorter life in these
modern lasers compared to traditional lasers (not sure whether this is due
to the lamp not lasting as long or maybe the fuser oil leaking out or drying
up).
Fuser films should come with replacement oil.
 
T

Tony

jasee said:
It's actually easy to damage the sleeve, by simply pulling out a sheet if it
gets stuck on the way out of the printer without releasing the pressure
roller, I've seen this happen several times. This is the most likely part to
get damaged.
However according to HP, the whole fuser has a much shorter life in these
modern lasers compared to traditional lasers (not sure whether this is due
to the lamp not lasting as long or maybe the fuser oil leaking out or drying
up).
Fuser films should come with replacement oil.
Jasee
Newer HP laserjets probably do have a shorter fuser life than some of the older
printers, but 24,000 pages is woefully short of what should be expected from a
LJ1200 or LJ1300 engine. For instance the LJ1010/1012/1015/1020/1022 engines
have an anticipated fuser life of at least 60,000 pages and they are entry
level lasers. The 1300 should do more than that if well looked after.
The newest HP fusers do not use fuser oil, this included the LJ1300.
Tony
MS MVP Printing/Imaging
 
J

jasee

Tony said:
Newer HP laserjets probably do have a shorter fuser life than some of
the older printers, but 24,000 pages is woefully short of what should
be expected from a LJ1200 or LJ1300 engine. For instance the
LJ1010/1012/1015/1020/1022 engines have an anticipated fuser life of
at least 60,000 pages and they are entry level lasers. The 1300
should do more than that if well looked after.
It's the expected life of the fuser in particular I'm talking about which is
defined seperately somewhere in the data sheets. Can't seem to see it now
:-(.
I don't see why 'well looked after' has anything to do with a fuser. Unless
you count pulling out a sheet without releasing the rollers which is instant
death!.
Other than lack of fuser oil (as described below) it may simply be that the
very rapid heating and cooling of the element will eventually cause it to
fail more quickly than the traditional fuser. Of course the traditional
fuser had problems with the ptfe film which covered the fuser, however
replacing the fuser was usually a rare event.
The newest HP fusers do not use fuser oil, this included the LJ1300.
Well, if it doesn't, then it's the single exception and I don't see why it
shouldn't. Replacement of the fuser film is not a recognised repair by HP so
it's not described in any HP manual, however the same fuser film fits a
whole series of these lasers and if you find someone selling it you should
find him selling with it fuser oil (actually it's white grease) and I can
definitely state that at least two (probably all of the fusers in this
range) _do_ use fuser grease. It's probably that if you don't clean and
replace this, the replaced fuser film _will_ have a shorter life, so maybe
this is why some people say here that fuser film replacements don't last as
well?.

The replacement part for this particular model cost about £80 in the uk,
which is a substatial part of the second hand value of this now discontinued
printer. Aftermarket fusers are likely to just have the film replaced (it's
a simple job when you've got the fuser unit out). So who knows in this case?
 
A

Arthur Entlich

Well, if all that the printer was made up of was the cartridge and the
fuser, that would be a fair statement. HP laser printers use toner
cartridges which contain the drum and its assorted extra devices and
toners. However, the printer engine is a bit more complex. The
electronics (memory, EPROMS, power supply, laser, etc), the optics and
the mechanical (motors, gears, belts, rollers, etc.).

As a result, I would say the fuser makes up perhaps 15-20% of the parts
or expenses that could fail. The cartridge another 15-20%. That still
leaves over half not part of that.

Art
 
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T

Tony

jasee said:
It's the expected life of the fuser in particular I'm talking about which is
defined seperately somewhere in the data sheets. Can't seem to see it now
:-(.
I don't see why 'well looked after' has anything to do with a fuser. Unless
you count pulling out a sheet without releasing the rollers which is instant
death!.
Well looked after means to me -
1. Regular servicing, removing dust from the printer, ensuring the fan can move
air without obstruction etc.
2. Don't poke anything into the printer, if a paper jam does not come out of
any part of the printer using the manufacturers instructions then call on
somebody with the correct knowledge.
3. Using good quality paper, cheap is usually bad for lasers.
Other than lack of fuser oil (as described below) it may simply be that the
very rapid heating and cooling of the element will eventually cause it to
fail more quickly than the traditional fuser. Of course the traditional
fuser had problems with the ptfe film which covered the fuser, however
replacing the fuser was usually a rare event.
I am not convinced that "instant on" fusers last a lot less time than
traditional fusers, they may last a little less time but in my experience not
significantly.
Well, if it doesn't, then it's the single exception and I don't see why it
shouldn't. Replacement of the fuser film is not a recognised repair by HP so
it's not described in any HP manual, however the same fuser film fits a
whole series of these lasers and if you find someone selling it you should
find him selling with it fuser oil (actually it's white grease) and I can
definitely state that at least two (probably all of the fusers in this
range) _do_ use fuser grease. It's probably that if you don't clean and
replace this, the replaced fuser film _will_ have a shorter life, so maybe
this is why some people say here that fuser film replacements don't last as
well?.
Fuser oil and grease are different. The oil is applied to a fuser roller during
operation and needs to be replenished from time to time. Grease is a one off
application.
The replacement part for this particular model cost about £80 in the uk,
which is a substatial part of the second hand value of this now discontinued
printer. Aftermarket fusers are likely to just have the film replaced (it's
a simple job when you've got the fuser unit out). So who knows in this case?
Like most of commerce, there are good and bad aftermarket suppliers. The good
ones will do a lot more than just replace the film, they will replace the
gears, the pressure roller and bushes etc.Yes you are right, we don't know what
happened here.
By the way, HP's latest colour lasers definitely do not use fuser oil. They
claim that this results in a better quality output, my recent experience with
HP colour lasers supports this view.
Tony
MS MVP Printing/Imaging
 
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Hi,
I have a 1022 at work where someone has damaged the fuser.
how do I remove the old one.
regards
 
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Fuser Film Sleeve FAQ ,Can I interchange fuser sleeve for different models?
For the OEM GREY fuser sleeve, you can basically interchange them but you must alter the length to fit for the particular model you are replacing. However, for the LJ1000/1200/1220 you cannot interchange with other model because the diameter is a lot smaller.On the "Compatible fuser film sleeve" we do not recommend interchanging them since the LJ5L/6L model has thinner materials than the LJ5P/6P and LJ5000, besides the different in length wise.
please visited the website:http://www.skysheen.com/other/fuser-film-sleeve.html
 
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hello every body......
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about our fuser film sleeve:

The fuser film sleeves for size A4 can print 40000 pages of high quality in the ideal condition while sleeves for size A3 can print 80000 pages of high quality. In order to assure the stability and continuity of the quality, the fuser film sleeves surface spray material at present is all imported from Dajin Teflon of Japan . Polyamide membrane-acid gel as sleeve radicel is specially developed by CAS Chemistry Institute. Silicon grease for fuser film sleeves is whole fluorine lubrication silicon grease from American Ecoo so as to assure stable operation of fuser film sleeves in high speed and high temperature environment. No matter how the fuser film sleeves market will be, we are always putting the quality at the fist place. With this business belief, our fuser film sleeves have been sold to the whole nation successfully within a short time and extended to Hong Kong , Vietnam , Uzbekistan and most Middle East area. Now we are training a professional international trade sales team to distribute our fuser film sleeves to the broader European market and the North American market.
 

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