4000 Fuser Rebuild
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4000
Fuser Sheeve Rebuild Instructions |
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Models:
4000 | 4000n | 4000tn | 4000dtn | 4001mfp
NOTE: These instructions are simply a guide.
First Choice assumes no responsibility or liability for any
damages caused by user while working on their printer during
this repair.
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Tools Required |
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Small flat blade screwdriver
• Phillips screwdriver
• Latex glove
• lint free water dampened cloth |
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| Step
1 |
Begin
by letting the fuser assembly cool if it was just removed
from the printer; try to work on a protected surface that
won’t get harmed by scratch and or grease. Work in
a well lit environment.
NOTE: This procedure is only
for fusers that produce poor copy quality. Fusers that are
in service error 50.X must be replaced. A fuser sleeve will
not cure this problem.
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| Step
2 |
Remove
the top two screws which hold the cover plate down. Screws are
indicated in picture. |
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| Step
3 |
Use
your flat blade and release the two outer release clips. There
will be one on the left side and one on the right side. This
will cause the top cover to spring open and can be removed. |
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| Step
4 |
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Here is a view with the cover
plate removed. Now you can identify and remove the two brown
gears. |
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| Step
5 |
Remove
the single connector on the left side by pinching the connector
and sliding it off the element shaft. |
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| Step
6 |
Remove
the fuser gear cover. There will be two screws as identified
in the picture. |
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| Step
7 |
Remove
gears as picture indicates. |
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| Step
8 |
Unplug connector similar same as the left
side in step 5
At this time remove the fuser element by lifting upwards.
Be sure to rest it in a safe place.
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| Step
9 |
With
the fuser element out, remove the black collar located on
the left side of the element on the side that does not have
a wire harness still attached. This can be achieved by sliding
it straight off the shaft. There may be a small black plastic
lock that needs to be depressed as you remove the collar.
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| Step
10 |
Slide
off the old fuser sleeve as shown in the picture |
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| Step
11 |
WARNING:
We are showing a bad element as a visual. Fuser elements
are extremely fragile and can crack very easy. Be sure to
be very gentle and cautious when working with this area
of the fuser.
Fuser
elements are made of porcelain and/or ceramic. They crack
easy. If your fuser looks like this when you removed your
sleeve, then you must purchase a replacement fuser.
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| Step
12 |
You
may clean your fuser element if it has heavy toner contamination
the element pictured. Use a rag and dampen it with a little
water. You can also use a credit card or something similar
to etch away the toner build up and then use the dampened
rag. |
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| Step
13 |
This
picture illustrates a clean element. |
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| Step
14 |
At
this time prepare your fuser element for lubrication. Use
our fuser care kit or polytetrafluoroethylene. This lubrication
is what the OEMs use when the fuser is manufactured new. It
will ensure your new sleeve survives its life cycle. Without
using the correct lubrication, the fuser sleeve is at risk
of seizing against the fuser element. |
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| Step
15 |
Using
a glove or a swab, saturate the fuser element completely from
side to side as seen in the picture. Try to work in and around
the element. Don’t worry about getting a little messy. |
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| Step
16 |
You
may also at this time lightly rub the lower pressure roller.
Clean it using a dampened rag. The lower pressure roller is
made up of a soft rubber core with a non stick coating, which
functions as a cleaning roller. The lower pressure roller
picks up debris and deposits it on the back of your paper;
the deposits are typically so small that it is not noticeable. |
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| Step
17 |
Picture
shows clean lower pressure roller. |
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| Step
18 |
At
this time install the fuser sleeve over the now lubricated
element. As you install your new sleeve, only handle the
edges of it.
WARNING:
Install the new sleeve as the picture shows with the black
band as the same direction as the black rubber grommet on
the lower pressure roller. This is actually a grounding
contact and must be installed correctly.
You
can also plug the single connector in at this time. Be sure
to slide it all the way on.
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| Step
19 |
Reinstall
the top cover plate in the same fashion it was removed from
step 2 |
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| Step
20 |
Reinstall
the two brown drive gears and reinstall the gear cover plate
with the two screws. |
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| Step
21 |
Install
the two screws located on the top cover if you have not already. |
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| Step
22 |
Final
assembly is complete at this time. You can reinstall your
fuser.
NOTE: If you get any type of
50.X fuser errors, check your wiring connectors to make sure
they have been plugged in correctly.
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