Question about Panasonic PanaFax UF-8000 Laser Fax

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Replacing fuser assembly

Can I have instructions on how to replace it?

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  • Anonymous Feb 18, 2009

    what do you have to remove before you replace fuser unit?



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Even the manual won't be enough to do this job.
Take off ALL covers and the Document Feeder, then write back to me for further disassembly instructions.

The fuser comes out through the top of the machine.

Posted on Sep 08, 2008

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Here is the operators manual for your fax if you need it; Instructions for changing the fuser assy will be available only in the service manual which is not available online but can be purchased at; 800-833-9626 or Hope this helps :)

Posted on Apr 19, 2007


Fully agree with TECH 435 plus do not forget to reset the fuser in service mode when changed.

Posted on Oct 15, 2008

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One the fuser does not come out though the top of the machine but the rear. but you do have to rip it down to the bare bones almost to get it out. but if you do try this your self be very care full of the ribbon cables near the fuser . if you damage those its take along time to fix them.

if you want to try it i can help, but i will asume no responsibility if something goes wrong.

good luck

Posted on Sep 10, 2008

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Part of printed copy is washed out ricoh aficio sp c210sf

Seems its fuser assembly fault.
Fuser assembly is a part to fix toner image permenentely with the help of hot rollers on media. The temparature varie depends on model, in case the temparature not reachess specified level you may get image fixation problem, the same what you are facing. Replace fuser assembly.

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I replaced a black toner after that the is only displaying printing cool down mode and not printing help to know the problem

if the problem started only after replacing the toner, u can look if there is something went into the printer while replacing the toner. open the door & look carefully for any object/dust inside the printer.
may be there may be damage done during replacing the toner. try to replace a new toner & watch the results. printing cool down mode indicates that fuser assembly which is inside of printer is hot & will take time to cool down. there may be a problem in that fuser assembly.

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My printer is displaying the following message - 122.03 Service Fuser Error. Can you tell me what this means?

This means the fuser unit is defective and needs to be replaced.

Depending on your location you need one of the following parts
40X5437 Fuser assembly, 115 V
40X5438 Fuser assembly, 230 V
40X5439 Fuser assembly 100 V

Replacing the fuser is not very difficult but you will have to follow certain steps.
1. Remove the right cover assembly.

2. Remove the left cover.

3. Disconnect the two-wire fuser cable from the LVPS.

4. Position the fuser cable so that it can be pulled through from the front of the printer, and guide the cable through to the front.
Warning: Be careful not to damage the cable by pulling too hard or cutting the cable insulation.

5. Remove the screw and grounding washer (1) on the right side of the frame.
Note: Be careful not to lose the grounding washer.
6. Disconnect the thermistor cables (2).

7. Remove the exit deflector and bin full sensor flag

8. Remove the bin full sensor

9. Unhook the springs (3 and 4) from both sides of the fuser.


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Fuser error 50.9 came up when we turned the printer on what does that mean??

normally this error means you have a bad fuser assembly. These items are normally a customer replaceable part. If replacing the fuser assembly does not correct the error code you may have a bad power supply board.

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Most likely the fuser gear is worn. The noise is prominant in the right side toward the back I am assuming.
You can replace the heat roll drive gear itself, but honestly I would recommend replacing the entire fuser assembly. It is probably very very tight and would wear another gear out quickly.
You want to get that replaced before the drive gear on the main motor assembly wears out. It would not rewuire replacing that entire main drive assembly, But it is a real difficult part to replace.
Go onto google and do a search for The Parts Drop. It will be the first item to come up. CLick it on and call and talk to Britt.
He will have what you need for a reasonable price.
if you go that route and need instructions to replace that part. let me know. Its not very difficult.

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if this happens every time you need to replace the fuser. but there is a possibility it could be the main gear drive assembly, 9 times out of 10 it's the fuser. a gear on the fuser usually breaks a few teeth. the fuser is very easy to replace and is a part that will eventually need replacing on all printers.

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