Question about Brother IntelliFAX 4100 Laser Fax

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Fuser unit how to replace fuser assembly

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Dont. the whole machine has to be taken apart. not worth the time and the fuser is 85.00 wholesale.

Posted on Jun 05, 2008


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Throughout print job HP laserjet 9050 print will be squigly/flakey and not fuse to paper properly

when you replaced the maintenance kit - did you replace the Fuser assembly as well - as this faultr is down to the pressure off the fuser roller to fix the image also there are two blue tabs that set the fuser unit to letter mode(less Pressure) these can be accessed without removing the fuser and are accessible from the left door. ensure the levers are set to paper and not letter. if the fuser is still not fixing the image correctly then a new fuser unit assembly is required as fuser units are non servicable.

Jan 08, 2014 | HP LaserJet 9050 Printer

1 Answer


The fuser assembly is not designed to be removed by an unqualified individual due to problems with high voltage and the sensitivity of the connectors on the bottom of the fuser unit.

Feb 14, 2013 | Office Equipment & Supplies

1 Answer

Paper jam in HP printer p3005n printer in between paper sensor+fuser assembly & toner

These printers have a problem with the bushings on the fuser, as they wear the gear drive moves away and you nolonger have drive to the fuser. HP has a kit, you replace the fuser and the gear driving it. At the same time, you should also replace the feed roller, both are simple to do with a phillips screw driver.
for your parts.

Jan 16, 2011 | HP LaserJet P3005n Printer

1 Answer

Error code C0511

This is an issue with the fuser unit replace the fuser unit assembly you can replace parts with in the fuser unit but only by a trained technician

Jan 11, 2011 | Konica Minolta DiALTA Di200 Copier

1 Answer

Erro 50.2

The 50.2 code on nearly all HP laser based machines including your M2727nf means you have a fuser error. The fuser unit is the assembly that heats up and "fuses" the toner onto the paper. There are a few things you can try including, power cycle the printer and see whether the code resets or try reseating the Fuser Unit. Neither of these will resolve the issue in most cases. Most of the time fuser unit replacement is necessary.
Here is a link for you to see pricing and a picture for your fuser unit. You may want to just buy your own fuser and replace it if your are mechanically inclined. If not you can have a local printer repair shop replace it for you. At least they won't rip you off on the price of the fuser unit.
Good Luck and Thank You for using Fixya.

Dec 23, 2010 | HP Laserjet M2727nf Multifunction Printer

2 Answers

Replacing fuser roll in hp4200n

No sorry you can only get the fuser assembly. You should be able to get hold of a refurbished one to keep costs down though.

Mar 23, 2009 | HP LaserJet 4200n Printer

1 Answer

Changing the fuser unit

1 Unplug the power cable.
2 Remove the paper delivery tray assembly
3 Remove two (2) screws from the right cover assembly
4 Remove the right cover assembly, carefully disengaging the catches
5 Unplug the control panel cable.
6 Insert a screwdriver to loosen the release tab on each side of the upper face cover
7 Remove the upper face cover
8 Remove four (4) screws from the upper cover
9 Lift up and remove the face-down cover
10 Remove the output tray by releasing the tabs.
11 Unplug the harness from the fuser motor
12 Open two (2) clips and remove one (1) clip to remove the fuser connector.
13 Unplug two (2) 3-pin optical encoder wires
14 Unplug the red high-voltage bias wire.
15 Remove the thermistor wire.
16 Remove the cables from the wiring harness.
17 Remove three (3) screws from the fuser chassis.
18 Gently rocking if necessary, roll the fuser forward to remove.
Use the following procedure to replace the fuser.
1 Align the fuser tabs with their respective holes.
2 Complete replacement by following steps 1 through 18 above in reverse order.
NOTE When replacing the right cover, align the tabs on the upper edge of the right cover
and lower edge of the face-down cover with their respective slots.
Hope this helps

May 16, 2008 | HP Color LaserJet 2600n Printer

1 Answer

Fuser temp error

To test fuser out of circuit make sure lamp and thermal fuse are not open circuit, and thermister is neither open or shorted

Fuser repair procedure from tec manual.
Fuser Failure (U4-1, U4-2, & U4-3)
Switch off printer main power. Remove the Fuser Full Cover so you can observe the Heat Rods. Switch on printer main power and observe the ends of the Fuser Assembly. The Heat Rods glow.?
Go to step 5.
2 Replace the Printer Engine Controller PWB (REP 4.10.6). The error message reappears.
Problem solved.
3 Replace the Fuser Assembly The error message reappears.
Problem solved.
4 Check for a broken wire or a loose connection
between components
5 Measure the AC voltage between J23-2 and J23-6 on the AC Driver PWB. There is 110VAC (or 220VAC if the printer is the 220VAC model) between J23-2 and J23-6.
Go to step 7.
6 Replace the Fuser Assembly (REP 4.7.1). If the problem persists, replace the Printer Engine
Controller PWB (REP 4.10.6).
7 The Fuser cycles up and down.
Replace the Printer Engine Controller PWB
8 Measure the voltage between P401-1 and P 401-4 when the Fuser Fan cycles up and down. There is 24VDC between P401-1 and P401-4 when the fan is rotating and 0VDC when the fan is off.?
Replace the Printer Engine Controller PWB
9 Replace the AC Driver PWB

Please rate solution to your question "How can I check that new Fuser unit is ok?"

Jan 10, 2008 | Xerox DocuPrint N32 Laser Printer

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