Question about Brother MFC-8440 All-In-One Laser Printer

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Error 6B Looking to clear error 6B on a MFC-8440. This problem started after a voltage dip.

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  • Anonymous May 06, 2009

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6B is a self diagnostic issue. it seems the power supply may have just bit the dust. 

Posted on May 01, 2008

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6b error what part replac fused unit or power supply


Your fuser unit is faulty, could be due to the thermistor in it.

Oct 17, 2014 | Brother MFC-8440 All-In-One Laser Printer

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Brother MFC 8440 showing error code MACHINE ERROR 6A or 6E


Hi.

Both errors are signalling a temperature problem in fuser assembly.

The solution below applies to several Brother models. Depending on the model, the reset procedure may be different.

Brother Error 6A means that the thermistor located in the fuser assembly did not detect that required temperature had been reached in valid time.

First you can try entering in maintenancemode and clearing the error. If that does not work, that means that the thermistor, the lamp, or the whole fuser assembly must be replaced.

Error 6E is similar. 6E is diplayed when thermistor detect that the fuser temperature is not going up at least at 2°C every for 5 seconds.

As for 6A, first reset the code. If the error does not clear the fault can concern the thermistor, the fuser lamp or the power supply to the fuser assembly.

To reset the error code follows these steps:

1. Press MENU *,2,8,6,4 . Press keys within 2 seconds.
2. The machine beeps and display shows “maintenance".
3. Look for Init or Reset on menu, and enter the corresponding parameter.
4. To exit press 99.

This procedure above usually works on MFC-8xxx model. On other models you may need to do the following:

1) Unplug machine.
2) Hold down menu key. Plug in machine.
3) Release menu key.
4) Enter 91
5) Enter 99

or:

1) Disconnect the printer power cord.
2) Hold down the menu key while plugging in machine at same time.
3) Enter 99 while holding down menu key
4) After menu says " wait" push the stop/exit button to get out of the maintenance mode.


If that does not work, it means that the fuser assembly must be replaced. Here the part for MFC-8440: Genuine Brother Mfc8440 Fuser Assembly.


Regards.

on Apr 08, 2010 | Brother MFC 8440 All-In-One Laser Printer

1 Answer

MACHINE ERROR CODE 6B ON BROTHER MFC-8440 ?


Hi,

A6 error means the CIS unit is defective and needs to be replaced.

Unfortunately this can sometimes cost more to replace then the machine itself

Thank you


Regards,
Suhail

May 16, 2012 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

WHEN I TURN ON MY MACHINE BROTHER MFC 8440 I SEE ON THE SCREEN ERROR MACHINE 6A I NEED A SOLUTION


Error factor: Heater warming-up timeout error.
(Heater does not reach 60°C within 11 sec.)

Check: • Thermistor ASSY
• Halogen lamp

Jan 08, 2011 | Brother MFC-8440 All-In-One Laser Printer

2 Answers

Brother mfc 8440 error 78


This refers to a error with the fuser temperature you need it repaired by a service technician. Parts can be as little as $15 for the thermistor sensor or as much as $100 for a new fuser.

Jun 07, 2009 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

Machine errore 6e brother 8440 mfc


You have a fault with either the Halogen lamp or the Power Supply PCB, basically the heater in the printer is not heating quick enough.

Mar 21, 2009 | Brother MFC8440 Remanufactured Laser...

1 Answer

Brother mfc 8440


This is commonly a problem with the left hinge being broken on the lid where the adf is. Check that and if it is broken i can give you a part number.

Good luck!

Sep 03, 2008 | Brother MFC8440 Remanufactured Laser...

2 Answers

Replacing Brother MFC-8440 Fuser


To remove the fuser - remove the tray at the bottom and the back tray (4 screws, 2 either side) lift out the phone line box on the right (looking from the back - 2 screws) and swing it out of the way (careful as cable isn't too long) 2 screws either side of the fuser (long black object at the bottom) unplug the halogen lamp (white plug on left) and small 5 wire plug on right, and lift out fuser unit.

Aug 25, 2008 | Brother MFC-8440 All-In-One Laser Printer

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