Question about Brother MFC 420CN All-In-One InkJet Printer

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Brother MFC 420CN error message DF

I have a brother MFC 420CN that keeps turning on and off every minute or so. I managed to get the error message DF to come up, and was wondering if anyone knows what problem that reffers to? Thanks

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Re: brother MFC 420CN error message DF

Did you had lightning strikes or a high tension the days before? DF means that the faxmodem which is placed on the pcb is in disorder. The pcb has to be changed (sparepart is more expensive then a new mfc!)

Posted on Oct 03, 2007

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Brother MFC-420cn Message appears,

Hi you can try this is for your error and please call back and let us know if it worked for you so others can do the same.Solution:
  • Machine off
  • Switch on the machine while holding down the “menu”button until all the leds are flashing on/off. Now you are in “maintenance” mode.
  • Press 80
  • Press the “mono start” button several times until you see “purge: xxxx”
  • Press “2783” in order to reset the purge counter. You will see: “purge:0000”
  • Press the "stop" button.
  • Press “99” to exit the maintenance mode.
All the Best: Pineworks

Jan 30, 2010 | Brother MFC 420CN All-In-One InkJet...

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Black ink on my Brother MFC-420CN is faint and streaky

You said you replaced the cartridges. Were they Genuine Brothers' Cartridges?

My Brother MFC-240C, does not like Generic Printer Cartridges. That sounds like your problem. Also I had with Brother's was problem with Color. Color that should be Yellow, will turn out Green, or Blue Green, etc. The Generic Cartridges, also printed lines thru the words. That's what the Companies do., so they can keep selling the ink cartridges.

Some Printers, are able to use Generic, but you have to fill them up yourself and I heard, quite MESSY, or Take them to have them filled.

So I learned, thru trial and error, that you must use the ORIGINAL Genuine Cartridges for the PRINTERS.

This is the only advice I can give you. If you find this helpful, pls rate me.

Thanks and Good Luck :0)

Jan 03, 2010 | Brother MFC 420CN All-In-One InkJet...

2 Answers

I have a brother mfc-420cn. I am getting a unable to clean messa

Do you mean "unable to clean"?If it this follow this instruction.
Unplug the printer from power cord.Press and hold the "menu" button, then plug the device.You'll see on the LCD screen a "machine error" code.If this code is 40,41 or 4F the print head is defective.If the error is 50 or 51 there is error in Purge unit and printer require service.If the error is 46 the waste ink tank is full.Follow this:Enter 80, then scroll down with the arrow down (round) key. You'll find an entry listed as purge count. If numberis over 6000, enter 2 7 8 3.This will reset the purge count value. Then restart the printer, hopefully without the annoying cannot clean message.

Nov 02, 2009 | Brother MFC 420CN All-In-One InkJet...

2 Answers

Brother MFC-420CN

press menu then start b/k copy then fourtimes arrow-up (tel.index). machine will be in maintenance mode. press start b/k copy: What two digit error code does the machine display? Post here again.

To leave the maintenance mode press 9 then 9.

Mar 07, 2008 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Printer message: Unable to Print

5A: encoder disc or encoder strip or main circuit board or printhead circuit board or power supply defective!

Sorry, cant be fixed by yourself!

Feb 20, 2008 | Brother MFC-440CN InkJet Printer

1 Answer

Brother mfc 420 cn

if you have an error 41 the machine wont print any more due to a short circuit in the print head.

plz check error message.

anyway, if you have received error 41 you need a new printhead or better (because its cheaper) a new mfc.


Feb 13, 2008 | Brother MFC 420CN All-In-One InkJet...

2 Answers

Brother Mfc 420cn says machine error AF

Open the small cover that hides the scanner flat cable. It has to be reconnected to the main pcb.

Oct 23, 2007 | Brother MFC 420CN All-In-One InkJet...

1 Answer

MFC-420CN scanner error

This might be a hint: another one is this:

Oct 01, 2007 | Brother MFC 420CN All-In-One InkJet...

2 Answers

Printer keeps turning off,,,error message MN1 in lcd

I realise this is an old question but I recently had a similar issue with our MFC-5860CN not receiving faxes and displaying the "Mn1" code. As it turns out "Mn1" means the machine is set to manual receive and was therefore not automatically receiving faxes. You will need to locate the "Receive Mode" option in the menu and change it to "Fax Only" or "Fax / Tel". Unfortunately I dont know what could have caused the turning off and on that the OP mentioned. I'm a little late to the party but I hope this info can help someone else!

Sep 24, 2007 | Brother MFC 420CN All-In-One InkJet...

3 Answers

Printer message: Unable to Print

5A means that the purge cam stopps abnormally when it is in use. This could be of a broken cam shaft. You have to replace the whole purge unit. This is a service job to do!

Aug 27, 2007 | Brother MFC 420CN All-In-One InkJet...

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