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

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Mfc 420cn Hi, The printer ran out of ink on yellow and magenta while still printing Black and white and Cyan. Now Black is OK and only Cyan is OK. I have run the cleaining cycle 20 times with no change. I have tried new full non-OEM replacement catridges which worked well before but no improvement. Can you tell me the best way to overcome this problem. Also advise if it is possible for the head to burn out beyond repair when there is a lack of ink. Thanks, Spots

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  • spots Sep 07, 2007

    Thanks. Will report back the results.



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Do use original brother ink to fix the problem: Do the cleaning twice (All colors and bk). You should see some blocks of the missing colors. If not printhead is damaged and cant be repaired (Dryed out or damaged valve or clogged with particles). If machine displays unable to clean, search googl for ERROR 46 (Reset and change of waist inktank)

Posted on Sep 07, 2007


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1 Answer

Won't print cyan color

try reseating the magenta ink cartridge or replacing it.

Jan 21, 2013 | Brother MFC 420CN All-In-One InkJet...

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How to clean printer head for brother mfc j265w

Hi .. i have a similar problem ... i juste replaced the Black cartridge ... and when i run a "test print" or an 'alignment print" ... the whole black ink block doesn't appear at all .. only the Magenta, CYan & Yellow are ok. HELP ! ;)

Apr 19, 2012 | Brother MFC 420CN All-In-One InkJet...

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Changed yellow ink to new cartridge. Printer won't recognize.

I contacted the Brother site, the support function there. Pursuant to what I found there, I unplugged the printer for ten seconds and replugged. The message display then told me that cyan was empty, and that magenta was near empty.

I installed a new cartridge in place of the empty cyan, and that fixed it.

Jun 04, 2009 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Print head for brother mfc420cn

Cleaning the print head
To ensure good print quality, the MFC will regularly clean the print
head. You can start the cleaning process manually if needed.
Clean the print head and ink cartridges if you get a horizontal line in
the text or graphics on your printed pages. You can clean Black only
or three colors at a time (Cyan/Yellow/Magenta), or all four colors at
Cleaning the print head consumes ink. Cleaning too often uses ink
Do NOT touch the print head. Touching the print head may cause
permanent damage and may void the print head’s warranty.
1 Press Ink.
2 Press ▲ or ▼ to select Cleaning.
Press Menu/Set.
3 Press ▲ or ▼ to select Black, Color or All.
Press Menu/Set.
The MFC will clean the print head. When cleaning is finished,
the MFC will go back to standby mode automatically.
If you clean the print head at least five times and the print has
not improved, call Brother Customer Service

Hope that helps,

Take Care,


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

1 Answer

Red Menace

Try unplugging the printer for about ten to fifteen seconds; then replug.

This may clear the printer's memory about the low magenta. I had a similar thing with yellow, and when I replugged it stopped complaining about the yellow and told me that my cyan was out, and magenta low. I replaced the cyan, and voila! I can print!

Sep 05, 2008 | Brother MFC 420CN All-In-One InkJet...

1 Answer

MFC-420CN does not print black

My yellow cartridge was doing the same thing as your black. So I took the cartridge out, and took a flashlight to see how it works. There is like a little straw on the right hand side which goes up into the printer cartridge, this I assume is to measure the ink. I took a needle and cleaned that 'straw' thoroughly. Reseated the ink, ran cleaning and test print, and then the printer found the yellow ink! You could give that a try. It might work for you too. (I have never used any ink but Brother ink in the printer, btw.)

Apr 20, 2008 | Brother MFC 420CN All-In-One InkJet...

2 Answers

Magenta Ink Partial Printing

Try cleaning the contact pads in the print carriage behind the cartridge with the eraser on a pencil. Also clean the ones on the cartridge for good measure.

Jan 18, 2008 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Colors not print well

This could be because of a defective valve.


Try this:

Place new carts into machine and make sure thy are secured.

Press menu then start bk copy then fourtimes arrow up. machine will be in maintenance mode and lights will flash. press 7 then 6 then 4 then start bk copy. machine will refresh ink within tubes and ph and do some cleaning. when done press 7 then 6 then 3 then start bk copy. machine will do a power purge.
Leave maintenance afterwards by pressing 9 then 9. Do run a test print by pressing ink etc.
If you still cant see any yellow and/or magenta the ph is defective and needs replacement.

Oct 25, 2007 | Brother MFC 420CN All-In-One InkJet...

1 Answer

No Magenta and No yellow

If you have really already run the cleaning cycle more than 20 times you should have get an error 46 which means that the printer cant clean anymore! So if not, use original brother inkcarts and do the the cleaning twice. If there is no block on the testsheet, the printhead is crashed. You cant fix it anymore.

Sep 03, 2007 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Can't Print!

You need all colours to print even though you are are using black only. Actually unless your particular model has a dedicated black setting all colours are used for black printing.

May 11, 2007 | Brother MFC 420CN All-In-One InkJet...

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