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My Brothers MFC-420CN doesn't print. It says the black cartridge is empty but I have replaced it -(it still had nearly half a cartridge of ink in the one I took out). It still says the cartridge is empty and I am sure it is installed correctly.

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Unplug machine from power outlet.

open scanner and take all carts out. leave scanner open when reconnecting to power.
wait a minute. close scanner and wait til machine demands carts. palce carts into position and make sure they are secured.
watch display and give the right answer by pressing the right number!

Posted on May 05, 2008

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1 Answer

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...

1 Answer

MFC-420CN refuses to recognize or use black ink


The print head is clogged.Try powerful cleaning:
Press menu, then start black copy, then four times arrow-up quickly after another.Machine will be in maintenance mode
(all lights will flash).
Press 7-6-4 and OK (or start-black-copy).
When finished press 7-6-3 then start black copy,
printer will do a power purge.
Leave maintenance mode by pressing 9-9.
If this not help better think about new printer, because cost of repairing this one is profitable.

Nov 25, 2009 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Brother MC420CN- Black ink cartidge 'near empty' message persists


At 1 of the end sides of the cartage you will see a little window, a beam of light hits that window to determine if you need Ink..Place a small piece of Electric tape over that window and.wallah print,fax and copy away. Brother is a ripoff-A cheap printer that auto-cleans(wastes ink) and locks the whole system claiming your out of Ink or low>>>But this is sure to work! ;)

Nov 01, 2009 | Brother MFC 420CN All-In-One InkJet...

1 Answer

How can I print copies in black and white from my MFC-420CN using only black ink cartridge. When the other cartridges are empty ?? Solve This


Hello. I have one of these myself, and you cannot, if it detects any of the cartridges empty, it will not allow any printing, copying functions. You may be able to remove the cartridges, shake em up and return them to try, but I believe you are just going to have to get new ones.

Hope that helped, and thank you.

Mar 15, 2009 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Printer Head needs removal to clean dried ink


Not a cleanable type head, filiment gets burnt, when ink is not around it when printing is done. Ie dodgy ink blocks lines or has air in it and has permanently stuffed the print head, fix on brothers is replace head, cost excessive.,..time for the bin and the newfound wisdom that inks aint just inks.

Ink empy or no inks is read in ink well compartment via a black flag in ink cartridge that must be up and floating as not to obstuct photocell in well area.. check the rectangler bump in rear middle of cartridge. All cartridges must have flags up ie not empty, seeing ink does not indicate a cartridge with ink, a little is always left to prevent air entering system, hence machine calling out no innk cartridge to prevent damage...

Jan 26, 2009 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Brothers Printers ink cartridges


I have the same problem. I just discovered that if I turn OFF the power before I open the cover to check a cartridge it does not ask me if I just replaced it. I hope it was not just a fluke, otherwise I'll try unplugging the power next time, too. As for the "Can't print with an empty cartridge" problem; IE: Red is empty but you want to print with black; it is either that engineers don't know what they are doing at Brother or they are lazy or the managers are GREEDY. I think it is the last one. That is why I try NOT to buy "Genuine" Brother Ink cartridges. I used to refill them myself when I could find the ink, now I buy 3rd party cartridges. I pay $6.00 each for black and $7 each for color at a "Toner / Ink" shop about 1/2 mile from my office.

Nov 24, 2008 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Operating problem as described below


unplug mfc from power outlet. take all carts out and leave scanner open. wait a minute. replug to power. wait until machine demands carts. insert one after another and ANSWER display! Close cover.

NEVER change cart until mfc stopps printing (near empty is a reminder to buy new ones :-))

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

1 Answer

Magenta Near Empty??


This is only a reminder! The cart will show "empty" when it is really empty. You can print on until the printer stopps because of empty cart (and prints on when it is replaced).
Take the new on out and put it in again. answer display question with "1" (Yes, cart changed). "Near empty" Message will disappear.

Feb 12, 2008 | Brother MFC 420CN All-In-One InkJet...

2 Answers

Brother MFC-420CN color ink empty but want to print/copy in B&W


brother won't print od do anything is one of the 4 inks are empty so first of all you have to replace whatever is empty, when you remove it it will ask you if you changed it and if it is a new one you will press 1 twice per cartridge, if you put compatible ink in you will clog the ink head up and then be stuffed

Dec 15, 2007 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Brother MFC-420CN All-In-One


unplug maqchine from power. take all carts out. wait 5 minutes. connect machine to power. insert carts as demanded. give the right answer if machine asks if the carts are changed. machine will do some cleaning.

do you use generic ink? in that case you might have clogged the printhead with wrong ink. The ph cant be cleaned anymore.

nevertheless try this (carts should be nearly full!):
press menue then start mono (blue copy) then fourtimes arrow up. machine will be in maintenance mode. press 7 then 6 then 4. Machine will display init_all. press start mono. machine will refill tubes and
ph with fresh ink and do some cleaning. after that press 7 then 6 then 3 and start mono. machine will do a powerpurge.
press zero then 9 to do a quality test print. If it cant do the job leave maintenance by pressing 9 then 9. do the test print manually by pressing ink etc.

If you still do not see any colors the ph is clogged and cant be fixed anymore. It has to be replaced.

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

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