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

2 Answers

Error message unable to print

I recently purchased an MFC 420-CN on ebay, and am getting the message unable to print. There is no foreign objects in the printer, and as far as I can tell, no pending Fax. By reading about others' problems I came up with an error code 4F. Any help for me before I have to send it back? Thanks, Deerslayer

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  • deerslayer Sep 20, 2007

    Thanks for your help. It will save me hours that I would have spent trying to figure it out. Just out of curiosity, if I had an extra print head how difficult are they to replace? could a novice do it?
    Thanks Again

  • Anonymous Nov 09, 2007

    I've had the MFC420CN All In One for about a year now. Things were fine 'til tonight, as the initial problem reported was LOW INK YELLW. Refilled the cartridge as I have done many times before, but still get the same message. Removed the yellow cartridge from the machine, closed the lid and did a color test print. Black is fine, but no colors will print. Opened the lid, placed the full (re-filled) yellow cartridge back in the machine, and that cleared the LOW INK YELLW message. The Brother software monitor on the computer also now agrees the yellow cartridge is full. However, the machine still won't get ink to flow after 4-5 cleaning cycles and still doesn't print anything in any color.

    I then went into the MAINTENANCE mode (MENU/SET, * 2 8 6 4) and using the "01" reset code to clear all RAM settings, including the user settings, tried 3 more cleaning cycles, but still there's no color printing available, only black. Any ideas out there as to why the cleaning cycles won't work? If the print head(s) are clogged, can they be cleaned on this machine and is there a procedure for gaining access to the print heads?

    Is there a separate code in the MAINTENANCE mode for re-setting the ink dot counters? I would like to be satisfied that the counters have been reset before messing around with the print head. Most likely they are, since no cartridges are report INK EMPTY or LOW INK.

  • jadess Dec 28, 2007

    We have an MFC5840. About 6 months after we got it it stopped printing and says "no cartridge, reinstall ink". First it was only about the black ink, then the yellow ink message came up too. Both were full. We tried reinstalling it, tried all the solutions we saw that others used and couldn't get it to work. We began calling Brother before the warranty expired. The first thing the support department asked each time we called was if we were having a problem with the ink in the MFC 5840 because they get so many calls about it. Still, they wouldn't take the printer back and kept telling us to reinstall the ink. Finally, the warranty is up. They won' t take it back.

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Hi, I have brother MFC 240C printer gives Print Unable 4F message, is it possible fix to fix it or throw printer in recycle bin.

Posted on Sep 03, 2009

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Send it back. The printhead voltage is innnnn disorder. Netxt will be Error 41 (Every Error starting with 4 means probs with printhead and in 99,9% the head has to be changed and cant be fixed!)

Posted on Sep 20, 2007

  • Mix-it-up
    Mix-it-up Sep 20, 2007

    Sure. Open printer. See pics how to do that: http://www.hstt.net/refill-faq/inside.ht...
    WEAR HANDGLOVES:
    You just have to turn one of the three white gear wheels on the left side -where the powercable is pluged in- (click, click)to get the head out of the parking station. Then push the head to the left and pull it up and loose the belt. Do NOT stain the encoder strip (foil which runs thru the head from one side of the printer to the other). Then unplug the two flat cable at the pcb. Here you are. Whats left is to unplug the inkcapillaries by unfasten the metal clip in front of the printhead by help of an screwdriver.(You can see it beneath the flatcable which comes out of the head.
    When installing the new head watch the encoder strip (foil) which has to be in exact position within the head. Otherwise there will be an Error 50. Another point is to use the seal which connects the inkcaps with the printhead (Dont loose it when unfasten from the old one!!)
    Set the metalclip (the minihole shows up).

    BTW You can use the printhead of an old dcp 110c (get it from eBay with a broken glas of scanner). Its not necessary to compute the eeprom with the printhead values :-)!

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1 Answer

"UNABLE TO PRINT 50" appears


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What is 'print unable 51' never had a paper jam!


Do the following:

Print Unable
XX
The machine has a mechanical
problem.
—OR—
A foreign objects such as a clip or
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Open the scanner cover and remove any foreign
objects inside the machine. ( You might try cleaning the scanner glass.)
If the error message continues, disconnect the machine from
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Try this and let me know what happens. Binary Bob

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  1. Check for foreign objects, such as a clip or ripped paper, inside the machine.
    Open the scanner cover by pulling up on the lower right corner of the cover. Look inside the machine and remove any foreign objects. If you see jammed paper or another item inside this area, gently pull it out and then close the scanner cover securely.
  1. If the error continues to appear, the machine may have a mechanical problem.
    If the error message continues to appear, the machine will need to be reset.

See page 123 of the manual for more. http://welcome.solutions.brother.com/BSC/public/files/dlf/doc000222/MFC-210C_UsaEngUsr_B.pdf

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Unable to print 50


The MFC has a mechanical problem, or a foreign object, such as a clip or ripped paper, is in the MFC.
Turn off the MFC's power switch, and then on again. If the error message continues, leave the MFC for several minutes and try it again.

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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.

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sorry!

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