Question about Brother MFC-5840CN All-In-One InkJet Printer

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I replaced the Absorption Pads and Flushing Case but still have..

I still have the message on the screen saying "Unable to Clean". Is there a way of reprogramming the printer now that the problem has been fixed and if so what is the procedure?

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  • kdill777 Jul 09, 2010

    Yes it solved that issue but I still have an issue with my black ink not working yet.

  • kdill777 Jul 09, 2010

    Using Cotton and Hot Water did not work to get the black ink to work.

    Any other suggestions?



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Since you replaced the absorber, etc., you need to reset the purge counter to zero.

1) Enter machine maintenance mode. Care is needed in maintenance mode, otherwise critical settings may be inadvertently corrupted.

FAX models with numerical keypads: Press the Menu/Set, *, 2, 8, 6 and 4 keys within two seconds. (if you fail to complete the correct key sequence within two seconds, press the Stop key to try again).

Other (non-FAX) models: Press the Menu/Set and Black Start keys. Next press the “up arrow” key four times to enter the maintenance mode).

2) Press the 8 then 0 keys in the initial stage of the maintenance mode to call up the machine's log information list (function code 80).

3) Press the Black Start key several times to scroll through the log information list to reach the purge counter. The purge counter is the 25th item in the list.

4) Press the 2, 7, 8, and 3 keys in this order to reset the purge count to zero.

5) Press the Stop/Exit key to return to the initial stage of the maintenance mode.

6) Press the 9 key twice to return to the standby state.

Hope this helps.

Posted on Jul 09, 2010

  • 2 more comments 
  • kdill777 Jul 09, 2010

    It did work Thank you!

    If I need to purchase more absorption pads and a flushing case can you refer me how to purchase these items?

  • kdill777 Jul 09, 2010

    I can print out things but only the color items come through the black does not.
    Can you offer steps to get my black ink to work. I just put in a new cartridge.

  • NinaE Jul 09, 2010

    Try cleaning the black print head:

    (1) Open the printer
    (2) Remove the black ink cartridge from the print head.
    (3) Use cotton swabs dipped in hot water to thoroughly clean the print head.
    (4) Repeat this until there is no ink residue coming off on the cotton swab.
    (5) Once finished, allow to dry and replace the cartridge

    Again, hope this helps.

  • NinaE Jul 09, 2010

    If the hot water is not cleaning the print head, use isopropyl alcohol, instead. If the print head is clean but still not working, your print head could be faulty.



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C D WORLD NAGPUR 09960014121


the proper reset code sequence to reset DCP printers without numeric keypad should be as follows:
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