Black ink not working but all colors are. I Two new refilled cartridges used but neither worked. Initially it worked somewhat when the test print was run, but it decreased with each test and now is blank. I ran about ten cleaning cycles and allowed the ink to sit for 24 hours so that air can escape. Nothing worked. Any ideas?
I had a similar problem....almost no black. I purchased a Brother LC41BK, Black cleaning cartridge . The only place I could find it was at Abacus Ink private.abacus24-7.com (602) 787-1223. It took about three days of running paper through every day and going through the cleaning and testing routine until I had used all the "cleaning ink". I then replaced the regular cartridge and it works fine. Good luck...worth a try!! Jean
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Same here used genuine brother refill cleaned 15 times won't print black!
Same problem - colors work but not the black and I've cleaned it a zillion times with no improvement.
Black ink works barely along with the others. I too, have repeatedly cleaned the machine.
I have the same problem with a Brother MFC-425N. Tried cleaning many times over but no luck! :-((
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