I was wondering if any members of the forum are able to kindly assist me in resolving my problem.
I am trying to carry out initial set-up of Brother MFC-6890CDW printer and find that I cannot print black on the intial test print page (colour is OK).
The machine is brand-new, and I have tried re-cleaning the headsseveral times but this doesn't solve the issue. I have also tried removing and re-installing the cartridge, but this doesn't help either.
I would be extremely grateful if I could be advised what to do.
The following may work: remove all the ink supplies. Remove the printhead and soak it for about 5 minutes in 0.5" of very hot water. Gently blot the printhead on a soft damp paper towel to remove the excess water, then replace in the printer and then reinstall the ink supplies.