09-17-2019 05:53 PM
Thanks for the suggestion of a workaround (for my MX860). I find that it does work, but very slowly prints black text in BLUE!
Perhaps the reason is that when I print the nozzle check, BOTH the black segments are missing (and incidentally, the letters PGBK at the top are missing while the bottom BK is present!). I've changed both black cartridges and cleaned and deep cleaned several times.
It makes me think that there must be a common printhead for both blacks, which must have failed.
If this is so, anyone have experience of replacing the printhead, assuming I can buy one?