Atmtni

asked Apr 15, 2017 at 11:55am
Canon Canon Pixma MP550

PGBK Cartridge won't print.

Similar to all previous posts, my Canon MP550 won't print anything with the black PGBK cartridge, all other cartridges are printing fine. I have run nozzle clean, deep clean, removed, washed out and remounted print head, re-ran nozzle clean & deep clean, Still nothing is printed by the black PGBK cartridge, all other cartridges are printing fine. What next??? Please help!!!