Black print is mostly skipped lines. Several deep cleanings do not help. New ink tanks do not help. Color prints all great. Probably need to replace print head.How do I do that??
I printed a deep cleaning check. Both grids looked like (B). However I no longer have that MX922 (up graded to a TR8520. I do not remember what was listed on the black cartridge. It was not a genuine Canon, but I had been using that same off brand fo...
