I have a Cannon MG3620 printer. When I print a Nozzle Check pattern, the black pattern of lines and the color bars print out fine, but the text at the bottom concerning number of pages; the first line doesn't completely print the first 3 numbers (251-300 Pages) and the second line almost doesn't print at all, just partially the last 3 numbers.
What could cause this?
The bars and some parts of the grid are missing so I recommended a nozzle cleaning and deep cleaning if you have not done so.
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I replaced the black ink cartridge, and the issue went away. Somehow the cartridge was causing the issue, and it wasn't a clogged head since it was printing, but printing fuzzy characters and barcodes, and even wavy vertical straight lines.
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