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I have a problem with my printwr that if I don't find an answer soon, I'm going to trash it. The black pigment print head prints a double line. I cleaned the print heads multiple times and checked the alignment and this is definitly not the problem. ...

My MG 7720 just quit printing magenta. The ink cartridge is almost full. i replaced it and still no magenta. I cleaned the heads several times and tried to print an entire sheet of paper magenta and it printed it yellow. I believe that is correct exc...