PIXMA MG7520 - Red on paper prints only yellow. Tried cleaning. Magenta is not printing at all,

[mjoa]

Magenta shows full, but is not printing.  All red areas print yellow.  I tried cleaning, checking alignment.  It is not printing at all.  Suggestions????  This worked fine for several months, but no longer.  

[Michael]

Hello.

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[Susanlyon1]

They charge $5 refundable. Did not help me. Getting ready to recycle the printer

[Susanlyon1]

This seems to be a common problem and when I cont sz cted their expert, no help at all.