https://community.usa.canon.com/t5/Printer-Multifunction-Support/quot-Spool-Area-Full-quot-and-quot-Marker-Supply-Low-quot-below/m-p/286823#M34241

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I'm running Catalina on MacBook Air 2015. Since I upgraded to Catalina, my Canon all in one printer MG7720 error messages "Marker Supply Low." Canon suggests this is an Apple message. Can anyone help me? I am NOT a techie. I'm an 81 year old grandma.

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https://community.usa.canon.com/t5/Printer-Multifunction-Support/quot-Spool-Area-Full-quot-and-quot-Marker-Supply-Low-quot-below/m-p/286823#M34241