Hi - I also have the incompatible black cartridge message. I've tried everything in all the documents - taking out the cartridge and gently wiping element of it; unplugging the power lead. Seeing if there are updates needed to the printer - there aren't. I have an instant ink account so there is no way my cartridge is incompatible. Can anyone help or is there a way to get instant ink to send another black cartridge sooner?
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