Error message: "There is a problem with the supply system. Try replacing the affected cartridge [black] with a different, non-empty, cartridge" This is the third time that I have installed a black cartridge--full of ink. I haven't been able to print for a month. What do you suggest that I do? The people with whom I spoke in India and the Philippines have been no help. And there's no way of calling you in the U.S., apparently.
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