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That seems to be a problem with an Epson printer.
1: you may simply have a defective black cartridge.
2: it may have been put in a little wrong, a little loose, that sort of thing. Take it out briefly, being careful not to touch the copper-colored contacts on one side, nor the inky underside, which would ruin the cartridge most likely - or your clothes - and then put it back in its slot, firmly. Try it again and run a nozzle cleaning at least once before concluding that the cartridge is defective and
3: ...putting another black cartridge into the printer - being careful to do so without touching the underside nor the copper-colored contacts on one side!
Let me know how it goes, what you think, and what happens, please: use the Reply To Expert function to respond with news.