Every time printing, ink sticks to a part of the paper, and both the insertion part of the cartridge and the cartridge themselves become inked with ink, cleaning is repeated many times, but the ink has leaked to the bottoms. The symptoms are exactly the same, after which the ink adheres to the roller part of the printer and the paper becomes dirty, the paper becomes dirty, an error occurs in the printer It does not become useless by the way it is. Because it was a new printer, because the ink stuck around here? I got an error and it became impossible to print. When ink was exchanged for genuine products, the paper did not get dirty and it did not become an error and it became normal. You had better use genuine after all. We recommend you to read this one genuine.