A①Check whether the ink cartridge nozzle is clean and dry, and wipe the nozzle carefully with a clean soft tissue.
② Take out the ink cartridge when the printer is off, shake the cartridge several times, and stick a clean tissue on the
surface of the nozzle to divert the ink.(Ask customer service for operation videos)
③Switch the nozzle of the printer in the settings.
④The above operation still cannot be solved, please consult customer service.