Hi there and welcome
Can you remove the black ink cartridge, then remove the power to the printer.
Use a Q-Tip and clean the inside of the print head where the ink cartridge goes in. Make sure to get rid of all excess ink there.
Once done, put the ink cartridge back in and tell me if it now prints black please
Did this happen also with the previous cartridge before you changed it?
Take this ink out, shake it put it back in and tell me if it then prints please