Ensure that the black ink cartridge has sufficient ink. If it's low, replace the cartridge with a new one or refill it if it's a refillable cartridge.  Epson printers usually have a utility for cleaning the printer heads. Use this utility to clean the print head, as clogged nozzles can prevent ink from flowing properly. To know more about epson printer not printing black ink . You can usually find this option in the printer settings or maintenance menu on your computer or directly on the printer's control panel.  Sometimes, misalignment of the print heads can cause printing issues. Check your printer's manual for instructions on how to align the print heads. This process may vary depending on the model of your Epson printer.