Using the Nozzle Check utility. Epson Nozzle Check | How to Ensure Optimal Print Quality. Select Print Head Nozzle Check and press the OK button. The nozzle check is the often forgotten maintenance tool that has surprising utility and power. If you find that the printout is unexpectedly faint or that dots are missing, you may be able to identify the problem by checking the print head nozzles. Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzles.