Epson ET 2550 is an All-in-One inkjet printer that comes with refillable ink tanks. The Epson ET 2550 print head is present inside the scanner unit. The maximum printing speed is nine pages per minute for black and 4.5 ppm for color. The print head is responsible for printing on the Epson ET 2550 printer. If the print quality is not up to the mark or the printout is not clear, you may need to clean the print head. Primarily, check for the clogged nozzles before cleaning the print head. You can check the Nozzle Check sheet to determine the printing qualities. You can also print the Nozzle Check remotely using the computer utility.