Hi, I am Jasper Benjee from the United States. I would like to reveal you something about ink cartridges. Basically, ink cartridges are an important and integral part of an inkjet printer. The cartridges that are used in Epson printers are different in many ways than most of the other cartridges that may be used with any printer. Instead of heating up the resistor elements, Epson printers use a piezoelectric crystal in each of their nozzles. Epson black ink cartridge gives a fine quality print with a piezoelectric printer. You can buy quality black ink cartridges at an affordable price from tonershub.com.