Formulated with fast-drying pigment ink designed for high-speed print jobs, Epson DURABrite Ultra ink cartridges make your professional documents stand out with sharp text, bright colors & print-shop-quality results. This Epson printing system is designed to be used exclusively with Epson genuine cartridges. SmartValve Control Technology employs a pressure-activated valve to smoothly & rapidly deliver ink to the printheads at variable rates. MicroPiezo ink level sensor accurately detects the ink level within the cartridge & automatically alerts the user when ink is low. Device Types: Inkjet Printer; Color(s): Yellow; Supply Type: Ink; Market Indicator (Cartridge Number): 126.