Designed with heavy business printing in mind, this extra-large, easy-to-install ink cartridge offers up to 50 percent lower cost per page than color laser printers. Instant dry ink enables fast duplex printing and great productivity. Epson's revolutionary DuraBrite Ultra Ink produces smudge-resistant, fade-resistant and water-resistant prints that look brilliant on both plain and glossy photo paper. Ink cartridge is designed for use with Epson WorkForce Pro WP-4520, WP-4533, WP-4590 Network Multifunction Printers; WorkForce Pro WP-4530, WP-4540 All-in-One Printers; WorkForce Pro WP-4020; and WorkForce Pro WP-4010, WP-4023 and WP-4090 Network Printers.