WorkForce Pro WF-6590 Multifunction Printer. Epson's fastest office multifunction printer; Built in auto-duplexing at print speeds as fast as 24 ISO ppm (black), 24 ISO ppm. Cost effective up to 50 percent lower printing costs vs. color lasers. Print up to 7,000 pages without changing cartridges. 75,000 page monthly duty cycle. Powered by PrecisionCore technology.