Save time & money It offers up to a 50 percent lower cost per page compared to competitive colour lasers, & saves you time, being faster than a laser on typical print jobs, with no warm-up period. The WF-4640DTWF uses up to 80 percent less power than competitive colour lasers. High performance Its high-yield cartridges are low maintenance & its 20ppm print speed in black & colour means you can print quickly with a print resolution of up to 4800x 1200dpi. The paper capacity of up to 580 sheets means you won't need to spend time refilling. Built for business This inkjet printer has a monthly duty cycle of 30, 000 pages 4. Prints dry fast thanks to the DURABrite Ultra ink, meaning faster print speeds when printing double sided. Flexible & easy to use Its intuitive touch-screen makes functions readily available, & the rear manual paper tray lets you print on a range of media. It supports Epson Connect 5, so you can easily print from smartphones, tablets & more. Its Wi-Fi Direct capability lets you print from supported wireless devices without connecting to a router. Document Capture Pro compatibility offers seamless integration into most document management systems. Precision Core Precision Core, Epson's most advanced printhead technology, powers the output quality that Epson is known for, at the speeds required for office, commercial & industrial printing.