Say goodbye to ink cartridges The star of the ET-4550 is its newly designed integrated ultra-high-capacity ink tank system, which completely does away with the need for ink cartridges. That means less fuss & much more printing between refills than other inkjet printers. As well as doing away with ink cartridges, the ET-4550 has six 70ml colour & two 140ml black Epson genuine ink bottles in the box, which are easy, clean & quick to use. Ultra-low cost The ET-4550 saves you 70% on printing costs on average. Included in the box are two full sets of ink which will enable you to print up to 11, 000 pages in black & colour, at just a fraction of a penny per page. In fact, a customer would need to buy 72 ink cartridges on average to get the same yields. Wi-Fi & Ethernet connectivity Equipped with Wi-Fi & Wi-Fi direct, the ET-4550 can take advantage of all Epson Connect 4 features. Print quickly & easily over Wi-Fi from a smartphone using the free Epson i Print app, print remotely or email the ET-4550 a print job. Quick, quality results The ET-4550 uses Epson's own Micro Piezo technology for excellent-quality print-outs. Mono prints are delivered at a rate of 13 pages per minute while it can issue 7.3 colour pages per minute 5. The 150-sheet paper tray, 30-page ADF & automatic duplex printing help you boost productivity, while black pigment ink is used to deliver high-quality text printing.