Transform your black and white documents with the OKI B840dn, the A3 printer with the speed, versatility and footprint of an A4 device. With sharper mono output, provided by OKI’s innovative digital LED technology, the B840dn brings A4 and A3 mono printing closer to your small to medium workgroup. Gone are the days of having to decipher your spreadsheets and diagrams with a magnifying glass. The B840dn provides the convenience of fast desktop A4 printing speeds of up to 40ppm with the capability to print your documents at a size that gives them and you a new perspective. The B840dn is competitively priced when compared with many A4 printers and brings affordable, A4 and A3 mono printing, to every business, large or small. The B840dn is designed to offer low running costs with a low total cost of ownership that puts A3 printing in the reach of businesses and workgroups in every sector. What’s more it comes with a three-year warranty at no extra cost, so you can absolutely rely on it.