The HP13531 Ideal for the space-constrained home office, the HP13531 is a fast, high-performance all-in-one that offers affordable, individual ink cartridges and a space saving, compact design — the smallest in its class. Featuring a 2.5 LCD for easy navigation, the HP13531saves time with fast speeds of 9 ISO ppm (black) and 4.7 ISO ppm (color), plus a convenient, 30-page Automatic Document Feeder.