The Photosmart Pro B9150 is a top-of-the-line professional inkjet photo printer from HP. Primarily designed for light home/home office use due to its rather small ink cartridges, the B9150 allows you to print a large variety of paper sizes, including those too wide for regular photo printers. It can also be used to print ordinary double-sided documents through additional cartridges not included with the machine, it can be upgraded to further improve image quality in the same manner. In addition, the unit can also be connected to a network via a built in Ethernet port so a host PC does not have to be left on to act as a print server. The B9150 asserts its dominance over the rest of the line in speed as well as accuracy, able to print 13 x 19" photos in less than a minute and a half, or 4x6" in less than 10 seconds flat, all while maintaining professional colour quality via an optional raster image processor.