Hewlett-Packard has announced three new series of large-format printers, the DesignJet 500, 800 and 5000 printers. The company made the announcement at the Seybold publishing conference being held this week in San Francisco. The DesignJet 500 and 800 families have two members each - the DesignJet 500/500PS and the DesignJet 800/800PS printers - and are targeted at architects, engineers, designers or anyone who indulges in color-line drawing. While the DesignJet 500 series can print a maximum image resolution of 1,200 dpi, the 800 series can print up to a resolution of 2,400 dpi. Both the printers have similar specifications otherwise, with 69cc ink cartridge capacities, and print speeds of 85 square-feet per hour. Available in 24- and 42- inch sizes, the 500 series will range between £1,700 to £3,000 in price, while the 800 series will range in price between £4,000 to £6,200, according to HP. The HP DesignJet 5000 family, which includes the DesignJet 5000 and 5000PS systems, are targeted at print service providers or people who carry out heavy-duty printing. Using dye-based inks or pigment-based UV inks, the 5000 series of printer can provide print images or text up to a maximum resolution of 1,200 x 600 dpi (dots per inch), according to a company statement. All three printer families use HP's color layering technology, which places multiple drops of ink per dot, to provide better contrast. All three printer series will also come with Adobe’s PostScript 3.0 RIP support, with respective drivers for Apple’s Macintosh and Microsoft’s Windows operating systems provided with the printers.