HP CP1700 and 2600 Series Duplex Unit C8219ASummaryLet the auto-duplex unit help you make two-sided print outs, brochures and more - hands-free! Save paper and money by getting the auto-duplex unit for two-sided printing for the HP color inkjet printers or HP business inkjet printers!Compatible Printers for the HP C8219A# HP DesignJet 10PS (C7790A)# HP DesignJet 20PS (C7790B)# HP DesignJet 50PS (C7790C)HP C8219A Summary