HP announces Smart Tank 670, 720, and 750 series printers
HP DeskJet 720c Driver Disc : Hewlett-Packard : Free Download, Borrow, and Streaming : Internet Archive
Printer All-In-One HP Smart Tank 720 6UU46A | Stephanis
HP Smart Tank 720 All-in-One Printer Wireless, Print, Scan, Copy, Auto Duplex Printing, Print up to 18000 black or 8000 color pages, White/Grey - MTech distributor