HP Printer model numbers that use hp 56 and hp 57
HP Deskjet 450 / 5150 / 5550 / 4650 / 5850 / 9650 / 9670 / 9680 / Photosmart 7150 / 7260 / 7350 / 7450 / 7550 / 7660 / 7755 / 7760 / 7960 / PSC 1110 / 1210 / 1311 / 1315 / 1350 / 2110 / 2175 / 2210 / 2410 / 2510 / Officejet 4110 / 4215 / 5505 / 5510 / 6110 / Digital Copier 410 / Fax 1240