DoorStepInk Remanufactured 56 and 27 Black and HP 28 Color are Replacement ink cartridges for HP Fax 1240 Printers. Our Remanufactured replacements for HP Fax 1240 Cartridges are specially engineered to produce the same amount of quality as the OEM products at a fraction of the cost. Your satisfaction is 100% guaranteed with DoorStepInk.com. We provide the highest quality ink cartridges for HP printers, so you don't have to worry about a thing. Our ink cartridges are designed by industry experts, made in the USA, and backed by a satisfaction guarantee.