Review on LxTek Remanufactured Ink Cartridge Replacement for HP 56 C6656AN | Compatible with Deskjet 5850, 5650, 5150 | Compatible with Photosmart 7150, 7260, 7350, 7960 | PSC 2510 Printer | Pack of 2 Black Cartridges by Tony Miller

Surprisingly, this company sells two cartridges for less than one HP cartridge. The ink is black and the cartridge works great. The only problem I had with the printer was getting it to print without a color cartridge: I imagine the same would be the case with an HP cartridge. For other people with this problem: sometimes you just have to wait; Sometimes turning the printer off and on will print the printer. You can also try disconnecting and then reconnecting the printer cable. In any case, the cartridges work well.