These HP 56 black remanufactured ink cartridges can be used with HP Deskjet 450ci, 450cbi, HP Deskjet 450wbt, 5150, HP Deskjet 5150w, 5550, HP Deskjet 5650, 5850, HP Deskjet 9650, 9670, HP Deskjet 9680, HP Photosmart 7150, HP Photosmart 7350, HP Photosmart 7260/v/w, HP Photosmart 7450, HP Photosmart 7550, HP Photosmart 7660, HP Photosmart 7755, 7760, HP Photosmart 7960, HP Fax 1240, HP PSC 1110, HP PSC 1210, HP PSC 1311, HP PSC 1315, HP PSC 1350, 2110, 2175, 2210, HP PSC 2410, HP PSC 2510, HP Officejet 4110 series, HP Officejet 4215 series, HP Officejet 5505 series, 5510 series, 6110 Series, HP Digital copier printer 410. These compatible inkjet cartridges contains exactly the same quantity of ink as the Hewlett Packard C6656A (No56) black original inkjet cartridge.