HP CE278D 78A Black LaserJet Toner Cartridge 2-PackProfessional Quality Prints with HP 78A Toner Cartridges Ensure consistent and reliable printing with the HP 78A Black Toner Cartridges (2 pack). Designed for use with HP LaserJet Pro printers, these original HP toner cartridges deliver sharp, black text and graphics on every page. Avoid common printing problems and maintain productivity with these high quality cartridges. Each cartridge in this 2 pack provides an approximate yield of 2,100 pages,