Flat, even surface for consistent ink and toner receptivity ColorLok Technology featuring colors that are 30% brighter for richer images, blacks that are up to 60% bolder for extra sharpness, and inks that dry 3 times faster for less smearing For all office machines Sustainable Foresty Initiative (SFI) certified Hammermill Business is an economical, general purpose paper that runs well in all types of office equipment. Your customers will want plenty of this versatile paper to fill their copiers, printers and fax machines.