EarthChoice50 Recycled Office Paper was created for customers desiring a higher level of recycled content within their everyday-use paper, as well as FSC certified fiber. It's engineered to run smoothly on a wide variety of printing equipment and guaranteed on all high-speed copiers, laser printers and inkjet printers. ColorLok Technology delivers bolder blacks and vivid colors with inkjet printing. Paper is also Forest Stewardship Council (FSC) certified by the Rainforest Alliance.