Business Source 36593 Multipurpose Copy Paper, 8-1/2 x 14", 20 Lb., 92 Bright, Carton of 10 Reams. Multipurpose paper delivers reliable, jam-free performance in high-speed copiers. Paper also works well in copiers, offset duplicators, multipurpose devices, fax machines, inkjet printers and laser printers. High opacity allows double-sided prints. 20 lb. paper is also acid-free for archival use.