Oct 25, 2010. /Lesprom Network/. U.S. printing-writing paper shipments decreased 1% in September compared to September 2009, the American Forest & Paper Association said in a statement received by Lesprom Network. Two of the four major printing-writing grades posted increases compared to last September. U.S. purchases (shipments + imports – exports) of printing-writing papers increased slightly, up 1% in September. Total printing-writing paper inventory levels decreased 6% from August 2010.