A paper sorting system allows the high speed determination of color, glossiness and the presence of printed matter for individual sheets of paper in a stream of waste paper. Sorting criteria may be selected from a plurality of predefined options to sort the paper stream.
This application is a divisional of U.S. patent application Ser. No. 11/325,835, filed Jan. 5, 2006, now U.S. Pat. No. 7,173,709 which was a divisional of U.S. patent application Ser. No. 09/516,257 filed Feb. 29, 2000, now U.S. Pat. No. 7,019,822 issued Mar. 28, 2006, which parent application claimed benefit of provisional U.S. Patent Application Ser. No. 60/180,373, filed Feb. 4, 2000, and which parent application also was a continuation-in -part of U.S. patent application Ser. No. 09/301,715, filed Apr. 29, 1999, entitled "SYSTEM AND METHOD FOR SENSING WHITE PAPER", by Bruner et al., now U.S. Pat. No. 6,369,882 issued Apr. 9, 2002. The present application claims benefit of each of the noted prior applications.
