A discussion of the various devices used to achieve grey scales, including an overview of current technology, and applications and projected trends. The various means of exposing media, the advantages and disadvantages of dry silver processing and continuing challenges in the industry are explored.
Charles W. Nordby,
"Continuous Tone Laser Printers: Technology, Applications, Markets And Trends", Proc. SPIE 1079, Hard Copy Output, (6 July 1989); doi: 10.1117/12.952785; https://doi.org/10.1117/12.952785