Here is further proof. The following is from the 16 April 2009 issue of PrintGraphic News.
RESEARCHERS at the Queensland University of Technology, Brisbane, and the Fraunhofer Wilhelm-Klauditz Institute, Germany, have used HPLC and GC/MS analysis to better understand the environmental dangers of laser printer emission.
Laser printers emit volatile compounds (VOCs) including Ozone aldehydes, especially formaldehyde, and the benzene derivatives toluene, ethylbenzene, m- and p-xylene and styrene. Emissions also tend to be higher from laser printers than from inkjet printers.
CLICK HERE to see the full article in PrintGraphic News.