I thought this article by Red River Paper might be interesting: http://www.redrivercatalog.com/cost-of-inkjet-printing-v1.html
To my delight, their analysis of ink usage costs is within 5% of what my records demonstrate with the R2400 since October 2005. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.