GATF has quite a bit of information on this topic. I would suggest
contacting Rick Hartwig from GATF (PNEAC Partner) at 412/621-6941.
EPA's Climate Wise program is looking for information about energy
efficiency for printers, especially innovative, printer-specific
approaches (e.g., heatset printers using heat generated by drying ovens
to heat their shop). Any good articles or case studies that you would
recommend to EPA? Suggestions can be sent directly to Kevin James at
EPA (260-2424) email@example.com.