Was going to put this under Digital Image Processing, but anyway. There are many criteria involved when deciding on a new computer, but if you have a business and are purchasing more than one machine, power consumption and other factors come into play. The EPA has created a searchable database of computers, monitors, etc. and assigns them different ratings. I wouldn't go there looking for photo printers as this is directed at businesses in general. The site is:
http://www.epeat.net/"EPEAT is a system to help purchasers in the public and private sectors evaluate, compare and select desktop computers, notebooks and monitors based on their environmental attributes. EPEAT also provides a clear and consistent set of performance criteria for the design of products, and provides an opportunity for manufacturers to secure market recognition for efforts to reduce the environmental impact of its products.
The EPEAT Registry on this web site includes products that have been declared by their manufacturers to be in conformance with the environmental performance standard for electronic products - IEEE 1680- 2006. The standard is summarized here, and may be purchased from the Institute of Electrical and Electronics Engineers. EPEAT operates a verification program to assure the credibility of the Registry."
