Statistics above are based on results from internal testing conducted by Epson, using Epson L6550 ISO Color 12ipm vs Laser model ISO Color 22ppm test for power consumed to print 20 pages. Testing single page A4 document of ISO Office Final PDF (ISO/IEC 24734). Each test was conducted twice by Epson to ensure consistency of results. Both printers have been tested under same conditions.
Annual CO2 output calculations were based on JEMAI-LCA Pro, Cedar tree CO2 absorption calculations were based on Japan Forestry Agency standards of 8.8kg CO2 per annum per tree.
Statistics above are based on results from internal testing conducted by Epson. Comparison models were selected from among the top-selling 50% of A4 color laser printers (21-30ppm class) listed in IDC Worldwide Quarterly Hardcopy Peripherals Tracker 2019Q3 data CY2018Q4-CY2019Q3 results. The volume of consumables and replacement parts needed to print 200K pages was calculated by Epson based on yields published by the manufacture for each model. Quoted yields are stimulated figures calculated by Epson based on ISO/IEC24712 methodology.