1. Based on average monthly print volumes of about 150 pages.
2. Included ink bottle yields based on the ISO/IEC 24712 pattern with Epson’s methodology. Actual ink yields will vary considerably for reasons including images printed, print settings, temperature and humidity. Yields may be lower when printing infrequently or predominantly with one ink color. All ink colors are used for printing and printer maintenance, and all colors must be available for printing. For more information, visit our official site.
3. Equivalent cartridge sets estimate based on print yields of the included Black and color ink bottles as compared to Epson standard-capacity ink cartridge sets for similarly featured cartridge printers as of March 2017.
4. Savings comparison based on the purchase cost of replacement ink bottles and the cost of enough cartridges to achieve the total page yields of the bottles using the manufacturers’ online prices and yields for the highest-capacity cartridges for the best-selling, similarly featured consumer inkjet printers priced at $499 or less per NPD, July 2016. Actual savings will vary based on print tasks, print volumes and usage conditions.
5. Most features require an Internet connection to the printer, as well as an Internet- and/or email-enabled device. For a list of Epson Connect enabled printers and compatible devices and apps, visit our official site.
6. 12 months of standard limited warranty or 50,000 plain paper sheets (whichever happens first). For an additional 12 months (total of 24 months or 50,000 plain paper sheets, whichever happens first), register your product and use Epson genuine ink bottles. See Limited Warranty for details.
7. ET-2500/2550/2600/2650/2700/2750/3600/3700/3750/4500/4550/4750/16500 included ink bottle yields based on the ISO/IEC 24712 pattern with Epson’s methodology. ET-7700/7750 included ink bottle photo yields are significantly lower and are based on the ISO/IEC 29103 pattern with Epson’s methodology. WF-R4640 included ink pack yields are estimated based on ISO/IEC 24711 test in Default Mode printing continuously. Actual ink yields will vary considerably for reasons including images printed, print settings, temperature and humidity. Yields may be lower when printing infrequently or predominantly with one ink color. All ink colors are used for printing and printer maintenance, and all colors must be available for printing. For more information, visit our official site.
8. Based on average monthly document print volumes of about 150 pages (ET-2500, ET-2550, ET-2600, ET-2650, ET-2700, ET-2750, ET-4500), 300 pages (ET-3600, ET-3700, ET-3750, ET-4550, ET-4750, ET-7700, ET-7750, ET-16500), and 800 pages (WF-R4640). 
9. For convenient and reasonable recycling options, visit our official site.
10. SmartWay is an innovative partnership of the U.S. Environmental Protection Agency that reduces greenhouse gases and other air pollutants and improves fuel efficiency.