The compatible Epson WorkForce 40 inkjet cartridges from ezink Products are guaranteed to meet or exceed the print quality of the OEM Epson WorkForce 40 inkjet cartridges. Purchasing our compatible Epson WorkForce 40 ink cartridges is an excellent way to save money without sacrificing quality. Our Epson WorkForce 40 compatible Ink Cartridges have a 'Two Year 100% Quality Satisfaction Guarantee'. The use of our compatible Ink for the Epson WorkForce 40 does not void your printer's warranty. We also carry OEM cartridges for your 40 printer.