Question about WorkForce WF-2840DWF - 536373

The Epson ink cartridge 603 and 603Xl, fit for all these following Epson printers, which are divided between:

Epson Expression Home:
Home XP-2100 Series, Home XP-2105, XP-2150, XP-2155, XP-3100 Series, XP-3105, XP-3150, XP-3155, XP-4100 Series, XP-4100, XP-4150, XP-4155.

Epson Workforce
WF-2810 DWF, WF-2820 DWF, WF-2830 DWF, WF-2830 DWF, WF-2835 DWF, WF-2840 DWF, WF-2845 DWF, WF-2850 DWF, WF-2870

DWF

The original Epson item. No.: C13T03A64010 / 603XL Ink cartridge multipack approx. total volume of 20.9 ml

It can also be used as an EcoTank UPgrade with 603XXL CISS System = Continuos Ink Supply System with ARC Chip = Auto Reset Chips and filled with Original Epson 102 EcoTank 4-colour Multipack Art. No.: C13T03R640.
The system is used like an Eco Tank ET-2750 or ET-3750 etc.. All have the same PrintHead and Board except firmware.