This maintenance box has a new chip and all new wadding, it has been tested on a WF-7610 and shows 0% use

Compatible Printers:

For use with Epson EcoTank ET-16500 & WorkForce WF-3010DW, WF-3520DWF, WF-3530DTWF, WF-3540DTWF, WF-3620, WF-3620DWF, WF-3640DTWF, WF-7110DTW, WF-7210DTW, WF-7610DWF, WF-7620DTWF, WF-7620TWF, WF-7710DWF, WF-7715DWF, WF-7720DTWF