WF-2111, WF-2520, WF-2530, WF-2540, WF-2630, WF-2650, WF-2660, WF-2750, WF-2760, WF-3620, WF-3640, WF-4630, WF-4640, WF-5620, WF-5690, WF-6590, WF-7110, WF-7610, WF-7620, WF-7710, WF-7720, WF-7820, WF-7830, WF-7840
Epson offers an official, free software tool for certain consumer printer models on Windows. However, it usually only allows a one-time temporary reset so you can finish urgent print jobs, after which the printer must be sent to an authorized service center. Epson Wic Reset Key List
No, this only fixes the "service life" error. If your prints are streaky, you need to perform a printhead cleaning, which the WIC Utility also offers for free. WF-7840 Epson offers an official