A: If you downgrade firmware, use the reset, and then upgrade back to latest firmware, the counter will remain reset. Epson cannot “see” that you used the program, but they can see the counter went from 100% to 0% instantly. They may refuse future service.
Crucial when replacing the printhead, as it allows the printer to recognize the new hardware's specific firing characteristics. Bi-D (Bi-Directional) Adjustment: epson et2750 adjustment program patched