The Epson L5590, L3550, & L3556, like many modern printers, contain embedded software that tracks ink usage, page counts, and waste ink accumulation. When these internal counters reach predetermined limits, the printer may display error messages such as “Service Required” or “Waste Ink Pad Full” and refuse to operate until the issue is addressed. To … Continue reading Epson L5590 L3550 L3556 Resetter