Over time, this box fills with waste ink. The printer tracks this via a , not a physical sensor. After approximately 8,000 to 12,000 prints (or several dozen cleaning cycles), the counter hits 100%. The printer stops all functions to prevent physical overflow (which would damage your desk and the printer’s internals).
Epson L6190 Maintenance Box Resetter Guide: Fixing the "Service Life" Error epson l6190 maintenance box resetter free download
: Requires running the executable, selecting your model, and initializing the "Waste ink pad counter". Over time, this box fills with waste ink