You're looking for an Epson L3100 resetter!
As of 2025, firmware 2.0+ breaks most older exclusive resetters. Search the forum “PrinterKnowledge.com” for the user “MikL” – he has released updated resetters for newer Epson models.
📥 Instructions:
Turn the printer off and back on when prompted. The red blinking lights should disappear. Critical Maintenance Warning