The Epson M2120 Resetter, also known as the Epson Adjustment Program, is a crucial utility designed to fix the "Service Required" error that occurs when the printer's waste ink pad counter reaches its limit. This software allows users to reset these internal counters to zero, effectively "unlocking" the printer and extending its operational life without requiring a trip to a service center. Understanding the "Service Required" Error
Once the software indicates the reset is done, turn the printer off and back on again. Epson M2120 Resetter