The Epson L850, like all modern inkjet printers, has two specific counters that trigger a lock-up:

: You must temporarily disable all antivirus software, including Windows Defender Tamper Protection

Before we proceed, let’s be transparent about the dangers of using third-party service tools.

This is a request for a regarding the software utility known as the “Epson Adjustment Program” for the Epson L850 (also compatible with L800, L805, L810 series).