The interface was archaic. Gray boxes, poorly translated English, dropdown menus with cryptic codes. This was the raw, ugly underbelly of consumer electronics. No sleek icons here, just raw code wrapped in a basic UI.
The most common filename for the L3210 tool is something like Epson L3210 Adjustment Program v1.0.0.exe or L3210_ServiceTool_2.6.0.exe . Look for version numbers—newer is better. Adjustment Program Epson L3210
: Resets the printer's non-volatile memory to factory default settings. The interface was archaic