To reset the waste ink pad counter on an Epson L3150 using the 2021 Adjustment Program, you need to use a dedicated "resetter" utility. This is typically required when the printer displays a "service required" error and has flashing ink/paper lights.
Turn the printer back on. The red lights should stop flashing, and the printer status should return to "Ready". Quick Alternative: Trial Reset If you prefer not to use the full Adjustment Program, the WIC Reset Utility reset epson l3150 adjustment program 2021