Before downloading, ensure your computer setup meets these basic conditions:

If under warranty or if you’re not experienced with printer servicing, contact an authorized Epson service center. If you decide to use a third‑party reset tool (including packages labeled “nosware”), accept the risks: verify sources, scan downloads, and consider running the tool in an isolated environment.

Extract the downloaded ZIP or RAR file using WinRAR or 7-Zip. Step 2: Open the Adjustment Program Right-click on the AdjProg.exe file. Select . When the program opens, click the Select button at the top. Choose L4150 under the Model Name drop-down menu.

Once the application opens, click on the button at the top. In the Model Name dropdown menu, select L4150 .

The printer's power light and ink/paper lights flash alternately.

Can perform initial ink charges, printhead cleaning, and nozzle tests.

While the software reset solves the electronic block, you must manage the physical ink.