Before using the program, you should physically inspect or replace the waste ink pads. For the L3256, the pads are located under the print head assembly. Alternatively, install an external waste ink tank kit (a DIY mod where you drill a hole and route a tube to an external bottle). If you mod the printer, you can safely reset the counter forever.
The Epson Status Monitor shows "Error Code: 000031" or similar maintenance warnings. Epson L3256 Adjustment Program
You can buy OEM waste ink pad sets for the L3256. Replacing them requires disassembling the entire printer chassis, removing the print head carriage, and swapping sponges. This is a 2-hour job for advanced users only. Before using the program, you should physically inspect