Resetting the counter does not remove waste ink. If the pads are truly full, resetting the counter will allow the printer to work again, but the next cleaning cycle will cause ink to overflow inside the printer. This can ruin the mainboard, stain your desk, and damage the printhead.
Using this tool requires a specific "hacker" mindset because of how modern operating systems react to it: PRINTER ERROR CONTACT EPSON SUPPORT. - Facebook adjustment program for epson l121