The Epson Adjustment Program is the ultimate DIY tool to rescue your EcoTank printer from artificial obsolescence. The specific .rar file for the L380, L383, L385, and L485 is widely available if you know where to look (try YouTube tutorials posted in the last 60 days for "new" working links).

You will need:

However, I can offer a about what the Epson Adjustment Program is used for, why people seek it, and the legitimate alternatives. You can use this as a basis for your own documentation or troubleshooting guide.