If you are tech-savvy, understand printer mechanics, and are willing to install an external waste ink kit, the Epson PX660 Adjustment Program is a useful tool that can extend the life of your printer for free.

However, for the average user, the risks of downloading malware or accidentally changing hardware settings outweigh the cost savings. It is generally safer and easier to use the paid WIC Reset Utility or take the printer to a service center.

Score: 6/10 (Functional, but hampered by poor accessibility and high user risk).


The Epson PX660 Adjustment Program is copyrighted software intended only for authorized service centers. Downloading cracked versions violates Epson’s End User License Agreement (EULA). However, in many jurisdictions (including the US under the Magnuson-Moss Warranty Act), you have the right to repair your own property. Epson cannot void your warranty solely for resetting a counter – unless you damage the printer in the process.

Our advice: Use the program responsibly. Do not distribute it commercially. If you are a business, purchase a legitimate reset key from a licensed partner.

Launch the program. From the “Model Name” dropdown, select “PX660” or “EP-905A” (a Japanese variant). If not listed, try “XP-600 Series” – the internal logic is identical.

Verdict: Functional but High-Risk The Adjustment Program for the Epson PX660 is a powerful utility that successfully resets the printer’s internal waste ink counters, but it comes with significant caveats regarding user experience, safety, and hardware risks. It is a "last resort" tool rather than routine maintenance software.