The Epson PX660 Adjustment Program is a specialized service utility primarily used by service centers to perform maintenance and hardware resets. User reviews generally split between those using the original service tool and those using alternative utilities like the WIC Reset Tool.  Common User Experiences & Reviews 

Waste Ink Pad Reset: The primary reason most users seek the tool.

My Adjustment Program Won’t Work – Troubleshooting

• Error: “Communication Error” – Use a different USB port. Disable antivirus temporarily. Run as Administrator.
• Error: “Model not found” – Your printer is in “brick mode.” Turn it off, hold the stop button + power button for 10 seconds, then release. Then run the program.
• The program crashes on start – You are using a version with malware. Delete it immediately.
• Counters reset but error returns after 2 days – The physical pads are too saturated. Clean or replace them physically.

Physical Maintenance: Resetting the counter only clears the software error. You must eventually physically clean or replace the waste ink pads to prevent ink from overflowing and damaging your desk or printer internals.

This utility is an original service program designed specifically for the Epson PX660 (specifically the EEE or CISMEA regional models). It provides a suite of maintenance functions that are otherwise inaccessible via standard printer drivers, such as: