The tool acts as a master key. It connects to the printer's EEPROM (the chip that stores settings and counters) and initiates a "Waste Ink Pad Counter" reset.

The existence of the resetter tool is a thorn in the side of manufacturers. It bypasses their service revenue stream and extends the life of the hardware beyond their intended timeline. Consequently, the tools are frequently taken down via DMCA notices, forcing developers to rebrand or host them on shifting mirrors.

: Running print head cleanings, ink charging routines, and nozzle tests. How to Use the Epson L3060 Adjustment Program