Epson does not provide the Adjustment Program to end users. It is proprietary service software. Using it does not "hack" your printer, but it does void your warranty if the printer is still under service contract. Furthermore, resetting the counter without handling the physical waste ink is irresponsible—ink can leak onto your desk, motherboard, or electrical components, causing a fire hazard or permanent damage.
: Many Epson printers, including the L3256, have waste ink pads that absorb ink used during print head cleaning. When these pads become full, the printer may stop working until they are replaced or reset. An adjustment program can reset these counters. epson l3256 adjustment program work