The Epson L3150 belongs to the EcoTank L‑series; it has built‑in ink tanks instead of cartridges. The printer keeps track of waste ink absorbed by the internal pads; when that counter reaches a predetermined threshold, the printer stops working and shows a service error (e.g., blinking lights). The official solution is to replace the waste ink pads and reset the counter at an authorised service centre. The adjustment program lets you perform that reset yourself, which can save time and money. It can also be used for initial ink charge, print head alignment, head ID setting, top margin adjustment, bi‑directional adjustment, USB ID input, and other maintenance tasks.

From the menu, select Waste ink pad counter and click OK .

The Epson L3150 (part of the EcoTank series) uses an (often called a "resetter" or "WIC reset tool") to clear waste ink pad counters. This is necessary when the printer shows "Service Required" or "Parts inside printer are at end of life" — typically after ~8,000–10,000 pages.

The rhythmic thwack-zip of the Epson L3150 had been the soundtrack to Marcus’s small home office for three years. It had printed wedding invitations, school reports, and the blueprints for his first freelance design gig. But today, the music stopped.