The (often found as a small utility file named AdjProg.exe or similar) is a piece of software that communicates directly with the printer’s firmware. Its primary function is to reset the waste ink counter back to zero.

The , also known as the Epson Adjustment Program , is a specialized utility used to resolve the "Service Required" error. This error occurs when the printer's internal waste ink pad counter reaches its limit, effectively locking the device to prevent ink overflow and potential damage. Why You Need a Resetter

Every time your Epson L110 performs a cleaning cycle or starts a print job, a small amount of ink is pumped into a waste ink pad. Once the printer's firmware determines this pad is "full" based on a page counter, it will stop printing and display alternating red blinking lights.

For users searching for a solution, the process is generally straightforward, though it requires a steady hand and adherence to the correct order of operations.