Every time you clean your print heads—whether manually through the driver or automatically during power cycles—the printer pumps a small amount of ink into internal felt pads to flush clogged nozzles. These pads are not user-replaceable on most consumer models like the SX230.
Epson programs the printer’s firmware to count every drop of waste ink. Once the counter reaches a pre-set limit (typically 15,000 to 20,000 cleaning cycles or a specific volume of ink), the printer displays an error code such as: epson sx230 printer resetter adjustment program