Never trust a resetter that resets blindly. A better tool first reads the current value (e.g., 120%). It displays the percentage so you know the damage.
Many heavy users install an "external waste ink bottle." This involves rerouting the waste tube from the internal pads to a small bottle outside the printer, making it easy to see and dispose of waste ink without ever needing to open the printer again. Quick Fixes for Common L220 Issues l220 resetter better