If you are using the software , follow these steps to reset the counter to 0%:
: Open the access panel on the printer (usually at the back or side) and pull out the T04D1 box. Align the Pins epson l6490 resetter
: For the L6490 specifically, you may need a T04D1 Maintenance Box Resetter —a hardware tool that resets the chip on the physical maintenance tank. How to Reset Your Epson L6490 (Software Method) If you are using the software , follow