Turn off the printer. Wait 10 seconds. Turn it back on. Do not send any print jobs. Ensure paper is loaded (some resetters require paper to complete the test print).
To successfully reset an Epson L3100, the software must be used on a Windows PC connected via USB . : Ensure the printer is turned on and connected via USB. epson l3100 resetter exclusive
Many users fail because they skip this. With the printer on: Turn off the printer