1. Turn off printer. 2. Push and Hold STOP/RESET button. 3. Push and Hold POWER button. 4. Release STOP/RESET button, then push STOP/RESET button 2x. 5. Release all buttons. 5. Wait until the MAIN LED lamp (not POWER LED) shows 0. 6. Push STOP/RESET button 4x. 7. Push POWER button 1x (paper roller will spin, POWER LED blinking). 8. Wait until the POWER LED stop blinking and printer standby. 9. Push POWER LED to turn off. 10. Push again to turn on. Finish. Printer can be used normally. Good luck!!!