1. Unplug POWER and USB cables.
2. Open the printer door and compressive + HOLD the POWER button
3. Connect the POWER cable anymore
4. Close the door of the printer, remove the POWER button.
5. Turn on the printer as usual and should not blinking anymore already
and
turn off the printer
unplug the power cable
press the power button, do not be disposed of first
another step on the power cable
off the power button
again press the power button