1. Turn off the power switch.
2. Hold on the button then turn on the power switch.
3. Release the button when LED turns green after 5 amber blinks. (Any green will
do during the 5 blinks).
The LED color will be changed as following:
Amber red (5 blinks) amber (5 blinks) green (5 blinks)
green/amber (5 blinks) red/amber (5 blinks) solid green
Printer configuration will be restore to defaults as below after initialization.