1. Power off the printer.
2. Open the paper roll cover manually.
3. Keep pressing the feed button and then power on the printer. The printer
will emit one short beep sound.
4. Press the feed button of the printer 4 times.
5. Close the paper roll cover manually.
6. The printer will emit one long beep sound and then print a page displaying
LAN default settings.
7. The printer will restart by itself.
8. Ensure that LAN settings is correctly set to factory default as follows:
LAN Interface Information for Factory Default
Performing a Self-Test of the Printer
1. Power off the printer.
2. Press and hold the feed button of the printer.
3. Power on the printer. The printer will emit one short beep sound.
4. Release the feed button of the printer.
5. The printer performs a self-test and prints out the self-test result.
If the paper-out LED indicator still turns bright in red, press the feed
button of the printer to make the printer print the remaining self-test result.
6. Release the feed button of the printer and then the paper-out LED indicator
does not light.
Optional Wall Mount Bracket
1. Hold the concave portion of the cable cover with thumb, as shown in
the circled portion of the figure, and then remove the cable cover in the
direction indicated by the arrow in the below picture.