Receipt Printer – Change COM Port to USB

Step for changing COM port to USB port #

1. First, turn off the receipt printer.
2. Press and hold the “Print” button.
3. Turn On the receipt printer. (Remember to add the paper inside)
4. Press and hole the “Print” button for 20 seconds until 2 beep sound.
5. Finally, can release your hand and the printer will print some result out.
6. The COM port now changed to USB port.
7. Done!