If you select Pairing as the BT Mode or On as the BT Encryption setting, the passkey must be entered into a Bluetooth enabled device before it can communicate with and print from the printer.
Note:
Be sure to set a unique passkey before using Bluetooth communication.
To change the passkey, follow the instructions below.
Press the Home button, select Setup, and then press the OK button.
Press the or button on the printer to select the Bluetooth settings.
Press the or button to select BT PIN Code Set.
Press the button to confirm your selection.
Press the or buttons to select a number for the first digit, then press the or buttons to change the digit.
Select numbers for the second through fourth digits in the same manner, then press the OK button to activate the passkey.