Bluetooth settings Screen• Graphic LCD• Text LCD1. Select device name (Graphic LCD)/Device name (Text LCD)Displays the device name of the printer to which the Bluetooth unit is attached.Select device name (Graphic LCD)/Device name (Text LCD) Screen2. Access refusal setting (Graphic LCD)/Access refusal (Text LCD)Selecting ON (Graphic LCD)/ON (Text LCD) will disable searching of this printer by a Bluetooth-compatible device.Access refusal setting (Graphic LCD)/Access refusal (Text LCD) Screen3. Security settings (Graphic LCD)/Security settings (Text LCD)Select Enable (Graphic LCD)/Enable (Text LCD) and then specify the security mode to activate thepasskey set on the Change passkey (Graphic LCD)/Passkey (Text LCD) screen.Security settings (Graphic LCD)/Security settings (Text LCD) Screen4. Change passkey (Graphic LCD)/Passkey (Text LCD)You can change the passkey. The passkey refers to an identification number to be determined. It isused to prevent unwanted access from other Bluetooth devices. The initial value is set to "0000".Change passkey (Graphic LCD)/Passkey (Text LCD) ScreenSelect device name (Graphic LCD)/Device name (Text LCD) ScreenAllows you to set the device name of the printer on a Bluetooth device.