In the example used for this explanation, the model name is set to "MX520 series".When a model other than "MX520 series" is used, whatever appears in place of "MX520" becomes themodel name use.Ex:When you select MX520 series-2, the printer name displayed on the Bluetooth device is Canon MX520series-2.The initial value is set to MX520 series-1.• Graphic LCD• Text LCDAccess refusal setting (Graphic LCD)/Access refusal (Text LCD) ScreenWhen you search from a Bluetooth device, you can enable or disable the display of the printer name.• ON (Graphic LCD)/ON (Text LCD)Disables searching from a Bluetooth device.• OFF (Graphic LCD)/OFF (Text LCD) (Default setting)Enables searching and printing from a Bluetooth device.Security settings (Graphic LCD)/Security settings (Text LCD) Screen• Enable (Graphic LCD)/Enable (Text LCD)Selecting Enable (Graphic LCD)/Enable (Text LCD) allows you to choose either of the security modesbelow.• Mode 3(recommended) (Graphic LCD)/Mode 3 (recommend) (Text LCD)This mode is activated on link level enforced security.The passkey will be required when a Bluetooth device communicates with the printer. Normallyselect this mode.• Mode 2 (Graphic LCD)/Mode 2 (Text LCD)This mode is activated on service level enforced security.The passkey will be required when printing through the Bluetooth communication.After setting the security mode, we recommend making a trial print through Bluetooth communication.If printing does not start, change the security mode and try again.Setting a passkey will prevent unwanted access from other Bluetooth devices. You can change thepasskey on the Change passkey (Graphic LCD)/Passkey (Text LCD) screen.• Disable (Graphic LCD)/Disable (Text LCD) (Default setting)When you register the printer, you are not required to input a passkey.